Answer:
D
Explanation:
Since the apple is 641kg/m3 and water is 1000kg/m3 then the apple will float. Light materials float on top of the water similar to how oil is always on top of the water layer. Since the two are close so the apple will partially float
Answer:

Explanation:
Given that,
The velocity of an astronaut in a circular path, v = 16 m/s
The radius of the accelerator, r = 8 m
We need to find his centripetal acceleration. The formula that is used to find the centripetal acceleration is given by :

So, the required centripetal acceleration is
.
The specific heat capacity of the block is 
Explanation:
As the block is placed into the water, heat energy is transferred from the water (which is at higher temperature) to the block (which is at lower temperature), until the block and the water are in thermal equilibrium (= same temperature).
Therefore, we can write:

Where
is the heat energy released by the water, where
is the mass of the water
is the water heat specific capacity
is the initial temperature of the water
is the temperature at equilibrium
Substituting,

Now we can write the heat energy absorbed by the block as

where
is the mass of the block
is the specific heat capacity of the block
is the initial temperature of the block
And solving for
,

Learn more about specific heat capacity:
brainly.com/question/3032746
brainly.com/question/4759369
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I solved it and got 374.2N so i would put 375N
sorry i didn’t get any of the ones on there, i probably made a mistake.
Solar energy is the most abundant energy resource on earth.