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A pendulum of length I = 2 in and mass m = 0.2 kg is swinging from the ceiling. The amplitude of the oscillation is θmax = 10 degrees.
1. Compute the total force acting on the bob at the lowest point P of the trajectory Give magnitude and direction.
2. Compute the tangential acceleration of the object at the lowest point P of the trajectory. Hint: use the second law.] Can we say that instantaneously this is a uniform circular motion?
3. If the bob was just hanging from the ceiling without swinging, would the tension in the rope be less than, greater than, or equal to the tension you found in question 2? Why?
a child rolls a 0.685kg basketball up a long ramp. the basketball can be considered a thin walled hollow sphere. find the maximum vertical height increase of the ball
An alpha particle is a nucleus of helium. It has twice the charge and four times the mass of the proton. When they were very far away from each other, but headed toward directly each other, a proton and an alpha particle each had an initial speed ..
a table has a mass of 500 kg. the floor is known to have a vibration amplitude of 1 micro-meter at a frequency of 200
A small particle of mass 0.225kg is moving on a circle of radius 2m. Find the angular momentum of the particle when its speed is 8m/s
Five grams of nitrogen gas at an initial pressure of 3.0 atm and at 20 C undergo an isobaric expansion until the volume has tripled.
The Moon has an angular size of 0.50 degrees when viewed with unaided vision from Earth. What is the angular size of the Moon as seen through this telescope
a 2-kg mass at the end of a 1.5m rod is rotating in a vertical circle with a constant angular velocity of 8.5
A 51.5 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.110 m/s. How much work must be done to stop it
Suppose that the hail comes straight down at a mass rate of m/?t = 0.030 kg/s and an initial velocity of v0 = -10 m/s, calculated the force exerted by the hail on the roof
On a very warm day(30C) you are sitting at the shallow end of a swimming pool teaching a young child to swim. How long is the pool
You are traveling in a spaceship at a speed of 0.56c away from Earth. You send a laser beam toward Earth traveling at velocity relative to you. What do observers on the Earth gauge for the speed of the laser beam?
One piece of 50 g ice at 0C is added to m grams of water at 25C. The system is insulated from outside and the exchange of heat is limited to ice and water only. find the total change in entropy
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