Doug starts at position x = 10 m. He then undergoes a displacement Δx = +15 m. During his motion, is it possible that he passed through the origin at x = 0?

The magnitude of the resultant vector is 13.9m.

The size of the resulting vector can be determined using the Pythagorean theorem. As you can see from these two examples, the result of adding three or more rectangular vectors is easy to determine using the Pythagorean theorem. The vectors should be added in a different order. Equation 2 Subtracts the vectors in opposite directions from each other to get the resulting vector.

Where vector B is in the opposite direction to vector A and R is the resulting vector. The resulting vector is defined as a single vector that produces the same effect as many vectors produced together. The size of a vector is the length of the vector. The absolute value of vector a is represented by |a|. For more information on vector sizes, see Vectors overview. The formulas for the sizes of 2D and 3D vectors in terms of coordinates are derived on this page.

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A 30 cm long wrench is positioned at the origin, along the positive y-axis, and is holding a bolt. Just at end of the wrench, a force is exerted in the direction of "0, 3, and 4"

What does force in physics mean?

You can also use words like extend and squeeze to describe force. Force is described in physics as the pull or push that causes a massed object to change its speed. Force is an outside agent that has the power to alter a body's resting or moving position.

What function does force serve?

For instance, if there is no opposition, force is defined as the interaction that modifies an object's motion. When we look attentively at this sentence, we can see how push-pull plays a part in it. A pull is defined as a force that causes an object to move closer to you. On the other side, it is a shove if it travels away.

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Answer:

gpe gained = 20J

Explanation:

gpe = mass * gravity * height

gpe = (200/1000) kg * 10 * 10

gpe  = 20J

load=effort÷load arm

load=50N÷100

load=0.5

it can carry load of 0.5

Skid takes his dog, neutrino, out for a walk after midnight. he brings along his special dog flashlight so he can see in the forest behind his mansion. the flashlight has a 1.75 watt bulb inside of it and passes 150 c of charge during the 5 minute walk out to neutrinos favorite tree.

(a) The amount of current flows through the bulb is (I)= 0.5 A

(b) The amount of voltage of the battery to power this flashlight (V)= 3.5 V.

The voltage is a physical term that means that the current flow  in a wire create a quantity for the resistance of the wire. That is called the voltage. It can be measured in volt.

(a) To calculate the current we are using the formula,

I= q/t

Here we are given,

q= The amount of charge flowing through the wire. = 150 C.

t= The amount of time been the current flowing. = 5 min= 5*60 S.

We have to calculate the current flows in it. = I

Now we put the values in above equation, we get

I= q/t

Or, I=150/(5*60)

Or, I=0.5 A

So, now we can say that the amount of current flows through the bulb is (I)= 0.5 A.

(b) To calculate the voltage we are using the formula here is,

P= vI

Or, v= P/I

Here we are given,

P = The amount of power of the light. = 1.75 Watt.

Now we put the values in the equation we get,

v= P/I

Or, v= 1.75/0.5

Or, v=3.5 V.

Now we can say that, the amount of voltage of the battery to power this flashlight (V)= 3.5 V.

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The magnitude of the gravitational force on mass M is: F = G * (M * m) / (L^2 + d^2)

To find the magnitude of the gravitational force on mass M, we will use Newton's Law of Universal Gravitation. The formula for this is:
F = G * (M * m) / r^2
Where F is the gravitational force, G is the universal constant of gravitation, M and m are the masses of the objects, and r is the distance between their centers.

Given the information in the question, we have:
M = mass of the larger object
m = mass of the smaller object
L = distance between the centers of the two objects in the horizontal direction
d = distance between the centers of the two objects in the vertical direction

We need to find the total distance r between the centers of the objects. To do this, we can use the Pythagorean theorem:
r^2 = L^2 + d^2
Now, we can plug this into our gravitational force formula:
F = G * (M * m) / (L^2 + d^2)

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Answer:

a person climbs a set of stairs

Explanation:

A person climbing a set of stairs increases his height, which also increases his gravitopotential energy. Gravitopotential energy increases with height as you move further away from the surface of the Earth.

A wind up toy winding down is already expending its stored up potential energy. An apple falling from a tree is already losing its gravitipotential energy. A firecracker that explodes is already using up the potential energy stored in its chemical. All these are cases where the potential energy is decreasing.

a. The dimensions that minimize weight, the base length should be equal to one-eighth of the height.

b. We can achieve a design that minimizes the weight of the tank while still meeting the required specifications.

