A crane is used to lift an object. The crane applies a force of 400 to lift the object a distance of 25 meters in 20 seconds. Calculate the work in J performed by the crane to lift the object

Heat is transferred at a rate of 2 kW from a hot reservoir at 800 K to a cold reservoir at 300 K. Calculate the rate at which the entropy of the two reservoirs changes and determine if the second law is satisfied

Is carving a statue out of marble a physical change or chemical change? Is sanding a piece of wood a physical change or chemical change?

What species has the electron configuration [ar]3d2?

Why are not other objects, like your pencil, being pulled toward you

A net force of 1.0N acts on a 4.0 kg object, initially at rest, for 4.0 seconds. What is the distance the object moves during the same time?

2. What are your chances of survival if you are struck by lightning?

Which of the following happens when a solid changes to a liquid? a. Energy flows from the liquid to its surroundings b. Particles in the solid move from their fixed position and become less orderly c. The solid particles lose energy d.

Write the name of animal herbivore

Determine the stopping distances for an automobile going a constant initial speed of 95 km/h and human reaction time of 0.50 s. for an acceleration a = - 3.

An arrow is fired directly horizontal off a cliff that is 10.0 meters tall with a velocity of 65.5m/s how long is the arrow in the air?