Arock, with a density of 3.55 g/cm^3 and a volume of 470 cm^3, is thrown in a lake. a) what is the weight of the rock out of the water? b) what is the buoyancy force on the rock? c) what is the mass of the water that the rock displaces? d) what is the weight of the rock under water?
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Physics, 22.06.2019 17:40
Which component of the earth’s atmosphere is decreased due to photosynthesis?
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Physics, 22.06.2019 18:00
Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?
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Physics, 22.06.2019 19:30
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
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Physics, 23.06.2019 01:30
Aball is thrown vertically upwards from the top of a tower with a speed of 100m/s.it strikes the pound near the base of the tower after 25sec . the height of the tower is
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Arock, with a density of 3.55 g/cm^3 and a volume of 470 cm^3, is thrown in a lake. a) what is the w...
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Mathematics, 07.05.2020 02:59
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