Physics, 06.04.2020 22:30 maddy121209
You need to raise a heavy block by pulling it with a massless rope. You can either a) pull straight up height h or b) pull up a long, frictionless plane inclined at a 15 degree angle until it has reached height h. Assume you will move the block at constant speed either way. WIll you do more work in case a or case b, or will they be equal? Why?
Answers: 1
Physics, 21.06.2019 20:00
When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.
Answers: 1
Physics, 22.06.2019 12:00
An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?
Answers: 2
You need to raise a heavy block by pulling it with a massless rope. You can either a) pull straight...
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