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k0ka [10]
3 years ago
11

What is a speed and motion ?

Physics
1 answer:
Licemer1 [7]3 years ago
6 0
Velocity is the rate of motion in a specific direction. I'm going that-a-way at 30 kilometers per hour. My velocity is 30 kilometers per hour that-a-way. Average speed is described as a measure of distance divided by time. Velocity can be constant, or it can change (acceleration).
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When a golf ball is hit, it travels at 41 meters per second. The mass of a golf ball is 0.045kg. Calculate the kinetic energy of
Fittoniya [83]

Answer:

  75.645 J

Explanation:

The kinetic energy is related to the mass and velocity by the formula ...

  KE = 1/2mv²

For the given mass of 0.045 kg, and velocity of 41 m/s, the kinetic energy is ...

  KE = 1/2(0.045 kg)(41 m/s)² = 75.645 J

__

The unit of energy, joule, is a derived unit equal to 1 kg·m²/s².

4 0
3 years ago
Why a drop of spirit on the hand feels colder than a drop of water at the same temperature​
brilliants [131]

Answer:

This is because spirit has a lower boiling point when compared to water

Explanation:

spirit has a lower boiling point when compared to water which means it has the capacity to pull more heat from your hand and also it can do this very fast. This is why our hand feels colder.

5 0
2 years ago
If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?
dybincka [34]
M = 4kg
F =8N
a..?

F =m.a
8 = 4.a
a = 2m/s^2
6 0
3 years ago
Read 2 more answers
Which type of wave was produced in the "Waves" lab? A transverse wave B longitudinal wave C surface wave
Leto [7]

Answer: A transverse wave

6 0
3 years ago
6. A resident throws a bag full of trash over the balcony of their third-floor apartment. What will happen to the acceleration o
trasher [3.6K]

The trash bag will gain gain speed in till hitting the ground and passably  exploding on impact of the ground depending on the strength of the trash bag it may rip during the fall.

If this was not what you were looking for please explain what you need in more detail.

6 0
4 years ago
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