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Ball A is dropped from the top of a building of height h at the same instant that ball B is thrown vertically upward from the ground. When the balls collide, they are moving in opposite directions, and the speed of A is twice the speed of B. At what height does the collision occur? (Use any variable or symbol stated above as necessary.)
A boulder has 300J of potential energy sitting on the edge of cliff. What is the boulder's kinetic energy as it hits the ground.
What is the magnitude of the apparent weight of an 80-kg astronaut 5200-km from the center of the Earth's Moon in a space vehicle moving at constant velocity.
A particle of mass 7.22 x 10^-27 kg, moving at 7.06 x 10^5 m/s, strike an identical particle which is initially at rest. calculate the final speeds of the particles
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 34.1 m/s in a time of 6.79 s
A charge of -2.95 µC is fixed at the center of a compass, What are the magnitude and direction of the net electrostatic force acting on the charge at the center
A violinist places her finger so that the vibrating section of a 1.3g/m string has a length of 40.00 cm, after that she draws her bow across it. A listener nearby in a 20 ^circ {rm C} room hears a note with a wavelength of 60.0cm. What is the tens..
High-voltage power lines are a familiar sight throughout the country. What is the resistance of ten kilometers of this wire
What was an initial speed of the ball
The collar C is moving downward with an acceleration of 1 m/s2. At the instant shown, it has a speed of 2 m/s which gives links CB and AB an angular velocity ωAB = ωCB = 10 rad/s. Determine the angular accelerations of CB and AB at this instant.
A bowling ball weighing 71.6 is attached to the ceiling by a rope of length 3.71 . The ball is pulled to one side and released, What is the acceleration of the bowling ball
Alpha-particle scattering experiments using uranium (Z = 92) as the target material show that the alpha-particles experience a pure Coulomb repulsion, Estimate the radius of the uranium nucleus
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