What makes the earth spin?

Heat can be transferred through conduction, convection, and radiation. What is necessary in order for heat to be transferred by conduction? A. The substances must be liquids or gases. B. The objects must be in direct contact with one another. C.

Two blocks A and B with mA = 2.2 kg and mB = 0.84 kg are connected by a string of negligible mass. They rest on a frictionless horizontal surface. You pull on block A with a horizontal force of 5.7 N.

Leonard is stressed and feeling overwhelmed by the college selection process. What should he do to combat this problem?

Conventional current- a. is the direction an electron would move in an electric field. b. is from + to - c. is from - to + d. both a and c

A windmill is example of a a. generator b. resistor c. insulator d. motor

When h2o is removed from the mixture does the equilibrium shift to the right to the left or is there no shift?

Which best explains why the acoustics underwater affect the Doppler effect? Sound waves can not transfer energy through water. Sound waves can not travel through water. The speed of sound is less in water than in air.

What is the part of the cell that stores food?

2. A circuit consists of a 10.0-ohm resistor, a 15.0-ohm resistor, and a 20.0-ohm resistor connected in parallel across a 9.00-volt battery. What is the equivalent resistance of this circuit? (1) 0.200 12 (3) 4.62 1 (2) 1.95.22 (4) 45.012

What technology makes up the transducer? a. A phased array c. A PET scan b. An x-ray d. A laser