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Zolol [24]
2 years ago
12

A fastpitch softball player can pitch the ball horizontally at 28.6 m/s (64 mph). If the distance from the pitcher's mound to ho

me plate is 14 meters, how much time does it take the softball to get there? (5 points)
Physics
1 answer:
Dima020 [189]2 years ago
7 0

Answer:

64-14=50

Explanation:

try 64 - 14 and get your answer and its 50

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2 years ago
A proton is released from rest at the positive plate of a parallelplatecapacitor. It crosses the capacitor and reaches the negat
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Answer:

2.1406 ×10^6 m/sec

Explanation:

we know that energy is always conserved

so from the law of energy conservation

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here V is the potential difference  

we know that mass of proton = 1.67×10^{-27} kg

we have given speed =50000m/sec

so potential difference V=\frac{\frac{1}{2}\times 1.67\times 10^{-27}50000^2}{1.6\times 10^{-19}}=13.045

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4 0
3 years ago
In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 1850 J of work is done on the gas
hammer [34]

Answer:

The value of change in internal energy of the gas = + 1850 J

Explanation:

Work done on the gas (W) =  - 1850 J

Negative sign is due to work done on the system.

From the first law  we know that Q = Δ U + W ------------- (1)

Where Q = Heat transfer to the gas

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Since it is adiabatic compression of the gas so heat transfer to the gas is zero.

⇒ Q = 0

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This is the value of change in internal energy of the gas.

7 0
3 years ago
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