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A 200 kg cart moving 5 m/s to the right collides with a 150 kg cart moving to the left at 2 m/s. After the collision, the carts stick together.
a) Find the velocity with which the carts move off after the collision (speed and direction).
b) Show, using a calculation, whether or not the collision is elastic (you may NOT assume the answer. You must show it with a calculation).
c) Discuss whether or not your answers to parts a and b are reasonable. Give specific reasons why or why not you think they are reasonable.
Two large identical flat metal plates are placed parallel to one another, seperated by a small distance compared to their linear size. One plate is given a charge per unit area 2.50E-5 C/m2 and the other a charge per unit area -2.50E-5 C/m2. Using..
A cyclotron is used for the acceleration of alpha particles. The radius of the cyclotron?s dee is 2 m, and the magnetic flux density in the dees is 0.8 T. What is the velocity of the alpha particles when they exit the cyclotron? The alpha particle..
Several bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.21 10-8 m, and a tangential speed at the rim of 2.32 10-5 m/s. What is the angular sp..
What is the velocity of the plank relative to the surface of ice.
A converging lens (f=+20cm) is located 60cm to the left of a diverging (f=-30cm). What is the overall magnification of the object
A typical photovoltaic cell delivers 4.2×10-3 W of electric energy when illuminated with 0.12 W of light energy. What is the efficiency of the cell? An "energy bar" contains 27 g of carbohydrates. If the energy bar was his only fuel, how far could..
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. What was the speed of the lighter car just after the collision
Police investigators, examining the scene of an accident involving two cars, which nearly came to a stop before colliding, Estimate the initial speed of that car assuming a level road
As soon as a traffic light turns green, a car speeds up from rest to 50.0 miles per hour with a constant acceleration of 9.50 mi/h•s. Compute for how long is the bicycle ahead of the car
A 10 g particle is undergoing simple harmonic motion with amplitude of 2.0 x 10-3 m and a maximum acceleration of magnitude 8.0 x 103 m/s2. What is the period of the particle
Two metal cubes, one copper (Cu) and one aluminum (Al), with 4 cm edges are arranged as shown in Figure 1. Find (j) the thermal resistance of each cube, (ii) the thermal resistance of the two-cube system, (iii) the thermal current I and (iv) the t..
The height of the haystack is 1 meter. You press down on topof the stack and discover that to compress the stack by 25cm, What is the haystack's spring constant
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