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Explain this in some detail with some pictures/diagrams to show and explain the TTT diagram concept
A 50-kg sled is pulled 20 meters over ice at a constant speed. The coefficient of friction between the sled and the ice is 0.13.
2 forces parallel to the X axis do 14.7 Joules of work on a small tray while moving it 20.7 meters in the X direction across a gym floor.
A little red wagon with a mass of 4.60 kg moves in a straight line on a frictionless horizontal surface. It has an initial speed of 10.0m/s.
Two point charges are arranged along the x axis as shown the figure. At which of the following values of x is the electric potential equal to zero?
A block with a mass m is pulled along a horizontal surface for a distance +x by a constant force F at an angle theta with respect to the horizontal.
A 230 N sphere 0.20 m in radius rolls, without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal.
"Energy can be converted to one form or another, but cannot be created or destroyed." This the theory of:
How much work is required, using an ideal Carnot refrigerator, to change 0.500 kg of tap water at 10.0°C into ice at -20.0°C?
How far would the box have slid if the friction coefficient didn't increase, but instead had the constant value of 0.100?
In moving out of a dormitory at the end of the semester, a student does 1.6 x 10^4 J of work. In the process, his internal energy decreases.
An arrow, starting from rest, leaves the bow with a speed of 25.0 m/s. If the average force exreted on the arrow by the bow were doubled.
Calculate the velocity and the kinetic energy of the hammer/pile combination immediately after impact.
If the person exerted an effort force of 250 newtons to roll the barrel along the ramp, what is the efficiency of the ramp?
What is the work done by the gravitational force when the shot has risen to a height of 2.13 m above the ground.
Does the answer to part b depend on weather the ball is moving up or down at a height of 20m? Please explain.
Suppose we have two blocks composed of 6 harmonic oscillators each and have 3 quanta in each initially.
The goal is to give a guitar maker a list of the separation between successive frets on the neck of the guitar. In Figure, the frets
When an electron released from rest at point A arrives at point C, its kinetic energy is KA.When the electron is released from rest at point B.
The magnetic susceptibility per unit volume of a magnetic solid is given by x = A/(T-theta) where A and theta are constants independent of magnetic field.
A particle of mass m is moving on a frictionless horizontal table and is attached to a massless string, whose other end passes through a hole.
Calculate the work done on the tool by F if this displacement is along the straight line y=x that connects these two points.
Assume that the earth and the moon have circular orbits (which is almost true) and that the periods of their orbits are 365 days and 28.0 days, respectively.
What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing?
What would x be for the same h and y as in part A if you let a silver dollar roll down the track? You can ignore the work done by friction.