To find the dimensions that will make the tank weigh as little as possible, we need to consider the relationship between the dimensions, surface area, and volume of the tank. A smaller surface area would require fewer stainless steel plates, reducing the weight of the tank. Additionally, minimizing the height would decrease the volume, resulting in less steel needed overall.

a. To determine the dimensions that minimize weight, we can start by considering a square base for the tank. Let's assume the base has sides of length x. In this case, the surface area of each of the four sides of the tank would be 500 ft² (since the total surface area is 4 times the base area).

Using the formula for the surface area of a rectangular tank:

Surface Area = 2lh + lw + lh

For our square base tank, this simplifies to:

Surface Area = 4x² + xh

To minimize weight, we want to minimize the surface area. Taking the derivative of the surface area with respect to x, we can find the critical points. Differentiating the equation with respect to x yields:

d(Surface Area)/dx = 8x + h

Setting this derivative equal to zero and solving for x, we get:

8x + h = 0

x = -h/8

Since both x and h should be positive (as they represent lengths), we can conclude that x = h/8.

Therefore, for the dimensions that minimize weight, the base length should be equal to one-eighth of the height.

b. To take weight into account, we considered the relationship between surface area, volume, and weight. By minimizing the surface area, we reduce the amount of stainless steel required to construct the tank, thereby reducing its weight. Additionally, minimizing the height of the tank decreases its volume, which further reduces the weight by reducing the amount of steel needed.

By optimizing the dimensions based on these considerations, we can achieve a design that minimizes the weight of the tank while still meeting the required specifications.

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Both on the part of the Earth that faces the Moon in a direct line and on the part of the Earth that faces the Moon in a straight line.

Because the moon's gravitational attraction is greatest on the side of Earth that confronts it, the point confronting the moon is created. High tide happens as gravity draws the water toward the moon.

It seems sense to conclude that the range of the semi - diurnal tides is greatest near the equator and diminishes toward the poles since, on average, the moon is directly above the equator.

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Answer: There are multiple options:

By varying the supply voltage.

By varying the flux, and by varying the current through the field winding.

By varying the armature voltage, and by varying the armature resistance.

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The gravitational force of 4N exists between two objects. If the mass of one of the objects is tripled and the distance between the objects is doubled.

the new force of attraction between the objects can be calculated using the following steps:Step 1: Determine the initial force of attraction.F = G (m1m2/d²)where F = Force of attraction, G = gravitational constant = 6.67 × 10⁻¹¹ N m²/kg², m1 = mass of the first object, m2 = mass of the second object, and d = distance between the centers of the two objects.In this case, the mass of both objects is unknown, so we can write:F = G (m²/d²)where m = mass of each object.F = 4NStep 2: Determine the new force of attraction.

F' = G [(3m) × m/ (2d)²]F' = 3Gm²/4d²where F' = new force of attraction, m = initial mass of each object = F/ (Gd²), and 2d = new distance between the objects = 2d = 2 × d.Substitute m = F/ (Gd²) in the above equation:F' = 3G (F²/ G²d⁴)/ 4d²F' = 3F²/ 4Gd²Therefore, the new force of attraction between the objects is 4.5 N (approximately) when the mass of one object is tripled and the distance between them is doubled.

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The time elapsed when the ball reaches the window is 1.55s

As per the question:

Final velocity, v = 11 m/s

Height, h = 29m

Acceleration, a = g = -9.8 m/s

From the third equation of motion:

v² = u² +2as

u² = v² - 2as

u² = (11)² - 2 × (-9.8) × (29)

u² = 689.4

u = √689.4

u = 26.25 m/s

Now, from the first equation of motion:

v = u + at

\(t=\frac{v-u}{-g}\)

\(t = \frac{11 -26.25}{-9.8}\)

t = 1.55 s

Therefore, the time elapsed when the ball reaches the window is 1.55s.

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The electron will be forced to move in the direction of the electric field, which in this case is the positive x-axis direction.

The electric field exerts a force on the electron that is equal to the product of the charge of the electron and the magnitude of the electric field. The force will act to accelerate the electron in the direction of the electric field.
An electron that is stationary will be forced to move in the direction opposite to that of the electric field if it is placed in a uniform electric field that points along the x-axis. The direction of the electric field determines the direction of the force felt by the charged particle.A uniform electric field is one in which the electric field is the same at all points in space. The strength of the electric field, in this case, is independent of the position of the point in space. The electric field is a vector quantity that is directed along the direction of the force experienced by the charged particle that is placed in the field.

