Is mechanical energy always conserved? Why or why not?
2016年12月30日 · Mechanical energy is the sum of kinetic and potential energy in a system. It is conserved unless outside forces, such as friction, act on the system and convert energy into …
What is mechanical energy? + Example - Socratic
2018年5月10日 · Below Mechanical Energy is the sum of your gravitational and kinetic energy of all its parts. If no other forces but gravity is present, energy will not be transferred into or out of …
Explain how it is possible for a ball to have kinetic and ... - Socratic
2017年6月4日 · Learn how a ball can have both potential and kinetic energy at different times during its fall, using examples and formulas. See how the total mechanical energy is …
Generators and Motors - Physics - Socratic
Learn the difference between an electric motor and an electric generator in terms of energy transfer and structure. A motor converts electrical energy into mechanical energy, while a …
If we know the total energy in a system is 30 J, and we know
2018年4月20日 · The Kinetic Energy in the system is 10 J The total mechanical energy in a closed system is always the sum of the potential and the kinetic energies. KE+PE=TE KE=TE …
A 2.2 kg block starts from rest on a rough inclined plane ... - Socratic
2018年2月8日 · 9.96 J Here,value of maximum frictional force acting is mumgcos 25(Note,here this amount of frictional force will act,as it's value is smaller than the downward component of …
What additional information you would need to calculate the …
2017年10月13日 · Mechanical energy is the sum of #color(red)"potential energy"# and #color(blue)"kinetic energy"#. Potential energy #U# is the energy that an object stores as a …
A roller coaster car with a mass of 500 kg at the top of a ... - Socratic
2017年7月25日 · Find out how to calculate the kinetic energy of a roller coaster car with a mass of 500 kg at the bottom of a hill that is 30 m high, assuming no friction or air resistance. See the …
How does solar energy convert the heat energy into ... - Socratic
2016年1月2日 · Next, this steam spins a turbine, producing mechanical energy. This mechanical energy is then used to power a generator, which produces electricity. Note: Sometimes fossil …
A 16.0 kg fish swimming @ 1.10m/s suddenly gobbles up a 4.40
2018年5月25日 · A) Using Law of Conservation of momentum that initial momentum is equal to final momentum we have m_l*v_"li" + m_s*v_"si" = m_l*v_"lf" + m_s*v_"sf" .....(1) After the …