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A ball is thrown from the top of a 50m cliff with a velocity of 10m/s @30 degrees. a) what is the time to the maximum height and what is the max height? b) how long does the ball take to hit the ground? c) what is the velocity of the ball when it hits the ground? d) what is the horizontal range when the ball hits the ground (total x distance)?
What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 second? Explain your answer and state why this question is an exercise in careful reading as well as in physics.
a 3-kg rock is tied to the end of a string and twirled overhead 1.9 m above the ground in a 0.8-m radius horizontal
a uniform 2.8 magnetic field points to the right a 2.19 m long wire carrying 21.8 a is placed at an angle of 23
A man uses a tire iron to loosen his lug nuts. The tire iron is 25cm long. The man applies a force of 30N at an angle of 29° to the iron. What is the torque that is applied to the lug nut
You are designing a machine for a space exploration vehicle. It contains an enclosed column of oil that is 1.05m tall, What must be the density of the oil
A 75.0 kg bungee jumper, tied to a 39.0 m longcord, leaps off a bridge whose deck is 69.0 m above thewater. He falls to 7.0 m above the water before the bungeecord pulls him back up. What is the magnitude of the impulseexerted on the bungee jumper..
an electron in a certain region of space has an electric potential energy given by ux 7.6010-15 jx 4.8010-16 jmx3 in
A block of weight 3.9N is launched up a 30 degrees inclined plane 2.10m long by a spring with k = 2.15kN/m and maximum compression 0.10m, find How much kinetic energy does it have there
A 120 W lightbulb and a 90.0 W lightbulb are connected in a series. what is the current through the two bulbs
A car is driven east for a distance of 51 km, then north for 30 km, and then in a direction 31° east of northfor 29 km. Draw the vectordiagram and determine the total displacement of the car from its starting point.
1. gaseous helium is to be used to quench a hot piece of metal. the helium is in storage in an insulated tank with
An atomic nucleus initially movingat 420m/s emits an alpha particle in the direction of its velocity,and the remaining nucleus slows to 350 m/s. what speed does the alpha particle have when it is emitted
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