E= 0.6
Constant sigma is 5.6704004× 10∧ (-8)
The area is LC = 2× .8 = 1.6m∧2
to convert degrees celcious to Kelvin =303K
The equation is
P = e ? AT∧4.
Then the answer is 460 watts.
The velocity of a car with a mass of 3.1 kg is equal to 6.22 m/s
<u>Given the following data:</u>
- Kinetic energy = 60 Joules
To calculate the velocity of the car:
Mathematically, kinetic energy is calculated by using the formula;
<u>Where:</u>
- K.E is the kinetic energy.
- M is the mass of an object.
- V is the velocity of an object.
Making V the subject of formula, we have:
Substituting the given parameters into the formula, we have;
Velocity, V = 6.22 m/s
Read more: brainly.com/question/23153766
Answer:
option (d)
Explanation:
Acceleration due to gravity on mars = twice the acceleration due to gravity on moon
According to the conservation of energy, the kinetic energy at the time of hitting is totally converted into potential energy at height.
On the surface of moon, let the value of acceleration due to gravity is a and the ball rises upto height h.
So, kinetic energy = Potential energy
1/2 mv^2 = m x a x h ...... (1)
On the surface of mars, the value of acceleration due to gravity is 2a and the ball rises upto height h'.
So, kinetic energy = Potential energy
1/2 mv^2 = m x 2a x h' ...... (2)
By equating equation (1) and equation (2),we get
2h' = h
h' = h / 2
Thus, the ball rises upto half of the height as that of moon.