Solar Radiation is just light, or heat, from the sun (solar)
Answer:
I think it is False.
Explanation:
I think that a body could not be vertical for every time.
Gravitational force is determined by mass
Answer: Option B
<u>Explanation:</u>
According to Universal law of gravity, the gravitational force is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance between the objects.
Where,
G – gravitational constant =
= masses of two objects
r – distance between the objects
So, as per this law, the gravitational force is found by mass.
Answer:
a) speed of the car = 22.22 m /s
b) ( i )
Explanation:
Negative work done by friction will be equal to reduction in kinetic energy of the car.
Frictional force = μ R = μ mg
work done by it = μ mg x 70 m.
Change in kinetic energy = 1/2 m v²
So , μ mg x 70 = 1/2 m v² ------------- ( 1 )
v = √2 x μ x 70 x g
= √2 x .36 x 70 x 9.8
22.22 m/s
As we have seen that m cancels out on both side of equation no ( 1 )
Yes the magnetic field is created by a current loop uniform because there is a magnetic field.