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Which has more momentum: a 3 kg sledgehammer swung at 1.5 m/s OR a 4 kg sledgehammer swung at 0.9 m/s? SHOW YOUR WORK

Answer:

C₁ = 34.8 μF

C₂ = 0.2 μF

Explanation:

When the capacitors are connected in series their resultant capacitance is given by the formula:

Cs = 1/C₁ + 1/C₂

where,

Cs = Series equivalent capacitance = 4.8 μF

C₁ = Capacitance of 1st Capacitor

C₂ = Capacitance of 2nd Capacitor

Therefore,

4.8 μF = 1/C₁ + 1/C₂

(4.8 μF)(C₁ C₂) = C₁ + C₂   --------------- equation 1

When the capacitors are connected in parallel their resultant capacitance is given by the formula:

Cp = C₁ + C₂

where,

Cp = Parallel equivalent capacitance = 35 μF

Therefore,

35 μF = C₁ + C₂   -------------- equation 2

solving equation 1 and equation 2 simultaneously, we get:

C₁ = 34.8 μF

C₂ = 0.2 μF

Answer:

B.lenses bounce light from their surface, mirrors do not

Answer:

C

Explanation:

edge 2020... Using elimination it's the only one that makes sense.

The statement third "an increase in the distance between the objects causes a greater change in the gravitational force than the same increase in mass" is correct.

The gravitational force is a force that attracts all mass-bearing objects. The gravitational force is referred to as attractive because it always strives to pull masses together rather than pushing them apart.

As we know, the gravitational force is given by:

\(\rm F = \dfrac{Gm_1m_2}{r^2}\)

Where, G is the gravitational constant.

m1 and m2 are masses.

r is the distance between the masses.

From the data given in the table, shows that:

The gravitational force is indirectly proportional to the square of the distance.

Thus, the statement third "an increase in the distance between the objects causes a greater change in the gravitational force than the same increase in mass" is correct.

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Answer:

Hello There!!

Explanation:

The answers are possibly:

1.Work

2.Increases

3.D.ecreases

hope this helps,have a great day!!

~Pinky~

\(\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}\)

1. Work

2. Increases

3. Decreases

Answer:

Potential energy

Explanation:

When the string is released, the potential energy is converted to kinetic energy in the movement of the arrow. The string pushes the arrow out and is the driving force behind the motion.

Answer:

1. B. Kinetic energy is transferred from Terry's foot to the soccer ball.

2. A. A baseball bat strikes a baseball.

3. A. 173.28J

4. D. Kinetic energy is transferred from the racket to the ball.

Explanation:

I took the quiz and got 100%

Answer:

1. Kinetic energy is transferred from Terry's foot to the soccer ball.

2. A baseball  bat stricks a baseball

3. 173.28

4. kinetic energy is transferred from the racket to the ball

5. 1,102.5 J

remember to keep the decimal on the last one

Explanation: They added another question so I decided to give the answer to those who had it.

Answer:

235 km/s2

Explanation:

cus mall pods carrying four passengers would accelerate at 2.5 m/s2 until reaching a speed of 330 m/s.

This question is about the acceleration and braking calculations for pods proposed by The Boring Company to transport people between Los Angeles and San Francisco.

Physics - High School

The subject of this question is Physics, specifically dealing with the concept of motion and acceleration. The question presents a scenario where The Boring Company proposes transporting people between Los Angeles and San Francisco in underground tubes using small pods. The question asks for the acceleration and braking calculations for the pods.

Acceleration:

Braking:

By finding the time taken for acceleration and braking, you can determine the total travel time for one pod.

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The time elapses between the instant the fan sees the batter hit the ball and the moment the fan hears the sound will be 6.5333333 x 10⁷ sec.

The given data:

Time is referred as the ratio of distance and speed of light. which can be expressed as:

t=d/c

Where, t is time and c is speed.

Distance =196m

c =speed of light .

Put the values of given data in given formula:

c= speed of light = 3 x 10⁸m/s

t= 196/[3 x 10⁸]

=6.5333333 x 10⁷ sec

Therefore, the time will be 6.5333333 x 10⁷ sec

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Answer:

Cyberpunk has worst Physics

Answer:

Explanation: The moon of the Earth is much lighter in mass than the planet itself. In addition to being smaller than Earth, the Moon is also only approximately 60% as dense. A human weighs less on the Moon because there is less gravitational attraction there than there is on Earth.

