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Two blocks are connected by a massless string which passes through a hole in a frictionless table. The blocks have masses M1 = 1.1 kg and M2 = 2.1 kg. Block 1 rests a distance r = 0.35 m from the center of the frictionless surface. Block 2 hangs vertically underneath. 1) Assuming block two does not move relative to the table and block one is rotating around the table, what is the magnitude of the velocity of the block one in m/s? 2)How much time in seconds does it take for block one to make one revolution?
Astronauts put their spaceship into orbit about a planet. How far above the planet's surface are they orbiting
An airplane is flying in a horizontal circle at a speed of 133.3 m/s. Banked for this turn, What is the radius of the circle in which the plane is flying
A wrench 0.500m long is applied to a nut with a force of 80.0 N.
A 25 horsepower motor consumes 21 kW of electricity, Calculate the heat loss of the motor (kW) and Calculate the efficiency of the motor
Violet light falls on a surface with two small slits 1.9 x10–4 cm apart. A first-order line appears 13.2 cmfrom the central bright spot on a screen opposite the slits. Thedistance from the center of the slits to the first-order violetline is 60 cm...
a student throws a set of keys vertically upward to her sorority sister who is in a window 2.50 m above. the second
question1an 8.00 point mass and a 15.0 point mass are held in place 50.0 apart. a particle of mass is released from a
A 2.20- bullet embeds itself in a 1.60- block, which is attached to a spring of force constant 780. Find the time for the bullet-block system to come to rest
A 20.0-kg mass is supported by two strings as shown in Fig. 12-4. The left string is 2.00 m long and the right string is 5.00 m long. What is the tension in the right side string
A long freight train has a mass of 5×(10^6) kg and is initially traveling at 25 m/s. Find the time it takes the train to stop
A person swimming underwater sees a lifeguard who is standing in the shallow part of the pool; the water comes up to the lifeguard's waist. In what way does the swimmer see lifeguard's upper body distorted.
The radii of the wheels of a compound wheel and axle are 2cm, 5cm,and 10cm.It is found to have an efficiency of 90%. If a 500 kg load is lifted by the machine, how much effort in newtons is applied? what frictional force acts? Show a diagram of the s..
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