A tank for storing liquid has a base of area 1. 5msquare what is the pressure on the base of the tank when it contain oil weighing 6000N

The correct answer is option A.

The Gamma waves emitted from radioactive decay have a frequency of around 10¹⁹ Hz, which is much greater compared to the alpha of beta waves.

The frequency is directly proportional to the energy of the waves as given by the equation,

Where E is the energy, h is the Planck's constant, and f is the frequency.

Thus the gamma waves have a lot of energy compared to the other options.

Thus the correct answer is option A.

Answer:

Explanation:

Remark

Don't read it literally. It does not mean that you are on earth's surface one moment and the next your floating somewhere on the edge of the milky way.

It means that before the remark was made, you were outgoing and friendly. Something happened that caused you to withdraw from society and become somewhat like a hermit.

An electrically charged object can be used to attract any object with an opposite charge.

This is due to the fundamental principle that opposites attract and repel in physics.

Electric charge is a fundamental property of matter that gives rise to electromagnetic interactions. An electric charge, whether positive or negative, produces an electric field that surrounds it. This field exerts a force on any other charge in its vicinity that is either attracted to or repelled from it. Electric charge is a fundamental property of matter that produces a variety of electric phenomena. When the charge is concentrated in a localized region of space, the object is electrically charged. When there is a net accumulation of charge in an object, it becomes electrically charged. An electrically charged object produces an electric field in its vicinity, which exerts a force on other charged objects. An electrically charged object can be used to attract objects with an opposite charge or repel objects with the same charge.

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the two players will move off together to the left at a speed of 0.12 m/s.

To find the momentum of each player, we use the formula:
momentum = mass x velocity
For the first player (90 kg, 6 m/s to the right):
momentum = 90 kg x 6 m/s = 540 kg*m/s to the right
For the second player (80 kg, 7 m/s to the left):
momentum = 80 kg x (-7 m/s) = -560 kg*m/s to the left
Now we need to use the law of conservation of momentum, which states that the total momentum of a closed system remains constant. In this case, the two players collide and stick together, so we can treat them as a single system.
Before the collision, the total momentum is:
540 kg*m/s to the right (player 1) + (-560 kg*m/s to the left) (player 2) = -20 kg*m/s to the left
After the collision, the total momentum must still be -20 kg*m/s to the left. Let's assume that the two players move off together in the same direction, and call their combined mass M and their combined velocity v. Then:
momentum = M x v
We can write two equations based on conservation of momentum and conservation of mass:
(1) 540 kg*m/s + (-560 kg*m/s) = M x v
(2) 90 kg + 80 kg = M
Solving equation (2) gives M = 170 kg. Substituting into equation (1) and solving for v gives:
v = (-20 kg*m/s) / (170 kg) = -0.12 m/s to the left

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The volume occupied of  a particular kind of glass with a density of 2.40 g/cm^3l and a mass of  34.82 g is: 14.508 cm^3

The density formula and the procedure we will use is:

d = m/v

Where:

Information about the problem:

Applying the density formula and clearing the volume we get:

d = m/v

v = m/ d

v = 34.82 g/2.40 g/cm^3

v = 14.508 cm^3

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

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Answer:

As its speed increases.......

The kinetic energy of an object increases as its speed increases. So, option B.

The type of energy that an object possesses as a result of its motion is called kinetic energy.

The kinetic energy of an object is described as the amount of effort required to accelerate a body of a specific mass from rest to its specified velocity.

The body keeps its kinetic energy after gaining it during acceleration, barring changes in speed.

When slowing down from its current pace to a condition of rest, the body expends the same amount of energy.

A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

The kinetic energy of the object,

KE = 1/mv²

where m is the mass and v is the speed of the object.

Since, the mass is a constant, the increase in speed can increase the kinetic energy of the object.

Hence,

The kinetic energy of an object increases as its speed increases.

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Answer:

Alpha particles are Helium nuclei consisting of 2 protons and two neutrons (mass number 4, atomic number 2, no electrons and so carry a 2+ charge).

Explanation:

A.

The X velocity of the baseball: 10 m/s * cos(20 degrees) = 9.66 m/s to the right

The Y velocity of the baseball: 10 m/s * sin(20 degrees) = 3.11 m/s upwards

B.

The X velocity of the football: 0 m/s ( when thrown straight up)

The Y velocity of the football: 100 m/s upwards

C.

The X velocity of the tennis ball: 15 m/s to the right

The Y velocity of the tennis ball: 0 m/s ( when thrown off a cliff)

Velocity is described as the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.

Velocity can be represented mathematically in the  equation

V = d/t,

where V is the velocity,

d is the distance, and

t is the time.

