Anything that has mass and occupies space is defined as.

Answer:

a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving.

Explanation:

Answer:

A net force that acts on an object to keep it moving along a circular path

External force and here centripetal force

The magnetic flux through a certain coil is given by phim = (1/50pi) cos( 100pi t) where the units are si. the coil has 100 turns. The magnitude of the induced EMF (in volts) when t = 1/200 s is 1 / 50 π

Magnetic flux is defined as the number of magnetic field lines passing through a given closed surface. It provides the measurement of the total magnetic field that passes through a given surface area.

An EMF is induced in the coil when a bar magnet is pushed in and out of it. EMF of opposite signs are produced by motion in opposite directions, and the EMF are also reversed by reversing poles.

EMF =   d Ф / d t

Given phi = Ф =  (1/50pi) cos100pi t  

hence ,

EMF = d ((1/50pi) cos 100pi t ) / d t

       = 1/50π * cos 100 pi

       substituting value of pi

       = 1 / 50 π * cos (100 * 180)

       = 1/ 50 π * cos ( 1800 )

EMF = 1 / 50 π

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Answer:

ELASTIC collision

kinetic energy is conservate

Explanation:

As the ball bounces to the same height, it can be stated that the impact with the floor is ELASTIC.

As the floor does not move the conservation of the moment

            po = pf

            -mv1 = m v2

- v1 = v2

So the speed with which it descends is equal to the speed with which it rises

Therefore the kinetic energy of the ball before and after the collision is the same

Answer:

CORRECT (SELECTED)

It is elastic since kinetic energy was conserved.

Explanation:

Charge of an electron, e = 1.60217662 × 10-19 coulombs whereas to calculate the charge of an electron it is not fixed as it may vary.

The charge of the electron is comparable to the size of the rudimentary charge (e) but bears a negative sign. Since the esteem of the rudimentary charge is generally 1.602 x 10-19 coulombs (C), at that point the charge of the electron is -1.602 x 10-19 C.

When communicated in nuclear units, the basic charge takes the esteem of solidarity, i.e., e = 1. In this way, the electron’s charge can be signified by -e. Even though the proton is much more gigantic than the electron, it was as it was including a charge of e.

Thus, impartial particles continuously bear the same number of protons and electrons.

JJ Thomson is the undisputed pioneer of the electron. Be that as it may, despite all those tests he performed on it, he might as it was overseen getting the electron’s charge to mass proportion.

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Answer:

b

Explanation:

The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.

Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.

The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.

Therefore, the correct option is B.

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Answer:

The system has parts that sense the amount of output, allows negative feedback to control a system

Explanation:

Renewable energy is energy from sources that are naturally replenished such as wind, sun, water, and geothermal heat.

The most commonly used source of renewable energy across the globe is solar energy. Solar energy is used in a variety of ways including solar-thermal energy for heating, photovoltaic panels for electricity, and solar-powered water desalination systems. Solar energy is abundant, renewable, and widely available and is becoming increasingly cost-effective compared to other sources of energy.

Additionally, solar energy is considered a clean, non-polluting energy source. Solar energy is currently used in many countries around the world, including the United States, China, India, Japan, Germany, and France. With the increased use of solar energy, renewable energy is becoming an important part of the global energy mix.

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Particle moves from point a to point b in direction of increasing electric potential, and potential difference between point a and point b is positive.

Electric force is conservative, so work done by electric force is equal to change in potential energy. We know that ΔK = 1.12×10−18 J, and since the particle is initially at rest, its initial kinetic energy is zero. 1.12×10−18 J = -ΔU or ΔU = -1.12×10−18 J

Since electric force work on particle as it moves from point a to point b, the electric potential at point b is higher than point a. Therefore, particle moves from point a to point b in direction of increasing electric potential.

ΔV = \(Vb - Va\)

ΔV = \(Vb - Va > 0\)

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A modulo-24 counter circuit needs at least five D flip-flops to count up to 24.

A modulo-24 counter circuit needs at least 5 D flip-flops. A D flip-flop, also known as a data or delay flip-flop, is a type of flip-flop that stores the value of the data input.

