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1. A roller-coaster car with a mass of m moves along a smooth track as diagrammed in the graph below. The car leaves point A with no initial velocity and travels to other points along the track. The zero energy level is taken as the energy ot point A.
2. Assume the mass of the car is 65.0 kg and it starts at 30.0 m above the ground Use the graph above to find the kinetic energy, potential energy, and velocity for points C, D, E, F, and G to complete the table.
3. For each location, what do you notice about the sum KEA + PEA compared with the sum AE locallon + PE locallon ?
a particular air conditioner can remove heat from a room at a rate of 150 w. heat is also added to the room through
an airplane with a speed of 89.1 ms is climbing upward at an angle of 48.4 deg with respect to the horizontal. when the
A particle having an electric charge q = 3.20 × 10-19 C is injected into a magnetic field B = 0.30 T with a speed of 1.79 × 107 m/s. obtain the magnitude of the magnetic force on the particle
a camera lens n 1.50 is coated with a thin film of potassium bromide n 1.56 of thickness 87.9 nm. what wavelength in
If the 320-N force is instead pulling the block at an angle of 20.0° what will be the acceleration of the crate be
Two blocks of weights 70.0 and 100.0 N are connected by as massless string and slide down an inclined plane making an angle of 42.0 deg. find the magnitude of the heavier block's acceleration
In a head on collision, a car of mass 1.10 x 10^3 kilogram going northward at 25.0 m/s collides with a car of mass 1.50 x 10^3 kilogram going southward at 30.0 m/s. Obtain the amount of mechanical energy dissipated during the collision
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop at an amusement park. What is the speed of the rider at the top of the loop
The electric field among the plates of a paper-separated (K=3.75) capacitor is 8.28×104V/m. The plates are 2.15mm apart, and the charge on each plate is 0.750 C. Decide the capacitance of this capacitor.
Describe what quantity shows the measurements are consistent with a large amount of dark matter:
A load of steel of mass 6000 kg rest on a flat bet truck. It is held in place by metal brackets which can exert a maximum horizontal force of 8000 N. When the truck is traveling 20 m/s, what is the minimum stopping distance if the load is not to s..
200 grams of ice at -20°C are added to 500 grams of water at +80°C. Assuming that no heat is lost from the ice+water system, compute how much ice remains at equilibrium.
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