If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K?

A child whose weight is 297 N slides down a 6.60 m playground slide that makes an angle of 38.0° with the horizontal. The coefficient of kinetic friction between slide and child is 0.160.

A projectile of mass 0.607 kg is shot straight up with an initial speed of 20.1 m/s. (a) How high would it go if there were no air resistance?

Desde lo alto de un edificio de 25 m de altura se lanza una pelota verticalmente hacia arriba con una velocidad de 10 m/s. Calcula: a) La altura máxima conseguida por la pelota. b) El tiempo que tardará en caer la pelota al suelo.

A car has a mass of 1,200 kg. What is its acceleration when the engine exerts a force of 600 N? (Formula: F=ma) 0.5 m/s2 2 m/s2 600 m/s2 1,800 m/s2

A car starts from a full top and in 20 seconds is traveling 10 m per second. what is the acceleration

A paragraph that can serve the specific purpose of creating a special effect within the essay is called? a. paragraph block b. functional paragraph c. unified passage d. topical paragraph

What are the steps that produce electricity from this fuel

Adrian read about a new antimicrobial in a popular magazine. The advertisement claimed that the product Bactokil prevents bacterial growth. So, Adrian conducted a controlled experiment to test the product claims.

A world-class sprinter can burst out of the blocks to essentially top speed (of about 11.5 m/s) in the first 15.0 m of the race. what is the average acceleration of this sprinter, and how long does it take her to reach that speed?

How are primary and secondary succession similar and how are they different?