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svlad2 [7]
3 years ago
5

C is correct just an FYI

Physics
1 answer:
belka [17]3 years ago
3 0

Answer:

Huh?

Explanation:

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If a force of 8 N acts on a mass of 2 kg for a period of 24 seconds, what was the magnitude of the impulse given to the mass?
lyudmila [28]

Answer:

192Ns

Explanation:

The following were obtained from the question:

M = 2kg

F = 8N

t = 24secs

Impulse =?

Impulse = Ft

Impulse = 8 x 24 = 192Ns

5 0
3 years ago
At what time will the interfering waves have an amplitude of zero
stepladder [879]

When the interfering waves have an amplitude of zero the phenomena is called destructive interference.

It occurs when waves come together in such a way that they completely cancel each other out. When two waves interfere destructively, they must have the same amplitude in opposite directions it means that the waves are in 180° different phase from each other.

4 0
3 years ago
Read 2 more answers
A uniform solid disk made of wood is horizontal and rotates freely about a vertical axle at its center. The disk has radius 0.60
Mariulka [41]

Answer:

v = 98.4 m/s

Explanation:

As we know that the total angular momentum of the system is conserved

so here we will have

L_{bullet} + L_{disk} = constant

MvR = (\frac{1}{2}mR^2 + MR^2)\omega

now plug in all data

0.02 v(0.600) = (\frac{1}{2}(1.60)(0.600)^2 + 0.02(0.600)^2)4

0.012 v = 1.18

v = \frac{1.18}{0.012}

v = 98.4 m/s

3 0
3 years ago
A particle of mass m = 4.5 kg has velocity of v = 7 i m/s, when it is at the origin (0,0). Determine the z-component of the angu
Dima020 [189]

Answer:

Explanation:

Momentum P = Mass x Velocity

M = 4.5kg

V = 7m/s

4.5kg x 7m/s

= 31.5xkgm/s

L=IW( Angular momentum) at stationary origin (0,0)

I = 1/2 x Mr^2

L = 1/2 x 4.5x 31.5

L = 70.8kgm/s

At stationary point, (0,0) No coordinate exist

4 0
3 years ago
The diagram below shows a pendulum in motion.
lys-0071 [83]

Answer:

Potential Energy is given as:

P.E = mgh

which means P.E is directly proportional to height 'h'.

Kinetic Energy is given as:

K.E = (1/2)mv²

which means K.E is directly proportional to velocity 'v²'.

Total Energy of Pendulum = K.E + P.E

1. The pendulum has the most potential energy at extreme position because the height is maximum at the extreme position.

2. The pendulum has the least kinetic energy at extreme position because the velocity is zero at extreme position.

3. The pendulum has most kinetic energy at the mean position because the velocity is maximum at this point.

4. The pendulum has the least potential energy at the mean position because the height is minimum.

A rule to remember: The point where K.E is maximum, P.E is zero at this point and vice versa.Potential Energy is given as:

P.E = mgh

which means P.E is directly proportional to height 'h'.

Kinetic Energy is given as:

K.E = (1/2)mv²

which means K.E is directly proportional to velocity 'v²'.

Total Energy of Pendulum = K.E + P.E

1. The pendulum has the most potential energy at extreme position because the height is maximum at the extreme position.

2. The pendulum has the least kinetic energy at extreme position because the velocity is zero at extreme position.

3. The pendulum has most kinetic energy at the mean position because the velocity is maximum at this point.

4. The pendulum has the least potential energy at the mean position because the height is minimum.

A rule to remember: The point where K.E is maximum, P.E is zero at this point and vice versa.Potential Energy is given as:

P.E = mgh

which means P.E is directly proportional to height 'h'.

Kinetic Energy is given as:

K.E = (1/2)mv²

which means K.E is directly proportional to velocity 'v²'.

Total Energy of Pendulum = K.E + P.E

1. The pendulum has the most potential energy at extreme position because the height is maximum at the extreme position.

2. The pendulum has the least kinetic energy at extreme position because the velocity is zero at extreme position.

3. The pendulum has most kinetic energy at the mean position because the velocity is maximum at this point.

4. The pendulum has the least potential energy at the mean position because the height is minimum.

A rule to remember: The point where K.E is maximum, P.E is zero at this point and vice versa.

Explanation:

8 0
3 years ago
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