How much force is required to keep a 2.0kg stone from falling?

Transmission Lines and Health. Currents in dc transmission lines can be 100 A or higher. Some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers.

The velocity of a particle moving along the x axis is given by vx = a t - b t3 for t > 0, where a = 27 m/s 2, b = 3.1 m/s 4, and t is in s.

Three resistances 2 ohm, 3ohm and 5 ohm are connected in parallel and a potential difference of 20V is applied across the terminals of combination. The potential difference across 3 ohm resistance is:

A person's temperature is 40°C What would it be in Kelvin?

Is a theory related to perspective

Which type of wave experiences a change in speed when entering a new medium? a) only sound waves b) both sound and light waves c) only light waves d) neither sound or light waves

Three basic classes of collisions include all but which of the following?

How does the use of biomass energy to create electricity harm the environment

Which physical property of iron made it popular for use in weapons? 1. Magnetism 2. Luster 3. Malleability 4. Ductility

a 2 kg rock is dropped from the top of a 30 m High building calculate the ball at the time that it strikes the ground