Moon has lesser mass as conpared to earth, therefore gravitational force exerted by moon on any object is lesser than that of gravitational force exerted by earth on the same object, hence we can say that astronauts weight less on moon, i.e approximately 1/6 th of their weight on earth.

Answer:

grid or metal sheets or metal foams

Explanation:

Electric and magnetic fields are generated in electrical circuits that often cause interference in the measurements made.

To avoid these interferences, shields are generally used for the electric fields, Farday boxes are used, which are metal grids connected to earth.

For the magnetic field there is also a grid or metal sheets or metal foams,

It should be noted that the gaps in the screening must be smaller than the wavelength of the radiation to be screened.

The velocity of the man and boat after the jump is 2.57 m/s.

The rate at which the position of an item changes with respect to time is expressed as a vector quantity called velocity. It is a way to gauge how fast and which way an object is moving. In other terms, velocity is the rate at which an object is moving in a particular direction.

The concept of conservation of momentum, which asserts that the overall momentum of a closed system stays constant in the absence of external forces, must be used to solve this issue.

The system's overall momentum is initially: before the man gets onto the boat.

p1 = m1v1 + m2v2

where m1 is the man's mass, v1 is his starting speed (3 m/s horizontally), m2 is the boat's mass, and v2 is the boat's speed (2 m/s away from the pier).

p1 = (60 kg)(3 m/s) + (80 kg)(2 m/s)= 360 kg m/s

The two objects merge into a single system when the man jumps onto the boat, and their combined motion is:

p2 = (m1 + m2) v

where v represents the speed of the boat and guy after the jump.

We can equate the two expressions and find v since p1 = p2 follows the law of conservation of momentum:

P1 equals P2 (60 kg)(3 m/s) + (80 kg)(2 m/s) = (60 kg + 80 kg) v

360 kg m/s = 140 kg v

v = 2.57 m/s

As a result, the man's and boat's final speed after the jump is 2.57 m/s.

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The density is the ratio of mass to volume of a substance.

The density bottle is used to obtain the density of  substance by measuring the volume of the fluid displaced.

If the mass of copper turnings are previously weighed and known, the volume of the fluid displaced in the density bottle is the volume of the copper turning.

Hence;

Density = mass/ volume

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Answer:

Freedom of opportunity

Freedom of worship

Freedom of speech

Freedom of association

Freedom to work

Freedom to learn

Explanation:

Answer:

can u show question 1?

Explanation:

Answer:

adrenaline cortisol

Explanation:

The specific heat capacity of silver is {c} = 0.24 J/(kg °C).

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 °C. Its units are J/(kg °C).

Given is that 55g of silver absorbs 197.9 joules of heat and the temperature rises by 15 °C.

Mathematically, we can write the specific heat capacity as -

Q = mcΔT

where -

{Q} → heat energy

{m} → mass

{c} → specific heat capacity

{ΔT} → change in temperature

We can write -

Q = mcΔT

197.9 = 55 x (15 - 0) x c

197.9 = 55 x 15 x c

c = 197.9/825

{c} = 0.24 J/(kg °C)

Therefore, the specific heat capacity of silver is {c} = 0.24 J/(kg °C).

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Answer:

Gravitational potential energy is mass of the object times the gravitational constant times the height of the object:

U = mgh (I will use 10 for the gravitational constant but you can use 9.8 or 9.81 or something even more accurate)

U = 280

The gravitational potential of the object is 280 joules

Answer:

Explanation:

An N-type semiconductor is a type of material used in electronics. It is made by adding an impurity to a pure semiconductor such as silicon or germanium. The impurities used may be phosphorus, arsenic, antimony, bismuth or some other chemical element. They are called donor impurities

The horizontal distance travelled by the car in the given time period of 13 seconds is determined as 168.3 m.