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Answer:8.1g

Explanation:

Explanation:

you can find by using. volume = mass/ density of aluminium.

Answer:

Gaseous; liquid.

Explanation:

A planet can be defined as a large celestial body having sufficient mass to allow for self-gravity and make it assume a nearly circular shape (hydrostatic equilibrium), revolves in an orbit around the Sun in the solar system and has a cleared neighborhood.

Some examples of the planet are Mars, Venus, Earth, Mercury, Neptune, Jupiter, Saturn, Uranus, Pluto, etc.

Basically, the planets are divided into two (2) main categories and these includes;

I. Inner planets: these planets are the closest to the sun and comprises of mercury, venus, earth and mars.

II. Outer planets: these planets are beyond the asteroid belt and comprises of jupiter, saturn, uranus and neptune, from left to right of the solar system.

These outer planets are made mostly of gases (hydrogen and helium) causing them to be less dense than the solid inner planets. These gases are generally known to be less dense in terms of physical properties.

In conclusion, Planets in the solar system can vary from rocky and terrestrial objects to gaseous and liquid object.

However, the set of characteristics which is unique to the outer planets are gaseous and liquid.

Answer:

300 Newtons

Explanation:

Weight is the force of attraction between two bodies, one usually larger (like a planet), and one smaller (like a person). Force can be calculated using the formula: Force = mass × acceleration.

The mass here is 12kg, the acceleration, which in this case, is the acceleration due to gravity is 25m/s/s, by plugging in our values, we have

Force = 12 × 25 = 300 Newtons or 300 N for short.

Answer:

It's B .0405 I just did this

Explanation:

ur welcome

Potential energy is the energy that an object has based on its position is true .

What is the name for the potential energy created when an item contracts or expands?

Elastic potential energy is the potential energy resulting from an object's form. When a force stretches or compresses an elastic substance, this energy is produced. The potential energy of an item increases with the amount it is compressed or stretched.

Potential energy is a form of accumulated energy that is dependent on the relationship between different system components. When a spring is compressed or expanded, its potential energy increases. If a steel ball is raised above the earth as opposed to falling to the ground, it has more potential energy.

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MAIN ANSWER- \(5/\sqrt{21} sec\)

supporting answer-When a body is moving, it experiences resistance because it interacts with its surroundings. This resistance is a friction force. Friction opposes relative motion between systems in contact but also allows us to move, a concept that becomes obvious if you try to walk on ice. Friction is a common yet complex force, and its behavior still not completely understood. Still, it is possible to understand the circumstances in which it behaves.

body of the answer- a block of mass m with 10kgs is sliding on a inclined plane with frictionless surface

final answer- \(5/\sqrt{21} sec\)

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Answer:

I think its A & C

Explanation:

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.

Elements located in the vertical column of the periodic table are of the same group and have similar chemical properties, therefore the correct answer is option A and option C.

The total number of protons present in an atom is known as the atomic number of that atom.

While the atomic mass of an atom is the sum of the total number of protons and the number of neutrons present inside any atom.

The element belonging to the same group have approximately similar chemical behavior while on the other hand element belonging to the same period would have the same outermost shell.

The correct response is option A and option C because elements included in the vertical column of the periodic table belong to the same group and have comparable chemical characteristics.

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Newton's 2nd law of motion says:

Net force = (mass) · (acceleration) .

Newton didn't make up this law for his health.

Let's use it to answer this question about the car moving down the road.

Net force on the car = (car's mass) · (car's acceleration).

But the net force on the car is zero.  So we can write:

0 = (car's mass) · (car's acceleration).

Look at the right side of this equation.

Newton's law tells us that the product of the car's mass and the car's acceleration is zero.

That tells us that at least one of three things must be true.

Either 1). the car's mass is zero, or 2). the car's acceleration is zero, or 3). Newton was crazy.

We're pretty sure that 1). and 3). are false. The car's acceleration is zero.

What does this mean ? It means that the car's speed and direction are not changing.

That's exactly what Choice-B says.

