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Q1. A spring with a spring constant of 2.0 × 102 N/m is attached to a 1.7 kg mass and then set in motion. What is the time of the mass-spring system?
Q2. A roller coaster, (h1 = 35 m, h2 = 12 m, h3 = 21 m), is pulled up to point A where it and its screaming occupants are released from rest. Assume no friction; compute the speed at points B, C and D.
Q3. A car takes 16 s to go from v = 0 to v = 50 m/s at approximately constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value should you use for a?
Then find the force between them as a function of distance h. describe why the sign of the force does (or does not) make sense to you.
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
The cord between the pouch and the person's hand has negligible mass and will break when the tension in the cord is 33.0 N or more. Assume the sling thrower could gradually increase the speed of the stone.
With what tension should a rope with length 3.00m and mass 0.135kg be stretched for transverse waves of frequency 43.0Hz to have a wavelength of 0.720m. What torque does friction exert even as this wheel is slowing down.
What is the speed of crate hit ground
The hemisphere is placed on its flat surface, with the center directly over a 2.5 mm long line drawn on a sheet of paper. What length of line is seen by someone looking perpendicularly down on the hemisphere?
A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..
Eight identical, non-interacting particles are placed in a cubical box of sides L = 0.2 nm. Find the lowest energy of the system (in electron volts) and list the quantum numbers of all occupied states if (a) particles are electrons and (b) particles..
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
A father (m = 90 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast is the father moving.
How much energy is transferred to the water as heat
Polymer diffusion and Calibration of an optical tweezer
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