Physics, 23.08.2019 19:10 lexiecooley
Aworker is using a pulley to lift a 33-kilogram crate. if he applies a force of 129 newtons, the crate is lifted 16.5 meters above the ground and the displacement of the rope is 33 meters. what is the efficiency of the pulley? (given: g = 9.8 meter/second2)
Answers: 3
Physics, 21.06.2019 20:20
When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation
Answers: 2
Physics, 22.06.2019 22:50
What is an electric motor? explain its operation. 2-3 sentence
Answers: 1
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Physics, 23.06.2019 01:50
Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.
Answers: 1
Aworker is using a pulley to lift a 33-kilogram crate. if he applies a force of 129 newtons, the cra...
Mathematics, 18.03.2020 01:55
Computers and Technology, 18.03.2020 01:55
Social Studies, 18.03.2020 01:55
Mathematics, 18.03.2020 01:56
Biology, 18.03.2020 01:56
Mathematics, 18.03.2020 01:56