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Elan Coil [88]
3 years ago
11

What is playing catch? ( in terms of the force of the air interacting with ball )

Physics
1 answer:
Ugo [173]3 years ago
6 0
Playing catch involves the ball moving in one direction in the air when you exert force. When the ball is in air, there is a gravitational force and a little it of backward air resistance until the other person catches it.
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Help ;-;
nasty-shy [4]

Answer:

all qn 1,2,3 have same answer ,. Yes,. hope it helps

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3 years ago
In the illustration of the solar spectrum, the upper left portion of the spectrum shows the __________ visible light.
Usimov [2.4K]
Lowest frequency visible light
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A 1 200-kg car traveling initially at vCi 5 25.0 m/s in an easterly direction crashes into the back of a 9 000-kg truck moving i
sukhopar [10]

Answer:

The velocity of the truck after the collision is 20.93 m/s

Explanation:

It is given that,

Mass of car, m₁ = 1200 kg

Initial velocity of the car, v_{Ci}=25\ m/s

Mass of truck, m₂ = 9000 kg

Initial velocity of the truck, v_{Ti}=20\ m/s

After the collision, velocity of the car, v_{Cf}=18\ m/s

Let v is the velocity of the truck immediately after the collision. The momentum of the system remains conversed.

initial\ momentum=final\ momentum

1200\ kg\times 25\ m/s+9000\ kg\times 20\ m/s=1200\ kg\times 18+9000\ kg\times v

210000-21600=9000\ kg\times v

v=20.93\ m/s

So, the velocity of the truck after the collision is 20.93 m/s. Hence, this is the required solution.

8 0
3 years ago
The charge stored in a parallel plate capacitor is proportional to the _____(potential, current) and across _____ (resistance, c
Aleksandr-060686 [28]

Answer:

The charge stored in a parallel plate capacitor is proportional to the potential, and capacitance across the plates.

Explanation:

The capacitance of a parallel plate capacitor is given by:

C=\frac{Q}{V}

where

Q is the charge stored

V is the potential difference across the capacitor

Re-arranging the formula, we get

Q=CV

From this expression, we see that the charge stored (Q) is proportional to both the potential (V) and the capacitance (C).

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Suppose an automobile has 2000 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?
Varvara68 [4.7K]

The answer should be 8000 J

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4 years ago
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