Sienna made a chart listing the steps that describe how a four-stroke heat engine operates.

A 6kg weight is lifted off the ground to a height that gives it 70.56j gravitational potential energy. what is its height? acecelaration due to Gravity is g=9.8m/s

Length is fundamental quantity whereas area is derived quantity. Justify

Why do we balance chemical equations

An unstretched spring has a length of 10. centimeters. When the spring is stretched by a force of 16 newtons, its length is increased to 18 centimeters. What is the spring constant of this spring? A) 2.0 N/cm B) 1.6 N/cm C) 0.89 N/cm D) 1.8 N/m

A plane starting at rest at the south end of a runway undergoes a constant acceleration of 1.6 m/s/s for a distance of 1600m before takeoff. What is the time required for takeoff? What is the plane's velocity at takeoff?

In which of the following are action and reaction forces involved? A. when a tennis racket strikes a tennis ball B. when stepping from a curb C. when rowing a boat D. all of the above

What happens to the entropy of a piece of wood as it is burned? a. It increases. b. It decreases. c. It stays the same. d. SubmitR

A 15-foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth of a foot.

The electron structures of atoms are not involved in the emission of:

A boulder with a mass of 2,500 kg rests on a ledge 200m above the ground. What is the boulder's GPE