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2 years ago

Does mass affect the final velocity of an object if the object begins with a high initial velocity?

1 answer:

6 0

The speed of a falling object is not affected by the mass of the object ... This means that if both accelerate at the same rate, then the force acting on objects of different ... time and initial velocity and not dependent on the mass of the object at all

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When is thermal equilibrium achieved between two identical objects?

Sindrei [870]

The answer is C hope this helps

3 0

2 years ago

If an object absorbs light energy, its thermal energy __________.

german

D), increases. The object absorbs light energy which in turn (energy is energy) usually involves absorbing heat as well.

8 0

2 years ago

Hello, why do all electromagnetic waves travel at the same speed in vacuum?

Viktor [21]

Answer:

due to the magnetic field

Explanation:

magnetic field is the same in the vacuum

6 0

2 years ago

At noon on a clear day, sunlight reaches the earth\'s surface at Madison, Wisconsin, with an average intensity of approximately

Dmitrij [34]

Intensity of sunlight at given position is defined as power received per unit area

so here we can say

$I = 2 kJ/s*m^2$

area on which photons are received is given as

$A = 4.80 cm^2 = 4.80 * 10^-4 m^2$

now we can find the power received due to sunlight

$P = I*A$

$P = 2* 10^3 * 4.80 * 10^-4$

$P = 0.96 Watt$

now we can say this power is due to photons that strikes on surface of earth

so here we can say

$P = N\frac{hc}{\lambda}$

given here that

$\lambda = 510 nm$

$0.96 = N\frac{6.6 * 10^{-34}* 3 * 10^8}{510*10^{-9}}$

$0.96 = N * 3.88 * 10^{-19}$

$N = \frac{0.96}{3.88*10^{-19}}$

$N = 2.47 * 10^{18}$

so it will strike 2.47 * 10^18 photons on given area per second

3 0

3 years ago

What is specific heat capacity

dedylja [7]

Answer:

Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to a given mass of a material to produce a unit change in its temperature. The SI unit of heat capacity is joule per kelvin. Heat capacity is an extensive property

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2 years ago