The tension in the string if a rod PR is balanced on a pivot at the end R while a string is used to support the rod at P is 6 N

Moment = Force * Perpendicular Distance

Let us consider the pivot side be initial point,

Since the rod is balanced,

CM = ACM

CM = Clockwise moment

ACM = Anticlockwise moment

F = 9 N

PQ = 15 cm = 0.15 m

QR = 30 cm = 0.3 m

PR = PQ + QR

PR = 0.15 + 0.3

PR = 0.45 m

CM = W * QR

CM = 9 * 30

CM = 2.70 N m

ACM = T * PR

ACM = 0.45 T N m

2.70 = 0.45 T

T = 6 N

Therefore, the tension in the string is 6 N

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The transduction of sound waves to changes in membrane potential takes place : in the inner ear, specifically in the cochlea.

The cochlea is a spiral-shaped structure in the inner ear responsible for converting sound waves into electrical signals that can be interpreted by the brain.

Within the cochlea, there are specialized sensory cells called hair cells. These hair cells have tiny hair-like projections called stereocilia that are embedded in a gel-like structure called the tectorial membrane. When sound waves enter the cochlea, they cause the fluid inside the cochlea to vibrate.

As the fluid moves, it causes the basilar membrane (located underneath the hair cells) to move up and down. This motion causes the stereocilia on the hair cells to bend. The bending of stereocilia opens ion channels, allowing certain ions, such as potassium, to enter the hair cells. This influx of ions generates changes in the membrane potential of the hair cells, creating electrical signals.

The electrical signals are then transmitted through the auditory nerve to the brain, where they are interpreted as sound. Thus, the transduction of sound waves to changes in membrane potential occurs in the hair cells of the cochlea.

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Answer:

1/2 M V^2 = M g H

Initial kinetic energy equals final potential energy

H = V^2 / (2 g)        satisfies given conditions

Answer:

Seahawks

Explanation:

THEY ARE THE BEST TEAM!!!

Answer:

seahawks

Explanation:

yes they r gud

Answer:  The cell shrinks

Explanation:   Seawater is hypertonic. If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). So if you get thirsty at the beach drinking seawater makes you even more dehydrated.

So, the value of work that he had done is 900 J.

Hi ! Here I will discuss about the effort to raise an object. Previously, when we raised an object, the energy that we put out had to be equal to the change in potential energyHi ! Here I will discuss about the effort to raise an object. Previously, when we raised an object, the energy that we put out had to be equal to the change in potential energy that happened. This is because, the higher the height of an object, the greater value of potential energy. The equation that applies is as follows :

\( \sf{\bold{W = \Delta PE}} \)

\( \boxed{\sf{\bold{W = m \times g \times \Delta h}}} \) ... (i)

\( \boxed{\sf{\bold{W = m \times g \times (h_2 - h_1)}}} \) ... (ii)

With the following condition :

However, because the value of w (weight of the object) is already mass multiplied by gravity (w = m × g). So :

\( \sf{W = m \times g \times \Delta h} \)

\( \boxed{\sf{\bold{W = w \times \Delta h)}}} \)

With the following condition :

We know that :

What was asked :

Step by step :

\( \sf{W = w \times \Delta h} \)

\( \sf{W = 600 \times 1.5} \)

\( \boxed{\sf{W = 900 \: J}} \)

So, the value of work that he had done is 900 J.

An expression for the pressure gradient in the x direction a - bc = 0,c = - 0.006418.

As given ρ = c

Momentum in x,

ρ \(\frac{du}{dt}\) = ρ gx - \(\frac{dp}{dx}\) + μ (\(\frac{d^2u}{dy^2}\) + \(\frac{d^2u}{dy^3}\) + \(\frac{d^u}{dz^2}\))

u = ay - b(y - \(y^{2}\))

dp/dx = 2bμ

T = 0, du/dy = 0

a - bc = 0

c = - 0.006418

The pressure gradient, which is a physical term used in atmospheric science to indicate the direction and rate at which pressure rises most quickly around a certain site, is normally defined as being of air, although it can also more broadly refer to any fluid momentum. Pascals per meter (Pa/m) is a dimensional unit used to express the pressure gradient. The gradient of pressure as a function of position is what it is mathematically referred to as. The force density is the name for the negative gradient of pressure.

Pressure gradients in petroleum geology and petrochemical sciences relevant to oil wells, and more especially in hydrostatics, refer to the gradient of vertical pressure in a column of fluid within a wellbore and are often stated in pounds per square inch per foot (psi/ft)

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