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marishachu [46]
2 years ago
14

A fly with a mass of 0.0025 kg flies at a rate of 20.0 m/s. What is the kinetic energy of the fly?

Physics
2 answers:
tamaranim1 [39]2 years ago
5 0
KE = 0.5mV^2 = 0.5 * 0.0025 * (20)^2 = 
<span>0.5 Joules.</span>
Andreas93 [3]2 years ago
3 0

Answer: .5 or .50 joules

Explanation:

i got it right in my quiz

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marishachu [46]
Something stopped the force and was able to recreate the same amount of force to send it back to her. Example: A pole
6 0
3 years ago
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. A student claims that if lighting strikes a metal flagpole, the force exerted by the Earth’s magnetic field on the current in
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Answer:

Explanation:

Given that, current generated from lightning range from

10⁴ A < I < 10^5 A

We know that,

The magnetic force is given as

F = iLB

The magnetic field on the earth surface is

B = 10^-5 T

So, let assume the worst case of a 15m flag pole

L = 15m

Then,

F = iLB

F = 10^5 × 10 × 10^-5

F = 15 N

Therefore, 15N is fairly strong so it will come to the material that was use for the material of the flag pole.

Therefore, it is possible that the student is right depending on the material of the flag pole.

7 0
3 years ago
A golf club hits a stationary 0.05kg golf ball with and average force of 5.0 x 10^3 newtons accelerating the ball at 44 meters p
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Answer: The magnitude of impulse imparted to the ball by the golf club is 2.2 N seconds

Explanation:

Force applied on the golf ball = 5.0\times 10^3 N

Mass of the ball = 0.05 kg

Velocity with which ball is accelerating = 44 m/s

Time period over which forece applied = t

f=ma=\frac{m\times v}{t}

t=\frac{0.05 kg\times 44m/s}{5.0\times 10^3 N}=4.4\times 10^{-4} seconds

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The magnitude of impulse imparted to the ball by the golf club is 2.2 N seconds

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Answer:

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for molly :

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Explanation:

brainliest plz

8 0
2 years ago
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