Explain why sublimation and deposition are classified as physical changes

A motor with an operating resistance of 32 ohms is connected to a voltage source. the current in the circuit is 3.8 a. what is the voltage of the source?

Which statement best describes how work and power are different? a. To find work we need to know force and distance; to find power we need to know force and velocity. b.

You use a pulley to lift your bike to the ceiling for winter storage. when you bought the pulley, the salesman claimed that the pulley has a mechanical advantage of 10.

Spend time observing or thinking about events that involve matter and energy. Which events can you explain? Which event's can't you explain?

A NASA explorer spacecraft with a mass of 1,000 kg takes off in a positive direction from a stationary asteroid.

A spring tide can occur at what day and month?

For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement

Electric force is blank proportional to the amount of charge and blank proportional to the square of the distance between the charges

What happens in the gray zone between solid and liquid?

Which statement describes Newton's law of universal gravitation? Mass has hittle effect on gravity between objects. Gravity pushes objects away from Earth's center, Gravity does not act between Earth and the moon.