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A 113 gram apple falls from a branch that is 2.5 meters above the ground.
How much time elapses before the apple hits the ground?
Just before the impact, what is the speed of the apple?
Illustrate what is the speed of the three coupled cars after the collision? How much kinetic energy is lost in the collision?
If the merry-go-round completes one revolution every 5.2 s, find out the angular speed and the linear speed of each child.
When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, What laser beam intensity will produce such a field
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. How much time is required for the projectile to come up to speed
A Father pulls his sons across the son on a sled. The children and sled together weigh 550-N. The father pulls the sled with a force of 400-N at an angle of 40 degrees above the horizontal. Avoiding friction, determine out the acceleration of the ..
A 2 kg mass is pushed 0.5 m into a spring with spring constant 200 N/m on a frictionless horizontal surface. Upon release, the mass travels across the surface until it encounters a rough incline. The mass moves up incline and stops at a height of ..
A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of the hot junction is 110 °C, what is the temperature in degrees Celsius of the hot junction
A baseball player hits a double and ends up on second base. A baseball "diamond" is a square, each side of length 27.4 m, with home plate and the three bases on the four corners. What is the magnitude of the player's displacement?
In a volcanic eruption, a 2.40 × 103 kg boulder is thrown vertically upward into the air. Where will the other fragment land
A person of mass 75kg hauls himself off the floor up a vertical rope with an acceleration of 0.68m/s. calculate the tension in the rope
An office window has dimensions 3.5 m by 2.3 m. As a result of the passage of a storm, What net force pushes out on the window
A series RLC circuit with a resistance of 280? has capacitive and inductive reactances of 320? and 460? , respectively. What is the power factor of the circuit
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