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A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0014 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.4 102 ft/s, find the average force exerted on the ball by the club.
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Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and connected in parallel. Then the plate separation in one of the capacitors is doubled. (Use DeltaV for ?V and C as necessary.) (a) Find the..
A supertrain of proper length 205 m travels at a speed of 0.87c as it passes through a tunnel having proper length 74 m. How much longer is the tunnel
A 4.50 kg package slides 1.30 m down a long ramp that is inclined at 10.8° below the horizontal. Calculate the work done on the package by gravity
Two resistors, 80.0 and 64.0 , are connected in parallel. The current through the second resistor is 4.30 A, What is the total power supplied to the two resistors
A steel wire of length 1.92m with circular cross section must stretch no more than 0.210cm, What minimum diameter is required for the wire
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0032 s. find the average force exerted on the ball by the club
10g of lead (specific heat = 0.128 J/g C) at 100 C is placed on a glacier of ice at 0 C. How much ice melts
A star has a mass of 1.87 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 3.5 x 104 light-years, Determine the tangential speed of the star
in its daily prow of the neighborhood a cat makes a displacement of 100m due north followed by an 80m displacement east. what is the magnitude and direction of the velocity
An airplane pilot wishes to fly to his destination 500 mi due west, but the wind is blowing at 35.3 mi/hr toward 10.7° north of west. what will be the speed of the plane relative to the ground
In an echolocation lab, a student measures the time from the first click of the fingers to the first echo to be 0.0062. what should the student calculate for the length of the tube
a small disk of radius r=2.00 cm has been glued to the edge of a larger disk of radius R=9.00 cm so that the disks lie in the same plane. What is the rotational inertia of the two-disk assembly about the rotation axis through O
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