In a modulo-n counter, the counter's output will change state only when n pulses have been received. In other words, the counter cycles through n states before returning to its original state. For a modulo-24 counter, this implies that there will be 24 states before it repeats the original state.

The state diagram of the modulo-24 counter can be represented as follows:As a result, 24 is equivalent to 11000 in binary. Since there are five digits in 11000, the modulo-24 counter will require at least five D flip-flops.The main answer is that a modulo-24 counter circuit needs at least 5 D flip-flops.

In digital electronics, a counter circuit is used to generate binary numbers using a clock pulse. A counter circuit is a collection of flip-flops that are connected together to form a sequential circuit.

A sequential circuit is a circuit in which the output is dependent on the input and the state of the circuit. There are two types of sequential circuits: synchronous and asynchronous.In synchronous sequential circuits, the output is dependent on the input and the state of the circuit, and the clock is used to synchronize the operation of the flip-flops. The clock pulse controls the operation of the flip-flops.

The flip-flops are triggered at the rising or falling edge of the clock pulse.In asynchronous sequential circuits, the output is dependent on the input and the state of the circuit, but the clock is not used to synchronize the operation of the flip-flops. Instead, the flip-flops are triggered by the output of other flip-flops or external signals.In a counter circuit, the number of flip-flops required depends on the modulus of the counter.

The modulus is the number of states in the counter. For example, a modulus-16 counter has 16 states. A modulus-24 counter has 24 states. A modulus-32 counter has 32 states.A D flip-flop is a type of flip-flop that stores the value of the data input. In a counter circuit, the D flip-flops are used to store the count. The output of the counter is taken from the outputs of the flip-flops.

The conclusion is that a modulo-24 counter circuit needs at least five D flip-flops to count up to 24.

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Answer:

2.331

Explanation:

It just the change of Energy from potential (PE) to kinetic (KE)

PE on A = PE on B + KE on B + friction works (Wf)

mg(ha) = mg(hb) + ½mv² + Wf

35 * 9.8 * 1.5 = 35 * 9.8 * 0.8 + ½ * 35 * v² + 145

514.5 = 274.4 + 17.5v² + 145

514.5 - 274.4 - 145 = 17.5v²

17v² = 95.1

v² = 5.434

v =√5.434 = 2.331 m/s

Given:

The initial height of the ball, h=1.6 m

The initial speed of the ball, u=14 m/s

To find:

a) The time of flight of the ball.

b) The range of the ball.

Explanation:

As the ball is thrown horizontally, the ball will have no vertical component of the initial velocity. The velocity of the ball is completely horizontal.

Thus the vertical component of the initial velocity of the ball is u_y=0 m/s.

The horizontal component of the initial velocity of the ball is u_x=u=14 m/s.

a)

From the equation of motion,

Where g is the acceleration due to gravity and t is the time of flight of the ball.

On substituting the known values,

b)

The range of the ball is given by,

On substituting the known values,

Final answer:

a) The time of flight of the ball is 0.57 s

b) The range of the ball is 7.98 m

Answer:

c. mandible

Explanation:

Answer:

Explanation:

To find how long it took we use the formula

\(t = \frac{d}{v} \\ \)

d is the distance

v is the velocity

From the question we have

\(t = \frac{30}{15} \\ \)

We have the final answer as

Hope this helps you

Answer:

His average speed is

\( \frac{64km}{4h} = {16kmh}^{ - 1} \)

The term cell is incorrect because, the average voltage of a cell is 3.40 V and as already mentioned in question, the volt of source is 18 V, so cell couldn't be the appropriate word, actually the source is battery.

Now, the source is most likely related to cell because a battery which is the source here, is made up of a "group of cell".

The magnitude of the work done by the student can be calculated using the formula \(W = Fd\), where W represents work, F represents force, and d represents distance. Given that the student exerts a horizontal force of 30.0 N and pushes the box at a distance of 3.0 m, we can determine the magnitude of the work done.

