Among iron and copper Electrons move freely in which of them?

What has more thermal energy a small balloon or a large balloon

A box with an open top has vertical sides, a square bottom, and a volume of 32 cubic meters. if the box has the least possible surface area, find its dimensions. (in your answer leave a space between the number and the unit.

Density is calculated by: dividing volume by mass dividing mass by volume multiplying mass and volume multiplying mass and gravity

0.4 uC of charged ball is connected with to earth through a wire. Calculate the current flowing through a the wire if time required discharge the ball is 0.2 seconds. Draw a diagram for this case including the current direction

The speed of sound at 0°C is 331.5 m/s. Calculate the speed of sound in the room at 10.0°C.

What happens when a plastic lid sprinkled with iron filings is placed over a magnet?

A stuntman drives a car with a mass of 1500 kg on a drawbridge. The car accelerates with a constant force of 10,000 N. While he is driving, the drawbridge is raised to an incline of 30°.

In this channel of communication, messages are carried by sound and light waves. a. teleconference b. face-to-face c. voicemail d. hard copy memos

Cardiovascular exercise can

Kathy tests her new sports car by racing with Stan, an experienced racer. Both start from rest, but Kathy leaves the starting line 1.00 s after Stan does. Stan moves with a constant acceleration of 3.1 m/s2 while Kathy maintains an acceleration of 4.