The horizontal distance travelled by the car is calculated as follows;

s = ut + ¹/₂acosθ(t²)

where;

s = 0  +  ¹/₂(2) x cos(5.2) x (13)²

s = 168.3 m

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Explanation:

Moral duties are the duties performed by the people on the basis of humanity and moral values. The following are some of the moral duties :

Hope I helped ! ♡

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Answer:

Explanation:

A) The output force required to lift a 15 kg object would be equal to the weight of the object, which is given by:

Output force = Weight of object = m * g

where m is the mass of the object and g is the acceleration due to gravity. Assuming that g is equal to 9.81 m/s^2, we have:

Output force = 15 kg * 9.81 m/s^2 = 147.15 N

Therefore, the output force required to lift a 15 kg object would be 147.15 N.

B) In this case, the input force is the force that you are pushing down with the lever, which is given as 20 N.

C) The mechanical advantage of the ramp is given by the ratio of the output force to the input force. In this case, the output force is the weight of the object (40 N) and the input force is the force that you are pushing with (10 N). Therefore, the mechanical advantage of the ramp would be:

Mechanical advantage = Output force / Input force = 40 N / 10 N = 4

So, the ramp multiplies your force by a factor of 4.

Note that in all of these calculations, we have assumed that the system is ideal and that there are no losses due to friction or other factors. In practice, these losses will reduce the mechanical advantage of the system and make it more difficult to lift or move objects.

Answer:

The frequency of light can be calculated using the formula:

`c = λv`

Where `c` is the speed of light in a vacuum, `λ` is the wavelength of light, and `v` is the frequency of light.

The speed of light in a vacuum is `3.00 × 10^8 m/s`.

To convert the wavelength from nanometers to meters, we need to divide by `1 × 10^9`.

Thus, the frequency of light with a wavelength of 655 nm is:

`v = c/λ`

`v = (3.00 × 10^8 m/s)/(655 × 10^-9 m)`

`v = 4.58 × 10^14 Hz`

Therefore, the frequency of light with a wavelength of 655 nm is `4.58 × 10^14 Hz`.

Similarly, the frequency of light with a wavelength of 515 nm is:

`v = c/λ`

`v = (3.00 × 10^8 m/s)/(515 × 10^-9 m)`

`v = 5.83 × 10^14 Hz`

Therefore, the frequency of light with a wavelength of 515 nm is `5.83 × 10^14 Hz`.

Finally, the frequency of light with a wavelength of 475 nm is:

`v = c/λ`

`v = (3.00 × 10^8 m/s)/(475 × 10^-9 m)`

`v = 6.32 × 10^14 Hz`

Therefore, the frequency of light with a wavelength of 475 nm is `6.32 × 10^14 Hz`.

So, the frequency of light with a wavelength of 655 nm is `4.58 × 10^14 Hz`, the frequency of light with a wavelength of 515 nm is `5.83 × 10^14 Hz` and the frequency of light with a wavelength of 475 nm is `6.32 × 10^14 Hz`.

The boat must have moved, despite not being seen to move, because its relative position to the dock has changed. This phenomenon is known as relative motion .

Everything is always in motion, but the way we perceive it depends on our frame of reference.

In this scenario, the dock was the frame of reference for the initial position of the boat. When the boat moved to the cove, its position relative to the dock changed, and the dock was no longer an appropriate frame of reference. The boat's motion is now relative to the cove instead.

It is important to note that relative motion depends on the chosen frame of reference. If we were to choose the boat as the frame of reference, then it would be the dock that appears to move, not the boat. This is because motion is always relative to a chosen frame of reference.

In conclusion, the boat must have moved because its position relative to the dock changed. The concept of relative motion reminds us that motion is always relative to a chosen frame of reference, and that the way we perceive motion depends on our chosen frame of reference.

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Answer:

9,600 thank u

Explanation:

because blah blah blah

If the light spring is stretched with a spring constant of 102 N/m then, the elongated length of the spring will be 0.48 meters.

Spring constant is the force which is needed to stretch or press a spring, divided by the distance that the spring gets longer or shorter.

Given,

Spring constant of light spring k = 102.0N/m

mass of balloon m = 1.75g = 1.75 × 10⁻³ Kg

Density of helium (He) = 0.179 kg/m

Density of air = 1.204 kg/m³

Volume of balloon/helium V = 4.92 m³

We have 3 forces acting on the spring, two directed downward, one upward. Downward forces are the weight of the balloon and weight gas inside it. of the helium

Upward force is the buoyant force. helium is of lesser density. air.

