Answer:
250 kgm/s
Explanation:
To calculate momentum, simply take the product of the mass and velocity.
Answer:
The correct option is: c) Sunset
Explanation:
Moon is the permanent natural satellite of the Earth. It orbits around our planet Earth and shows synchronous rotation.
When Earth is present between the Moon and Sun, the moon appears to be fully illuminated from the Earth, this is called the full moon. <u>All full moons rise about the same time as the sunset.</u>
Answer:
The mouse runs faster to have the same kinetic energy as the elephant.
Explanation:
Note from the equation given, mass (m) is directly proportional to KE. This means an elephant with more mass will have more KE, therefore, for the mouse to compensate, it has to run faster because its KE is smaller because of its small mass. If both run at the same speed, the elephant would have thousands of times more kinetic energy than the mouse. So the mouse has to run faster so that its speed compansates for its smaller weight.
Answer:
b: false
Explanation:
It's true that endothermic reactions absorb heat from their surrounding. But this makes the surroundings cooler, not warmer.
Answer:
377 m
Explanation:
number of turns, N = 65
θ = 36°
B1 = 200 micro Tesla
B2 = 600 micro tesla
t = 0.4 s
induced emf, e = 80 mV
Let a be the side of the square coil.
a = 1.45 m
Total length of the wire, L = N x 4a = 65 x 4 x 1.45 = 377 m
Thus, the length of the wire is 377 m.
