What radiant energy is sensed by human skin as warmth

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?