Physics, 08.07.2019 17:20 chanavictor2747
Asmall sphere is hung by a string from the ceiling of a van. when the van is stationary, the sphere hangs vertically. however, when the van accelerates, the sphere swings backward so that the string makes an angle of θ with respect to the vertical. (a) derive an expression for the magnitude a of the acceleration of the van in terms of the angle θ and the magnitude g of the acceleration due to gravity. (b) find the acceleration of the van when θ = 10.0°. (c) what is the angle θ when the van moves with a constant velocity?
Answers: 3
Physics, 22.06.2019 02:30
Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference
Answers: 1
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 22.06.2019 21:30
The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?
Answers: 1
Physics, 22.06.2019 23:00
Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?
Answers: 1
Asmall sphere is hung by a string from the ceiling of a van. when the van is stationary, the sphere...
English, 04.04.2020 22:54
Mathematics, 04.04.2020 22:54
Chemistry, 04.04.2020 22:54
Physics, 04.04.2020 22:54
Mathematics, 04.04.2020 22:54
Chemistry, 04.04.2020 22:54
Chemistry, 04.04.2020 22:54
Mathematics, 04.04.2020 22:54
History, 04.04.2020 22:54
English, 04.04.2020 22:54
Mathematics, 04.04.2020 22:54
English, 04.04.2020 22:54