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Answer:

Glass is an optically denser medium than air and water.

Explanation:

hope it helps have a nice night!

Answer:

The speed of light depends on the optical density of the medium. Therefore, light travels with different speeds in different media having different optical densities. For example, the speed of light in air is 3 × 108 m/s, whereas that in glass is 2 × 108 m/s and in water, it is 2.25 × 108 m/s

The current in the 3.0 Ω resistor is mathematically given as

I_X=1.8A

This is further explained below.

The proportion of individual resistance to the overall resistance is the same as the current flowing through a branch to the current flowing through the whole system.

When the total current in a parallel circuit is already known, a shortcut approach for finding the branch currents in the circuit may be found via the use of a formula called the current divider formula.

In series circuits, the voltage drops across each resistor, but the current stays the same.

This is analogous to what happens in parallel circuits when the current splits between two branches.

The following diagram illustrates how the entire voltage is distributed across each resistor while maintaining the same amount of current throughout. Ohm's law states that V = I*R.

current dividers ruleis used when current is divided in parallel, such as it is in this case so we employ the current dividers rule as follows

Generally,  the equation for current dividers rule is mathematically given as

\(I_X=\frac{R_T}{R_X+R_T} I_T\)

where,

I_X = current

R_X = resistor

R_T = total resistance

I_T = sum of the current flowing into a network where R _X is connected in parallel with R_T

Therefore

\(I_X=\frac{9}{3+9} 2.4\)

I_X=1.8A

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Explanation:

Given

Mass(M) = 80,000 kg

Acceleration (a) = 35 m/s²

Force (F) = ?

We know we have the formula

F = m * a

= 80000 * 35

= 2800000

= 2.8 * 10 ^ 6 N

The force is 2.8 * 10 ^ 6 N.

Hope it will help :)❤

If a rocket has a mass of 80,000 kg and accelerates at a rate of 35 m/s2.  then the force that provides this acceleration would be 2800000 Newtons.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The mathematical expression for Newton's second law is as follows,

F = m*a

As given in the problem we have to find the force that provides the acceleration of 35 meters / second², if the  rocket has a mass of 80,000 kg,

The force acting on the rocket =  80,000 × 35

                                                   = 2800000 Newtons

Thus, the force acting on the rocket would be 2800000 Newtons.

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Facilitated diffusion is a passive transport process that allows certain molecules to cross a cell membrane with the help of transport proteins, and is not necessary for the movement of small, hydrophobic molecules.

Facilitated diffusion would not usually be needed to move small, hydrophobic molecules across a membrane. transport proteins create channels or carriers that facilitate the movement of specific substances across the membrane.

Small, hydrophobic molecules, such as oxygen, carbon dioxide, and steroid hormones, can diffuse directly across the lipid bilayer of the cell membrane. The lipid bilayer is composed of a double layer of phospholipids, which forms a barrier that prevents the movement of polar or charged molecules. Hydrophobic molecules, which are nonpolar and soluble in lipids, can easily dissolve in the lipid bilayer and pass through it without the need for transport proteins.

In contrast, larger, polar, or charged molecules, such as glucose or ions, generally require facilitated diffusion or other active transport mechanisms to cross the membrane. These molecules are unable to dissolve in the lipid bilayer due to their hydrophilic nature and thus rely on specific transport proteins to facilitate their movement across the membrane. These transport proteins provide selective channels or binding sites that allow the molecules to pass through the membrane.

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The following are the values:-

(a)Water content (W%)  = 13.99%

(b) Total unit weight (Υ\(_{t}\)) = 1778 kg/m³

(c) Dry unit weight (Y\(_{d}\)) = 1559.75 kg/m³

(d) Void ratio (e)  = 0.718

(e) Porosity (n) = 0.417

Volume of mold (V\(_{t}\)) = 0.4 m³

Dry mass of sand (W\(_{s}\)) = 623.9 kg

Wet mass of sand (W\(_{t}\)) = 711.2 kg

Specific Gravity (G\(_{s}\)) = 2.68

Water content (W%) = \(\frac{W_{w} }{W_{s} }\) × \(100\)

Water content (W%) = \(\frac{711.2 - 623.9}{623.9}\) × \(100\)

Water content (W%) = 13.99%

Total unit weight (Υ\(_{t}\)) = \(\frac{W_{t} }{V_{t} }=\frac{711.2}{0.4}\)

Total unit weight (Υ\(_{t}\)) = 1778 kg/m³

Dry unit weight (Y\(_{d}\)) = \(\frac{W_{s} }{V_{t} }=\frac{623.9}{0.4}\)

