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A student proposes to measure the gravitational constant G bysuspending two spherical objects from the ceiling of a tallcathedral and measuring the deflection of the cables from thevertical. Draw a free-body diagram of one of theobjects. If two 100.0kg objects are suspended at the lowerends of cables 45.00 m long and the cables are attached to theceiling 1.000m apart, what is the separation of the objects?
A 2.0 kg ball is attached to a vertical post with two strings, one 2 m long and the other 1 m long. If the ball is set whirling in a horizantal circle, find the tension on each string
A 5 kg box block is pushed 3 m up a vertical wall with constant speed by a constant force of magnitude F at an angle of 60 degrees with the horizontal.
A vertical scale on a spring balance reads from 0 to 160 N. The scale has a length of 12.5cm from the 0 to 160 N reading. A fish hanging from the bottom of spring oscillates vertically at the frequency of 2.30 Hz. ignoring the mass of the spring, wha..
If the bullet has a mass of 21.0 g and a speed of 235 m/s, explain how high will the block rise into the air after the bullet becomes embedded in it?
The work function for platinum is 6.35 eV. Ultraviolet light of wavelength 150 nm is incident on the clean surface of a platinum sample. What is the photon energy of the ultraviolet light
An 6.60-cm-diameter, 300 sphere is released from rest at the top of a 1.70-m-long, 20.0 incline. It rolls, without slipping, to the bottom. What fraction of its kinetic energy is rotational
A 46.2 kg girl is standing on a 132 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the ice surface
a solenoid has a diameter of 12cm when a current i exists in its winding a uniform magnetic field of magnitude B = 30mT is produced in its interior. Calculate the magnitude of the induced electric field
A certain freely falling object, released from rest, requires 1.90 s to travel the last 36.5 m before it hits the ground. Find the total distance the object travels during the fall
Starting from rest, a 4.50-kg block slides 3.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436. Determine the work done by the force of gravity
An electron starts from rest 36.5cm from a fixed point charge with Q = -0.105?C. How fast will the electron be moving when it is very far away
A certain automobile engine delivers 2.24 104 W (30.0 hp) to its wheels when moving at a constant speed of 21.0 m/s ( 47 mi/h). What is the resistive force acting on the automobile at that speed?
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