Physics, 02.07.2019 01:20 lovebug3563
At a carnival, you can try to ring a bell by striking a target with a 8.91-kg hammer. in response, a 0.411-kg metal piece is sent upward toward the bell, which is 3.88 m above. suppose that 21.9 percent of the hammer's kinetic energy is used to do the work of sending the metal piece upward. how fast must the hammer be moving when it strikes the target so that the bell just barely rings?
Answers: 3
Physics, 21.06.2019 19:30, yolinda123429
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.
Answers: 1
Physics, 22.06.2019 09:30, abdominguez7187
An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?
Answers: 2
Physics, 22.06.2019 16:30, xxaurorabluexx
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
Physics, 22.06.2019 18:30, sarinaneedshelp01
A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
Answers: 3
At a carnival, you can try to ring a bell by striking a target with a 8.91-kg hammer. in response, a...
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