Answer:
The net force acting on an object is proportional to the acceleration of that object with respect to an inertial frame of reference. The constant of proportionality in this, Newton's second law, is the classical mass of the object.
Explanation:
Answer:
because formula of kinetic energy is K=1/2mv^2 that means more the velocity then more kinetic energy
Answer:
a body weigh more at the equator since earth is not completely round it is an oblate spheroid – a sphere with a bulge around the equator. that is why the places at the equator are more in contact with the core rather than the places at the poles.
Answer:
A. (b)
B. (a)
Explanation:
The electric dipole moment is the product of charge and the length of the dipole.
The torque on the dipole placed in the external electric field is given by
torque = p E sin A
where, p is the electric dipole moment, E is the electric field, A is the angle between the field and dipole moment.
When the dipole moment is parallel to the electric field, the net torque is zero and it is said to be in stable equilibrium.
When the dipole moment is anti parallel to the electric field, the net torque is zero but the dipole is in unstable equilibrium.
So, the option (b) is correct.
Teh energy is given by
U = - p E cos A
When the angle A is zero , the potential energy is negative and it is minimum.
Answer:
The mass of mars is 
Explanation:
Given that,
Time = 1.02 s
Height = 2.00 m
Radius of mars 
We need to calculate the acceleration due to gravity on mars
Using equation of motion
Where, u = initial velocity
t = time
h = height
Put the value into the formula
We need to calculate the mass of mars
Using formula of gravity
Put the value into the formula
Hence, The mass of mars is