The formula for calculating work is given by W = Fd, where W is the work done, F is the force applied, and d is the distance covered. In this case, the student exerts a horizontal force of 30.0 N and pushes the box at a distance of 3.0 m.

To calculate the magnitude of the work done, we substitute the given values into the formula: W = (30.0 N)(3.0 m) = 90.0 N·m.

The unit of work is the joule (J), which is equivalent to a Newton-meter (N·m). Therefore, the magnitude of the work done by the student is 90 J.

Thus, the correct answer is 90 J.

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Answer:

As it revolves around a planet

Explanation:

Earth has a gravitational force right. Well, they have different types of forces as well including centripetal force. Centripetal acceleration will be experienced by an object or a space probe when it is in a circular motion. This happens when a dark mater revolves around another darkmater in this case earth.

Answer:

The correct answer is A. :)

Explanation:

Edge 2021

If a source of sound is traveling toward you, the speed of the sound waves reaching you is higher than the speed the sound waves would have had if the source were stationary.

The speed of sound waves in a medium is determined by the properties of the medium itself, such as its density and elasticity. In general, sound waves travel at a specific speed in a given medium, regardless of the motion of the source.

However, when the source of sound is in motion, there is an additional component to consider: the relative motion between the source and the observer. This relative motion affects the perceived frequency of the sound waves, known as the Doppler effect.

If the source of sound is moving towards the observer, the sound waves get compressed, resulting in a higher frequency and shorter wavelength. As a result, the speed of the sound waves relative to the observer appears higher than it would be if the source were stationary.

It's important to note that the actual speed of sound in the medium remains constant. It is the perceived speed or apparent speed of the sound waves reaching the observer that is affected by the motion of the source.

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This inequality tells us that the right side of the equation must be less than or equal to zero for the projectile to escape the Earth's gravitational pull.

To find the equation for the velocity of the projectile (v) with respect to height (x), we can differentiate the given equation with respect to time (t) using the chain rule.

Given:

x'' = - (gR²)/(x²)

Let's denote the derivative with respect to time.

Differentiating both sides of the equation with respect to time (t), we have:

x'' = d²x/dt²

v' = d²x/dt²

Now, apply the chain rule. Let u = x(t).

v' = d²x/dt² = d(du/dt)/dt = d²u/dt²

Now, we need to find the expression for d²u/dt²

Since x = u, we can rewrite the original equation as:

u'' = - (gR²)/(u²)

Substituting this equation into our previous expression:

v' = d²u/dt² = - (gR²)/(u²)

Therefore, the equation for the velocity of the projectile (v) with respect to height (x) is:

v' = - (gR²)/(x²)

Now, let's find an inequality for the escape velocity. At a certain height xmax, the velocity is v = 0. To escape the Earth's gravitational pull, the projectile must have a velocity greater than or equal to zero at an infinite height (as it approaches infinity). This means that the velocity should be non-negative at all heights.

v ≥ 0

Substituting the equation for v' we derived earlier:

(gR²)/(x²) ≥ 0

Since g, R, and x² are positive values, divide both sides of the inequality by -1 to change the direction of the inequality:

(gR²)/(x²) ≤ 0

This inequality tells us that the right side of the equation must be less than or equal to zero for the projectile to escape the Earth's gravitational pull.

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Sally drove from New York to Washington and back again. The distance between New York and Washington is 490.91 miles.

The average speed is = Distance/time,

x/50 + x/60 = 18

6x/300 + 5x/300 = 18

11x / 300 = 18

11x = 18 × 300

11x = 5400

x = 5400 / 11

x = 490.91 Miles.

Hence, the distance between New York and Washington is 490.91 miles.

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Answer:the super villain would have the ability to control electricity and could take any Metal object or weapons that anyone points at him because he is magnetic

Explanation:

The free metal electrons in a wire collide with the particles transporting the charge through the wire.

Strong metallic connections keep the constituent parts of a metal together. The particles are arranged in a predictable pattern and are close together. The outside electrons of metal atoms are loose, creating a "sea" of delocalized or free negative charge around the densely packed positive ions.

