Select the sentence that best describes why copper and some other metals are good conductors.

Joan is setting up an experiment in the lab to observe newton's second law of motion. she has a model car that has a mass of 45 kg, and it is accelerating at 7 m/s/s. she then increases the acceleration to 28 m/s/s.

Which two wire properties would provide the greatest resistance to the flow of a current? A. short, thin B. long, thin C. hot, thick D. cool, thick

3. Which of the following magnetic scenarios will repel each other? 1. N-N 2. N-S 3. S-N 4. S-S a. 1 and 2 b. 2 and 3 c. 1 and 4 d. 3 and 4

which of the following is a major disadvantage of nuclear power A. high air pollution B. toxic waste materials C. we lack the technology to use it widely

In a double-slit experiment, if the central diffraction peak contains 13 interference fringes, how many fringes are contained within each secondary diffraction peak (between m = + 1 and + 2 in Dsinθ=mλ).

Does a rolling basketball have kinetic energy

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).

What happens to particles when a substance gains energy and changes state?

The density of mercury is 13,600 kg/m³. Determine the mass of 10.0 cm³ of mercury.

A force of 250 N is applied to an object that accelerates at a rate of 10m/sec2. What is the mass of the object?