Dry unit weight (Y\(_{d}\)) = 1559.75 kg/m³

Solid unit weight (Y\(_{s}\)) = \(\frac{W_{s} }{V_{s} }\)

Or

G\(_{s}\) = \(\frac{Y_{s} }{Y_{w} }\) ⇒ Y\(_{s}\) = G\(_{s}\)Y\(_{w}\)

Y\(_{s}\) = 2.68 × \(\frac{10^{-3} }{(10^{-2})^{3} }\frac{kg}{m}\) = 2680 kg/m³

Now,

Void Ratio (e) = \(\frac{Y_{s} }{Yd}-1\)

Void Ratio (e) = \(\frac{2680}{1559.72}-1\)

Void Ratio (e) = 0.718

Porosity (n) = \(\frac{e}{1+e}\)

Porosity (n) = \(\frac{0.718}{1+0.718}\)

Porosity (n) = 0.417

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A laboratory sample of sand is formed inside a mold of 0.4 cubic meters. It took 711.2 kg of wet sand (dry mass of sand = 623.9 kg) to fill the mold. Assuming the specific gravity of the solid is 2.68, compute the:

(a)Water content (W%)  

(b) Total unit weight (Υ\(_{t}\))

(c) Dry unit weight (Y\(_{d}\))

(d) Void ratio (e)

(e) Porosity (n)

Sin is the vertical component. So multiply sin 30 and 14. BOOM! You got the answer.

\( \sin(30) \times 14 \: = 7\)

On conservation of momentum:

(a) The cart goes in the opposite direction as the man does.

(b) With a speed of 0.07 m/s, the cart proceeds in the opposite direction as the guy.

(c) the cart starts moving in the forward direction with the same velocity of 0.07 m/s.

(a) As per the conservation of momentum, the total momentum of the system is conserved. Initially, the system was at rest, but when the man starts walking towards the other end, he gains some momentum in the forward direction, which the cart has to compensate for. So, the cart moves in the opposite direction to that of the man's motion.

(b) Assume that the man moves a distance of 10 m, i.e., the length of the cart.

Therefore, the total distance covered by the man is 20 m (10 m forward and 10 m backward).

The momentum gained by the man while walking forward is (70 kg) x (1.0 m/s) = 70 kg m/s.

As the total momentum of the system is conserved, the cart gains an equal and opposite momentum of -70 kg m/s.

The mass of the cart is 1,000 kg, so its velocity can be calculated using the conservation of momentum formula:

Total initial momentum = Total final momentum

0 = (70 kg) x (1.0 m/s) + (1,000 kg) x V

V = -0.07 m/s

So, the cart moves in the opposite direction to that of the man's motion with a speed of 0.07 m/s.

(c) When the guy comes to a complete halt at the back of the automobile, he loses the momentum he got while going forward, and the cart obtains equal and opposite motion. As a result, the cart begins going ahead at the same velocity of 0.07 m/s.

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if 5ev of energy is supplied to an electron with a binding energy of 2.3ev, with what kinetic energy is \(\Rightarrow \mathrm{KE}=5-2.3=\mathbf{2 . 7} \mathrm{eV}\)

What is kinetic energy?

The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration until its speed changes.

Photoelectric effect: The photoelectric effect is a phenomenon where electrons are ejected from a metal surface when the light of sufficient frequency is incident on it. These ejected electrons are called photoelectrons.

- When a photon falls on the metal surface, the photon's energy is transferred to the electron.

- Some part of the energy gets utilized in removing the electron from the metal surface, and the remaining goes into giving kinetic energy for the ejected electron.

- Work function \((\phi)\): It is the minimum amount of energy required to cause photo-emission of electrons from a metal surface when light is incident on it.

- Einstein's Photoelectric Equation gives the relationship between work function\((\phi)\), the kinetic energy of the emitted electron, and the energy of the photon \((E)\)

\($$E=\phi+K E$$\)

Given that:

Energy of incident light, \(E=5 \mathrm{eV}\)

Work function,\($\phi=2.3 \mathrm{eV}$\)

Using Einstein's Photoelectric Equation,

\($$\begin{aligned}& \mathrm{E}=\phi+\mathrm{KE} \\& 5=2.3+\mathrm{KE} \\& \Rightarrow \mathrm{KE}=5-2.3=\mathbf{2 . 7} \mathrm{eV}\end{aligned}$$\)

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The following equation may be used to determine heat loss via a glass window: Q = k * A / (T1 - T2) where Q denotes heat loss The thermal conductivity of glass.

