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A golf ball is struck with a five iron on level ground. It lands 91.8 m away 4.20 s later. What was (a) the direction and (b) the magnitude of the initial velocity?
a 2.50 kg firework shell is fired straight up from a mortar and reaches a height of 110 m. Neglecting air resistance, calculate the shell's velocity when it leaves the mortar
Using the liquid drop model, tabulate the nuclear binding energy and the various contributions to the binding energy for the nuclei 40Ca and 208Pb.
a machinist is using a wrench to loosen a nut. the wrench is 25.0 cm long and the exerts a 17.0 n force at the end of
two strings each 18.0m long are stretched side by side. one string has a mass of 87.0g and a tension of 220.0n. the
A storm cloud and the ground represent the plates of a capacitor, How much sap in the tree can be boiled away, Model the sap as water initially at 26.0°C
A 2000 kg car is slowed down uniformly from 23.0 m/s to 5.00 m/s in 4.40 s. What average total force acted on the car during that time
A bicyclist rides 3.97 km due east, while the resistive force from the air has a magnitude of 7.84 N and points due west. Find the work done by the resistive force during the round trip
The left end of a long glass rod 15.0 cm in diameter has a convex hemispherical surface 7.50 cm in radius, Determine the position of the image if an object is placed in air on the axis of the rod
There are 2 spaceships, A and B, that approach the earth from opposite directions. Now according to an observer on spaceship A,she approaches the earth at 0.7c. According to an observer onspaceship B, he approaches the earth at 0.85c.
A copper wire has a 25-m ohm resistance at 20 degrees C. When the wire is carrying a current, What is the change in the wire's resistance
A radio station is allowed to broadcast at an average power not to exceed 26 kW. estimate how many kilometers away you might be able to hear this station
I have a hill with a roller coaster cart on it and it goes down and around a loop-the-loop the radius of the loop is 10m Diameter=20m There is no friction, what is the height of the hill
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