Which two of the following are the least dense materials shown?

Material Mass (g) Volume (L)

Rock 1000 0.5

Pillow 200 10

soda 2000 2

bread 100 1

A car tire has a volume of 0.0150 cubic meters on a cold day at a temperature of 5.0 °C and atmospheric pressure of 1.02 atm. The gauge pressure is measured to 1.70 atm. After the car is driven the air temperature has risen to 45.

Two resistors have resistances R1 = (24 + - 0.5) ohm and R2 = (8 + -0.3) ohm. Calculate the absolute error and the percentage relative error in calculating the combination of two resistances when they are in parallel.

Try it A volleyball player's hand applies a 39 N force while in contact with a volleyball for 2 seconds. What is the impulse on the ball?

The bar rides on parallel metal rails connected through R 25.6-2, so the apparatus makes a complete circuit. You can ignore the resistance of the bar and the rails. A) Calculate the magnitude of the emf induced in the circuit.

A charge moves a distance of 1.8 cm in the direction of a uniform electric field having a magnitude of 214 N/C. The electrical potential energy of the charge decreases by 51.63 * 10-19 J as it moves.

The vector quantity that defines the distance and direction between two positions.

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.

What is the angle between a rigid object and the force applied to it that yields torque using the equation T=Fd?