A constant 20 N force is applied to a 7 kg box to push it along the ground. How much work is done by this force if the box moves 2 m?

What is the critical angle for glass when the refractive index is 1.45

What would you do to measure the current in a resistor?

The rope is blurred ahead of peak of pulse and behind it but not peak itself. Explain

A circular bird feeder of radius R and moment of inertia I is suspended at its center by a thin wire. (The feeder is oriented in a horizontal plane.) A bird of mass mB lands on the rim of the feeder, coming in with a velocity tangent to the rim.

A bird with a mass of 15 kg flies at a rate of 4.0 m/s. what is the kinetic energy of the bird

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?