(in W/m.K) is given by k. A denotes the window's surface area (in m2). T1 is the temperature of the inner surface (in degrees Celsius). T2 is the temperature of the outer surface (in degrees Celsius).The following equation may be used to determine heat loss via a glass window: Q = k * A / (T1 - T2) where Q denotes heat loss The thermal conductivity of glass.  The thickness of the glass is denoted by d. When we plug in the values, we get: Q = 1.4 * (1 * 3) * (15 - 5) / 0.005 Q = 1.4 * 3 * 10 / 0.005 Q = 1.4 * 600 / 0.005 Q = 840 / 0.005 Q = 168000 W As a result, the heat loss through a 1 m 3 m glass window with a 5 mm thickness and a temperature differential is 10 °C is equal to 168000 W.

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Answer:

Newtons third law of motion

Explanation:

For each action, there is an equal and opposite reaction.

Using a saltwater aquarium to model the ocean has limitations, such as showing only a small part of the actual ocean and being unable to replicate the vastness and complexity of the ocean ecosystem.

One limitation of using a saltwater aquarium to model the ocean is that it can only show a small part of the actual ocean. Since an aquarium is confined and limited in size, it cannot realistically replicate the vastness and complexity of the ocean ecosystem. For example, it may not have the space to accommodate large marine animals like whales or the turbulent currents that exist in the open ocean. Therefore, it is important to recognize that while a saltwater aquarium can provide some insights into the ocean, it cannot fully capture the dynamic nature and diverse interactions found within the entire ocean ecosystem.

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If two resistances, R1 and R2, are connected to a fixed voltage source in series, then the rate of joule heating in each resistance will be the same because they will both have the same voltage drop. However, if they are connected in parallel, then the rate of joule heating in R1 and R2 will be different because they will have different current flow.

When two different resistances are connected to a fixed voltage source, the rate of joule heating in them differs depending on whether they are connected in series or in parallel.
(a) In series, the total resistance of the circuit is the sum of the two resistances. This means that the current flowing through the circuit is lower than it would be if the resistances were connected in parallel. As a result, the rate of joule heating is lower in series than in parallel.
(b) In parallel, the total resistance of the circuit is lower than the resistance of either individual resistor. This means that the current flowing through the circuit is higher than it would be if the resistances were connected in series. As a result, the rate of joule heating is higher in parallel than in series.
In conclusion, the rate of joule heating in two different resistances connected to a fixed voltage source differs depending on whether they are connected in series or in parallel. In series, the rate of joule heating is lower, while in parallel, the rate of joule heating is higher.

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Answer:

The force that must be applied to the smaller piston if the crate is to be raised by the larger piston is approximately 42 N

Explanation:

The given parameters of the hydraulic lift are;

The diameter of one of the pistons = 1.5 m

The diameter of the other pistons = 8.0 cm = 0.08 m

The mass of the crate to be lifted with the larger piston, m = 1.5 × 10³ kg

The weight of the mass to be lifted by the larger piston, W₁ = m × g

Where;

g = The acceleration due to gravity = 9.8 m/s²

Therefore;

W₁ = 1.5 × 10³ kg × 9.8 m/s² = 14,700 N

The area of the surface of the circular piston, A = π × r²

Where;

r = The piston's radius

∴ The area of the larger piston with 1.5 m radius, A₁ = π × (1.5 m)² = 7.06868347058 m² ≈ 7.07 m²

A₁ ≈ 7.07 m²

The area of the smaller piston with 0.08 m (8 cm) radius, A₂ = π × (0.08 m)² = 02010619298 m² ≈ 0.02 m²

A₂ ≈ 0.02 m²

The pressure in the fluid of the hydraulic lift is constant, therefore, we have;

The pressure applied to the larger piston with 1.5 m radius, P₁ = The pressure applied to the smaller piston with 0.08 m radius, P₂

∴ P₁ = P₂

\(Pressure = \dfrac{Force}{Area}\)

\(P_1 = \dfrac{W_1}{A_1} = \ P_2 = \dfrac{F_2}{A_2}\)

\(\therefore \dfrac{W_1}{A_1} = \ \dfrac{F_2}{A_2}\)

Where, F₂, represents the force that must be applied to the smaller piston if the crate is to be raised by the larger piston;

\(\therefore F_2 = A_2 \times \dfrac{W_1}{A_1}\)

Given that we have the ratio of two areas which have π as a factor, we have;

\(\therefore F_2 = A_2 \times \dfrac{W_1}{A_1} = 0.08^2 \times \pi \times \dfrac{14,700}{1.5^2 \times \pi } = 41.81 \overline 3\)

The force that must be applied to the smaller piston if the crate is to be raised by the larger piston, F₂ = 41.81\(\overline 3\) N ≈ 42 N.

