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melomori [17]
3 years ago
13

A 0.13 kg ball is moving at 6.6 m/s when it is hit by a bat, causing it to reverse direction and having a speed of 10.3 m/s, Wha

t is the change in the magnitude of the momentum of the ball
Physics
1 answer:
lana66690 [7]3 years ago
3 0

Answer:

Change in momentum = 2.197 kgm/s

Explanation:

Momentum = MV

Initial momentum = MU

Final momentum = MV

Computation:

⇒ Change in momentum = MV - MU

⇒ Change in momentum = M (V - U)

⇒ Change in momentum = 0.13(-10.3 - 6.6)

⇒ Change in momentum = 0.13(16.9)

⇒ Change in momentum = 2.197 kgm/s

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A 10-ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes what
Amanda [17]

Answer:

B 5.0 A .

Explanation:

Hello.

In this case, since we know the charge (1200 C), time (4 min =240 s) and resistance (10Ω) which is actually not needed here, we compute the current as follows:

I=\frac{Q}{t}

Then, for the given data, we obtain:

I=\frac{1200C}{4min}*\frac{1min}{60s}\\\\I=5A

Therefore, answer is B 5.0 A .

Best regards!

4 0
3 years ago
Quentin is playing baseball and is batting. He swings and hits the ball sending it flying to the outfield. Which is greater- the
Bess [88]

Answer:

The force of the ball on the bat is same as the force of the bat on the ball.  

Explanation:

A bat hits the ball and the ball moves to the out filed.

According to the Newton's third law, for every action there is an equal and opposite reaction.

The action and the reaction forces acts on the two different bodies but the magnitude of the force is same.  

As the ball is hitted by the bat, the bat exerts the force on the ball and the same force is exerted on the bat by the ball according to the Newton's third law.

So, the force of the ball on the bat is same as the force of the bat on the ball but the direction of force is opposite.  

5 0
4 years ago
1. Why should you use scientific notation when writing big numbers?
Fynjy0 [20]

Answer:

It helps the answer look clean. It also makes the work easier to work with.

Explanation:

Instead of writing a lot of zeros, all you have to do is add exponents to the number to show how much the decimal moved.

6 0
3 years ago
Since the noble gases are stable (VERY unreactive), oxygen would like to look like one in terms of the number and arrangement of
iogann1982 [59]

Answer:

oxygen gains two electron to attain electron configuration like neon. Oe-²

Explanation:

3 0
3 years ago
A wall, acted upon by a force of 20 N, does not move. The work done on the wall in this process is
jenyasd209 [6]

Answer:

0 (Zero)

Explanation:

Definition of work done states that ,

Work done on an object is the force applied on that object in the direction of Displacement of the object .

means that ,

W = F.dS (Dot product of Force and displacement)

When the wall is acted upon by the force of 20 N , Wall does not move ,

Thus , displacement of the wall is zero.

So, W = 20×0 = 0.

Thus, Work done on the wall is zero.

8 0
3 years ago
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