Hence, the flow of charged particles or charge carriers is what constitutes electric current. Any charged particle, such as an electron, proton, or ion, can serve as the charge carrier. In an electric circuit, electrons typically carry the charge.

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The Nernst Equilibrium Potential is the potential energy (in mV) when an ion is in electrical equilibrium. The correct option is C.

The Nernst equilibrium potential is a theoretical membrane potential at which the electrical gradient of an ion is precisely counterbalanced by the opposing chemical gradient. For the ion, this means that there is no net flux of the ion through the membrane, and it is at equilibrium.

As a result, this concept defines the voltage at which ion movement would be equal if there were no other forces opposing the movement. For a single ion, the Nernst equilibrium potential may be computed utilizing the following formula:

E ion = (RT/zF) * ln([ion]outside/[ion]inside)

where E ion  represents the Nernst equilibrium potential for an ion, R is the gas constant, T is temperature (in Kelvin), z is the charge of the ion, F is Faraday's constant, and [ion]outside/[ion]inside represents the ion concentration ratio outside/inside the cell.

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By doubling the distance from the wire, the magnetic field strength decreases by a factor of four. Therefore, the magnetic field at 4 cm would be 2 μT.

The magnetic field at a distance of 4 cm from a current-carrying wire can be determined using the principle of inverse square law. By doubling the distance from the wire, the magnetic field strength decreases by a factor of four. Therefore, the magnetic field at 4 cm would be 2 μT.

According to the principle of inverse square law, the magnetic field strength decreases as the distance from the current-carrying wire increases. In this case, the magnetic field at a distance of 2 cm is given as 8 μT. When the distance is doubled to 4 cm, the magnetic field strength is expected to decrease by a factor of four.

Mathematically, we can represent this relationship as B1/B2 = (r2/r1)^2, where B1 and B2 are the magnetic field strengths at distances r1 and r2, respectively.

Rearranging the equation, we have B2 = B1 * (r1/r2)^2.

Plugging in the given values, we find B2 = 8 μT * (2 cm/4 cm)^2. Simplifying further, B2 = 8 μT * (1/2)^2 = 8 μT * 1/4 = 2 μT.

Hence, the magnetic field at a distance of 4 cm from the wire is 2 μT. By doubling the distance, the magnetic field strength decreases to one-fourth of its initial value due to the inverse square law relationship.

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The force that will cause the given torque on the see-saw is 100 N.

The given parameters:

The force that will cause the given torque on the see-saw is calculated as follows;

τ = Fr

\(F = \frac{\tau}{r} \\\\F = \frac{200}{2} \\\\F = 100 \ N\)

Thus, the force that will cause the given torque on the see-saw is 100 N.

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Hi there!

We can begin by calculating the acceleration of the system:

∑F = ma

m = sum of the mass of both blocks

Solve for acceleration:

∑F/m = a

30/(6 + 9) = 2 m/s²

On the 6 kg block, the tension is equivalent to the net force:

∑F = T

Since we know that the 6kg is accelerating at 2 m/s², we can solve for tension:

∑F = T = ma

T = 6 · 2 = 12 N

Given data

*The half-life of iodine-131 is t = 8.07 days

*The amount of quantity left is N = 0.25 g

*The number of days is T = 40.35 days

The expression for the radioactivity decay is given as

Substitute the values in the above expression as

Answer:

See below

Explanation:

40.35 days / (8.07 day per half life) = 5 half lives

.25 = x ( 1/2)^5

.25 / ( 1/2)^5 = x = 8 gm originally

The answer to the provided question is that the spring scale's force constant is 1225 N/m.

The word "force" seems to have a particular definition in science. At this level, calling a force a shove or a pull is entirely appropriate. A factor is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both fascinating creatures and non-living objects in the concept of a force.

Given:

Extension of the spring, x = 8.6 cm

Mass of the load, m = 11.2 kg

By using Hook's law, the spring constant can be calculated as follows:

mg = kx

k = mg/x

k = 11.2*9.8/0.086

k = 1276.27 N/m

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Basically, a measurement of an object's torque is 12 kgm², resistance to a change in its state of motion is what a is having constant value.

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