Answers: 3
Physics, 22.06.2019 11:30
A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
Answers: 2
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20ΒΊ incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 23.06.2019 00:20
Abeam of electrons moves at right angles to a magnetic field of 4.5 Γ 10-2 tesla. if the electrons have a velocity of 6.5 Γ 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 Γ 10-19 coulombs.
Answers: 2
Physics, 23.06.2019 01:30
If the pressure in a gas is doubled while its volume is held constant. true or false
Answers: 3
A 4kg object is moving at a speed of 5 m/sec. how much kinetic energy does the objects have...
English, 09.12.2021 06:00
Mathematics, 09.12.2021 06:00
Biology, 09.12.2021 06:00
Mathematics, 09.12.2021 06:00
Health, 09.12.2021 06:00