According to the theory of special relativity, time appears to run slower for a clock in motion relative to an observer. This effect is known as time dilation, and it becomes more significant as the velocity of the moving clock approaches the speed of light.

Therefore, in this scenario, the passage of time measured by the moving clock would appear to be slower than the passage of time measured by a stationary clock.

Einstein's work on special relativity has several ramifications, one of which is that time moves in relation to the observer. Time dilation occurs when an item is moving, which means that it perceives time more slowly while it is moving quickly than when it is at rest.

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Explanation:

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Answer:

in my opinion i think is it a (true). Because it had helped my brother with school so i think it is true

Explanation:

Answer:

g = 1.25m/s²

Explanation:

Given the following data;

Mass = 5kg

Height = 6m

Gravitational potential energy = 24J

To find the acceleration due to gravity;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

\( P.E = mgh\)

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

GPE = mgh

Substituting into the equation, we have;

24 = 5*6*g

24 = 30g

g = 30/24

g = 1.25m/s²

Therefore, the acceleration due to gravity on Planet X is 1.25m/s².

Answer:

g=0.8m/s^2

Explanation:

M=5kg

h=6m

GPE=24J

GPE=Mgh

g=GPE/Mh

g=24J/(5kg)(6m)=0.8

g=0.8m/s^2

Answer:

Explanation:

As per the given information, 18(O) is struck by a proton, and 18(F) and another particle are produced. The reaction has a Q value of -2.453 MeV, and the atomic mass of 18(O) is 17.999 160 u.

We have to find the atomic mass of 18(F). The Q value of a nuclear reaction can be given as Q = (Mi - Mf - Mp) × c²WhereQ = Q

value of the nuclear reaction = initial massMf = final massMp = mass of the projectile = speed of light

The Q value of the given nuclear reaction is -2.453 MeV. Since we know the initial mass (Mi) and the mass of the projectile (Mp), we can calculate the final mass (Mf) as follows: Mf = Mi - Mp - (Q / c²)Now, let's calculate the final mass of 18(F).

Initial mass (Mi) = mass of 18(O) = 17.999 160 UMass of the projectile (Mp) = mass of a proton = 1.007 825 uQ value (Q) = -2.453 MeVSpeed of light (c) = 2.998 × 10⁸ m/sMf = 17.999 160 u - 1.007 825 u - (-2.453 MeV / (2.998 × 10⁸ m/s)²)Mf = 18.000 674 therefore, the atomic mass of 18(F) is 18.000 674 u.

This question involves the concepts of the equations of motion for both the vertical motion and the horizontal motion.

The diver "does not" hit the rock.

First, we will calculate the time taken by the diver to land. For this purpose, we will use the second equation of motion for the vertical motion of the diver:

\(h = v_{iy}t+\frac{1}{2}gt^2\)

where,

h = height of cliff = 44 m

\(v_{iy}\) = vertical component of the initial velocity of the diver = 0 m/s

t = time taken to land = ?

g = acceleration due to gravity = 9.81 m/s²

Therefore,

\(44\ m=(0\ m/s)t+\frac{1}{2}(9.81\ m/s^2)(t)^2\\\\t = \sqrt{\frac{(44\ m)(2)}{9.81\ m/s^2}}\)

t = 3 s

Now, we will calculate the horizontal distance where the diver landed. For this purpose, we will use the equation of motion for the horizontal motion of the diver. Assuming the air resistance to be zero the horizontal motion will be uniform. Hence:

\(s = vt\\s = (1.8\ m/s)(3\ s)\\\)

s = 5.4 m

Since the section of the rock was 4 m away from the cliff. Hence, the diver crossed that rock section and safely laded at a distance of 5.4 m, which is 1.4 m ahead of the rock section.

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The attached picture shows the equations of motion for the horizontal motion and vertical motion.

Answer: Second law of thermodynamics is very important because it talks about entropy and  'entropy dictates whether or not a process or a reaction is going to be spontaneous'.

Explanation:

F = ma, or force equal to mass times acceleration, is Newton's second law of motion.

Second Law of Movement by Newton Since it shows how powers and movement are connected, F=ma is essential. You can use it to determine an object's velocity and position, as well as its acceleration with known forces. For inventors, scientists, and engineers, This is extremely helpful.

As per Newton's Second Law of Movement, when a power works on a mass, the mass speeds up (gains speed) (object). When you ride a bicycle, you can see this law of motion in action in a great way. Your bike makes up the mass. Your leg muscles press against the bicycle's pedals to produce the force.

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