Physics, 06.12.2019 01:31 cottoncandy465
Block 1 has mass m1= 460 g, block 2 has mass m2= 500 g, and the pulley, which is mounted on a horizontal axle with negligible friction, has radius r= 5.00 cm. when released fromrest, block 2 falls 0.750 m in 5.00 s without the cord slipping on the pulley.
Answers: 3
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 15:40
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
Block 1 has mass m1= 460 g, block 2 has mass m2= 500 g, and the pulley, which is mounted on a horizo...
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