Which is more expensive to create coal or solar power

A net force of 30 N gives a stone an acceleration of 5 m/s. Calculate the mass of the stone

Given a particle that has the velocity v (t) = 3 cos (mt) = 3 cos (0.5t) meters, a. Find the acceleration at 3 seconds. b. Find the displacement at 2 seconds.

A centrifuge is a common laboratory instrument that separates components of differing densities in solution. This is accomplished by spinning a sample around in a circle with a large angular speed.

There are 1.6 km in a mile. the distance between two cities is 248 miles. how many kilometers are the two cities

a circuit is connected to 8 volt battery and it has 2 amperes of current flowing through the wires. What is the resistance of the circuit

Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour

If a clock expends 2 W of power from a 1.5 V battery what amount of current is supplying the clock?

The rectangular plates in a parallel-plate capacitor are 0.063 m * 5.4 m. A distance of 3.5 * 10-5 m separates the plates. The plates are separated by a dielectric made of Teflon, which has a dielectric constant of 2.1.

What connection does salt have with acids and bases?

All of the following are types of telescope except