Physics, 27.03.2020 02:16 pinkpearl20
A tube with sealed ends has some sand at one end. When the tube is turned upside down the sand falls 0.6m then settles down again. The energy stays in the sand as thermal energy. Use g=9.81m/s2. 1) If the mass of the sand is 0.5kg, how much thermal energy is added on each turn? Increase of U=
Answers: 1
Physics, 21.06.2019 17:20
The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?
Answers: 1
Physics, 21.06.2019 22:50
Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)
Answers: 2
Physics, 22.06.2019 09:00
The material that keeps its new shape after it is stretched is called?
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Physics, 22.06.2019 14:40
During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?
Answers: 1
A tube with sealed ends has some sand at one end. When the tube is turned upside down the sand falls...
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