When an 8-V battery is connected to a resistor, 2 A of current flows in the resistor. What is the resistor's value? A. 2 ohms B. 4 ohms C. 8 ohms D. 16 ohms E. more than 16 ohms

A 10.0 kilogram mass of iron on earth exerts a downward force of 98 Newtons. On the moon this same 10.0 kilograms of iron is weighed and found to exert a downward force of 16.3 Newtons. How is this possible?

An insulated piston-cylinder device contains 5 l of saturated liquid water at a constant pressure of 150 kpa. an electric resistance heater inside the cylinder is now turned on, and 2200 kj of energy is transferred to the steam.

Spaceship flies past mars with a speed of 0.985c rela - tive to the surface of the planet. when the spaceship is directly overhead, a signal light on the martian surface blinks on and then off.

Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. The objects collide, stick together, and move with speed 0.100 in the direction of the velocity of the first mass before the collision.

26. Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.0 gal of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction.

What is the closest planet to earth that scientist think can support life?

Which force is most directly responsible for radioactive beta decay? electromagnetic force strong interaction gravitational interactions weak interaction

Momentum is a measure of the of an object. Which term accurately completes the sentence?

2. When a potential difference of 12 V is applied to a wire 6.9 m long and 0.33 mm in diameter the result is an electric current of 2.1 A. What is the resistivity of the wire?

A certain part of a computer chip has a length of 1.5 micrometers. How many meters is this?