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A 1.28m long vertical glass tube is filled with a liquid at 20 degrees celcius. How much will the height of the liquid column change when the tube is hearted to 30 degrees celcius?
To get the top spinning, its string is pulled with a tension of 0.30. Explain how long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
an object of mass 39 kg is observed to accelerate with an acceleration of 2.0 m/s^2. If friction is so mall that it can be ignored, what is the force applied to the object in newtons
Suppose a muon produced as a result of a cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
Department Alpha had no beginning inventory. The department added direct materials of $100,000 and conversion costs of $150,000 during the month of July. Materials are added at the beginning of the process and conversion costs are added evenly thr..
An iron ball hangs from a 21.5-m steel cable and is used in the demolition of a building at a location where the acceleration due to gravity is 9.78 m/s2. find the maximum speed of the ball during its swing
As it enters a pipe, a perfect fluid has spped 3.70 m/s. As it exits the pipe, the speed is 10.6 m/s. what is the radius of the pipe at the exit
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 6.00 m/s up the incline. Determine the initial speed of the second sled
A 13.9-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 66.5-N horizontal force. determine the rope\'s angle from the vertical
A hospital needs 1 millicurie of a radioactive pharmaceutical with a half-life of 12 hours. If delivery time takes 3 days, what activity must be shipped to the hospital by the supplier
The coefficient of kinetic friction is 0.350. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
A laser beam is incident on two slits 0.100 mm apart and a screen is placed 4 m from the slits. An interference pattern appears on the screen. what is the wavelength of the laser light
A beam of protons, each with kinetic energy of 40MeV, approaches a step potential of 30MeV. What fraction of the beam is reflected and transmitted
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