Answers: 1
Physics, 21.06.2019 20:30
Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m
Answers: 2
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 05:40
The difference between a red shift and a blue shift has to do with wavelength frequency. t or f
Answers: 1
Physics, 22.06.2019 20:50
In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.
Answers: 3
Class work 35. if an object accelerates from rest, with a constant acceleration of 5.4 m/s2, what wi...
Mathematics, 03.04.2020 09:13
Chemistry, 03.04.2020 09:13
Biology, 03.04.2020 09:13
Mathematics, 03.04.2020 09:13
Mathematics, 03.04.2020 09:13
Mathematics, 03.04.2020 09:14
History, 03.04.2020 09:14
Physics, 03.04.2020 09:14
Mathematics, 03.04.2020 09:14
Social Studies, 03.04.2020 09:14
Mathematics, 03.04.2020 09:14
Geography, 03.04.2020 09:15
Geography, 03.04.2020 09:15
Mathematics, 03.04.2020 09:15
Mathematics, 03.04.2020 09:15
Mathematics, 03.04.2020 09:16
History, 03.04.2020 09:16
Mathematics, 03.04.2020 09:16