Now, Fnet = mg + e(He) vg - Ve(air)g

Fnet = g[m + v(e(He)-e(air))]

Fnet = 9.8 (1.75 × 10⁻³+ 4.92(0.179-1.204))

Fnet = 9.8(0.00175 + (-5.04125))

Fnet = 9.8 × -5.04125

Fnet = -49.40 N

The elongation of the spring = IFnetI/ K

Length = 49.40/ 102

Length of spring = 0.48 meters

Therefore, the elongated length of the spring will be 0.48 meters.

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Answer:

1) \(T_{A} = 2\pi\cdot \sqrt{\frac{l}{g} }\), 2) \(T_{B} \approx 1.137\cdot T_{A}\), where \(T_{A} = 2\pi\cdot \sqrt{\frac{l}{g} }\).

Explanation:

1) Pendulum A is a simple pendulum, whose period (\(T_{A}\)) is determined by the following formula:

\(T_{A} = 2\pi\cdot \sqrt{\frac{l}{g} }\) (1)

Where:

\(l\) - Length of the massless bar.

\(g\) - Gravitational acceleration.

2) Pendulum B is a physical pendulum, whose period (\(T_{B}\)) is determined by the following formula:

\(T_{B} = 2\pi \cdot \sqrt{\frac{I_{O}}{m\cdot g\cdot l} }\) (2)

Where:

\(m\) - Total mass of the pendulum.

\(g\) - Gravitational acceleration.

\(l\) - Length of the uniform bar.

\(I_{O}\) - Moment of inertia of the pendulum with respect to its suspension axis.

The moment of inertia can be found by applying the formulae of the moment of inertia for a particle and the uniform bar and Steiner's Theorem:

\(I_{O} = \frac{1}{2} \cdot m\cdot l^{2}+\frac{1}{24}\cdot m\cdot l^{2} + \frac{3}{4}\cdot m\cdot l^{2}\)

\(I_{O} = \frac{31}{24}\cdot m\cdot l^{2}\) (3)

By applying (3) in (2) we get the following expression:

\(T_{B} = 2\pi \cdot \sqrt{\frac{\frac{31}{24}\cdot m \cdot l^{2} }{m\cdot g \cdot l} }\)

\(T_{B} = 2\pi \cdot \sqrt{\frac{31\cdot l}{24\cdot g} }\)

\(T_{B} = \sqrt{\frac{31}{24} } \cdot \left(2\pi \cdot \sqrt{\frac{l}{g} }\right)\)

\(T_{B} \approx 1.137\cdot T_{A}\)

1. The period of pendulum A for small oscillations is  

\(T_A=2\pi\sqrt{\dfrac{L}{g}}\)

2. The period of pendulum B for small oscillations.

\(T_B=1.137.T_A\)

Simple harmonic motion is the periodic motion or back and forth motion of any object with respect to its equilibrium or mean position. The restoring force is always acting on the object which try to bring it to the equilibrium.

1) Pendulum A is a simple pendulum, whose period () is determined by the following formula:

\(T_A=2\pi\sqrt{\dfrac{L}{g}}\)

Where:

l - Length of the massless bar.

g - Gravitational acceleration.

2) Pendulum B is a physical pendulum, whose period () is determined by the following formula:

\(T_A=2\pi\sqrt{\dfrac{I_o}{mgl}}\) .............................2

Where:

m - Total mass of the pendulum.

g - Gravitational acceleration.

l - Length of the uniform bar.

Io- Moment of inertia of the pendulum with respect to its suspension axis.

The moment of inertia can be found by applying the formulae of the moment of inertia for a particle and the uniform bar and Steiner's Theorem:

\(I_o=\dfrac{1}{2}ml^2+\dfrac{1}{24}ml^2+\dfrac{3}{4}ml^2\)

\(I_o=\dfrac{31}{24}ml^2\)..................................3

By applying (3) in (2) we get the following expression:

\(T_B=2\pi\sqrt{\dfrac{\frac{31}{24}ml^2}{mgl}\)

\(T_B=2\pi\sqrt{\dfrac{31l}{24g}}\)

\(T_B=\sqrt{\dfrac{31}{24}}. (2\pi\sqrt{\dfrac{l}{g}})\)

\(TB=1.137.T_A\)

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