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A classroom demonstration is done with an Atwood machine. The masses are m1 = 1.0 kg and m2 = 1.14 kg. If the larger mass descends a distance of 3.8 m from rest in 3.4256 s, what is the acceleration of gravity at that place? (Ignore the effects of pulley mass and friction.)
A hot-air balloon is rising upward with a constant speed of 2.68 m/s. When the balloon is 5.62 m above the ground, How much time elapses before the compass hits the ground
If the Young's Modulus of the material is made from is 310 MN/m^2 what is the effective spring constant of the cord for stresses and strains where Young's Modulus is valid
At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.
When light is incident on a surface the critical angle is 40.0 degrees. The two materials are air and glass. What is the polarization angle for this light
The position of a particle moving along the x axis is given by x = (32 + 40t - 8.0t2) m, where t is in s. What is the average velocity during the time interval t = 1.0 s to 3.0 s?
In one cycle, a freezer uses 780J of electrical energy in order to remove 1730J of heat from its freezer compartment at 10.0 oF. What is the coefficient of performance of this freezer
A point on the edge of a 2 m diameter wheel moves at a speed of 5 m/s with respect to the axle. What is the angular velocity of the wheel
A 92.0-kg astronaut and a 1200-kg satellite are separated from the space ship, and are both at rest with respect to the ship without any method of getting to the ship. how far away from the ship is the satellite
A 50g ball of clay traveling at speed v0 hits and sticks to a 1.0kg block sitting at rest on a frictionless surface. what os the speed of the brick after the collision
Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. What is the resistivity of the leaf tissue
A 5cm object is 30 cm in front of the converging lens with a focal length of 15 cm. calculate the image height
A 3.9 kg block of copper at a temperature of 70oC is dropped into a bucket containing a mixture of ice and water whose total mass is 1.2 kg, How much ice was in the bucket before the copper block was placed in it
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