PHYSICS HIGH SCHOOL

8. John has to hit a bottle with a ball to win a prize. He throws a 0.4 kg ball with a velocity of 18 m/s. It hits a 0.2 kg bottle, and the bottle flies forward at 25 m/s. How fast is the ball traveling after hitting the bottle?

Answers

Answer 1
Answer:

Answer: The velocity of the ball the ball after collision is 5.5 m/s.

Explanation:

John hitting the bottle which is at rest means this is an Elastic collision.

Mass of the ball= M_1=0.4 kg

Velocity of ball before collision = U_1=18m/s

Velocity of ball after collision =V_1

Mass of the bottle= M_2=0.2 kg

Velocity of bottle before collision = U_2=0 m/s(bottle is at at rest)

Velocity of bottle after collision =V_2=25 m/s

M_1V_1+M_2V_2=M_1U_1+M_2U_2

V_1=((0.4 kg* 18 m/s+0.2 kg* 0m/s)-0.2 kg* 25m/s)/(0.4)

V_1=5.5 m/s

The velocity of the ball the ball after collision is 5.5 m/s.
Answer 2
Answer: I hope it helped you.

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Answers

The voltage ratio of a transformer is nominally equal to the turns ratio.

If you connect 120 volts AC to one side of the 1:10 transformer, you'll
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Answer:

the answer on edge is 48

Explanation:

     

A gas has an initial volume of 2.5 L at a temperature of 275 K and a pressure of 2.1 atm. The pressure of the gas increases to 2.7 atm, and the temperature of the gas increases to 298 K.The final volume of the gas, rounded to the nearest tenth, is.

Answers

The following information are given:
V1 = 2.5L
T1 = 275K
P1 = 2.1 atm
T2 = 298K
P2 = 2.7 atm
V2 = ?
The formular for solving the equation is: P1V1T1 = P2V2T2
V2 = P1V1T1/P2VT2
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Its 2.1, I just took the test, the verified answer is wrong.

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B. Wind is a nonrenewable resource because it can't be used up, but coal is a renewable resource because it will eventually run out.

C. Both wind and coal are renewable resources because they will never run out.

D. Both wind and coal are nonrenewable resources because they will eventually run out.

Answers

i believe the answer is A
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Hope this helps.... Stay in contact with brainly, Bye! :)

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Answers

Answer:

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Explanation:

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Answers

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Answers

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