How many types of quarks are there?

a. 2

b. 4

c. 6

d. 8

What best describes the goals of scientific investigation and technological development?

How did rutherford's model of the atom differ from thomson's model?

Two plates are being forced together. What type of boundary is this?

Which of the following processes are spontaneous? Check all that apply. the extraction of iron metal from iron ore a hot drink cooling to room temperature drawing heat energy from the ocean's surface to power a ship the combustion of natural gas

Which of the following are major problems with fission reactors? maintaining high temperatures disposal of hot water disposing of radioactive waste obtaining fuel

A uniformly charged thin ring has radius 15.0 cm and total charge 23.5 nC. An electron is placed on the ring's axis a distance 30.5 cm from the center of the ring and is constrained to stay on the axis of the ring.

Some people refer to nuclear power as "clean energy." Why do they make this argument? Do you agree or disagree? Explain your answer.

What does thermal energy mean?

Oil having a density of 924 kg/m 3 floats on water. A rectangular block of wood 3.79 cm high and with a density of 970 kg/m3 floats partly in the oil and partly in the water. The oil completely covers the block.

Where does the energy that is used to ride a bicycle up a hill come from and how is it classified?