Answer:
Explanation:
Mass of object = m
Height above planet = h
Mass of planet = M
Radius of planet = R
As we have to find out velocity, so let's apply the law of conservation of energies on initial( when the object was at height) and final( when object hit the surface points.
Initial energy = Final energy
Answer:
B. 16 kJ
Explanation:
Energy = VIt.............. Equation 1
Where V = Voltage, I = Current, t = time
Given: V = 5.0 V, I = 1.5 A, t = 1 h = 3600 s.
Substitute these values into equation 2
E = 5.0(1.5)(3600)
E = 27000 J
E = 27 kJ.
Amount of energy left = 43 kJ - 27 kJ
Amount of energy left = 16 kJ.
Hence the right option is B. 16 kJ
with a -1 iron charge it becomes an electrode
Answer:
Perfectly inelastic collision
Explanation:
There are two types of collisions:
- Elastic collision: in an elastic collision, the total momentum of the objects before and after the collision is conserved; also, the total kinetic energy of the objects before and after the collision is conserved.
- Inelastic collision: in an inelastic collision, the total momentum of the objects before and after the collision is conserved, while the total kinetic energy is not. In fact, part of the total kinetic energy of the objects is lost during the collision, converted mainly into thermal energy (or other forms of energy) due to the presence of frictional forces.
- A particular type of inelastic collision is called perfectly inelastic collision: this occurs when the two objects stick together after the collision. In this case, the maximum amount of kinetic energy of the system is lost.
Answer:
the particle experiences maximum force when it will be moving perpendicular to magnetic field.
it experiences minimum deflecting for when its going parallel to the magnetic field.
Explanation:when a charged particle is moving
magnetic field is B which is a vector
Magnetic force on a charge is F
formula for force F =Q.(VxB)
magnitude of the charge particle is Q
the vector multiplication of (VxB) if most significant when the charge particle is moving parallel.Very minimum when moving
velocity of the charge particle is V
