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A stunt car driver negotiates the frictionless track shown in such a way that the car is barely on the track at the top of the loop. The radius of the track is 9.9 m and the mass of the car is 1800 kg. Find the force of the car on the track when the car is at point . You can treat the car as a point mass.
A 12.7-kg block initially slides at 13.1 m/s on a flat rough surface and eventually stops. what is the entropy change of the system
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
A 255 g oscillator has a speed of 93.0 cm/s when its displacement is 3.90 cm and 74.5 cm/s when its displacement is 6.00 cm
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.10 s after liftoff, the rocket clears the top of its launch platform, Calculate the magnitude of the average velocity of the rocket
When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What is the magnitude of F1? (b) What is the magnitude of F2?
If the activation energy for the vacancy formation is given as 0.77 eV for aluminium at (650 degrees Celcius) ^3, what would be the number of vacancies at 650 degrees Celsius? The atomic weight and the density of aluminium is 26.98 g/mol and 2.62 ..
Water flows trough a normal garden hose at 2 m/s. how fast does the water emerge from the hose nozzle
A man tries to determine the distance to an island offshore by using his knowledge of physics and wave motion. how far away is the island
a ball with mass 1kg is dropped from a height of 6m. the ball is caught by a person 2m above the ground. calculate the potential energy of the ball relative to the ground
Starting from rest, a 12 cm diameter compact disk takes 3.0s to reach its operating velocity of 2000 rpm. Assume angular acceleration is constant. How much torque is applied to the disk
A convex mirror has a focal length of -25.5 cm. Find the magnification produced by the mirror when the object distance is 8.7 cm
A metal wire has a resistance of 10.00? at a temperature of 20.0°C. If the same wire has a resistance of 10.55? at 90.0°C, what is the resistance of this same wire
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