An electric heater of power 1000W has a resistance of 10 ohm. calculate the magnitude of current

Suppose the sun was replaced by a star that had twice as much mass. How would the gravitational force between the sun and its planets change? A. The gravitational force would stay the same. B. The gravitational force would be half as large. C.

Why do the astronauts float inside space stations?

What stores energy for a quick release in a cell?

Tanner is running his finger around the top of a crystal glass with a natural frequency of 1100 hertz. If Tanner can cause the glass to resonate, it could create a high-pitched sound and shatter.

For each of the following, draw the resulting wave when the two pulses occupy the same space. Unless otherwise noted, each wave has an amplitude of + / - A.

4. (**) How can a current be induced in a closed circuit without the use of a battery or electrical power? A. By moving the circuit into a high temperature field B.

Ionic compounds form between elements that are metals and elements that are

You observe someone pulling a block of mass 41 kg across a low-friction surface. While they pull a distance of 5 m in the direction of motion, the speed of the block changes from 5 m/s to 6 m/s.

What is the speed of a bobsled whose distance-time graph indicates that it traveled 123m in 28s?

What is the work done by a 20 newton force applied at an angle of 45.0° to move a box a horizontal distance of 40 meters?