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frez [133]
3 years ago
12

A projectile is launched at an angle into the air at velocity v and angle 0. Determine its vertical acceleration.

Physics
1 answer:
chubhunter [2.5K]3 years ago
7 0

The acceleration due to gravity only points downward with magnitude g. The angle of the projectile doesn't matter.

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I think it is "A'' 'It moves along straight lines in air and changes direction when it enters water.
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A 32.5 g cube of aluminum initially at 45.8 °C is submerged into 105.3 g of water at 15.4 °C. What is the final temperature of b
lakkis [162]

Answer:

T = 17.26 ^oC

Explanation:

At thermal equilibrium we have heat given by aluminium must be equal to the heat absorbed by the water

so we will have

Q_1 = Q_2

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6 0
3 years ago
If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?
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A 12-kg piece of metal displaces 1.6 L of water when submerged. Part A Find its density. Express your answer to two significant
Tatiana [17]

Answer:

ρ = 7500 kg/m³

Explanation:

Given that

mass ,m = 12 kg

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Therefore V= 0.0016 m ³

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Now by putting the values in the above equation

\rho=\dfrac{12}{0.0016}\ kg/m^3

ρ = 7500 kg/m³

Therefore the density of the metal piece will be  7500 kg/m³.

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3 years ago
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