Physics, 18.03.2021 19:20 Hammon1774

1) Calculate the kinetic energy of a bullet of mass 0.015 kg, travelling at a speed of 240 m/s. 2) Calculate the increase in the gravitational potential energy store of a boy of mass 50 kg after he has climbed the Taipei 101 Tower, which is 440 m high.
3) A car has a mass of 1500 kg. It accelerates from a speed of 15 m/s to a speed of 20 m/s. Calculate the increase in kinetic energy of the car.
4) A car suspension spring has a spring constant of 2000 N/m. Calculate the elastic potential energy stored in the spring when it is compressed by 8 cm.
5) A meteor has a mass of 0.05 kg and it is travelling towards Earth at a speed of 30 km/s. Calculate the kinetic energy of the meteor.

CORRECT ANSWERS OR ILL REPORT!
ill also give brainliest answer

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 12:30

How do the kidneys affect homeostasis

Answers: 1

Answer

Physics, 22.06.2019 13:00

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.

Answers: 3

Answer

Physics, 22.06.2019 16:20

The energy equivalent of the rest mass of an electron is

Answers: 1

Answer

Physics, 22.06.2019 16:50

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Answers: 1

Answer

You know the right answer?

1) Calculate the kinetic energy of a bullet of mass 0.015 kg, travelling at a speed of 240 m/s. 2)...

Questions