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Q1. Two automobiles of equal mass approach an intersection. One vehicle is travelling with velocity 13 m/s toward the east and the other is travelling north with speed v2i. Neither driver sees the other. The vehicles collide in the intersection and stick together, leaving parallel skid marks at an angle of 55.0 north of east. The speed limit for both roads is 35mi/h, and the driver of the northward-moving vehicle claims he was within the speed limit while the collision occurred. Is he telling the truth?
Q2. A 4.5 kg ham is thrown into a stationary 15kg shopping cart. At what speed will the cart travel if the ham had an initial speed of 2.20m/s?
A 37-kg girl is bouncing on a trampoline. All through a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 215 J from 430 J. How high does she rise during this interval? Avoid air resistance.
Two bicycle tires are set rolling with the equivalent initial speed of 5.0 m/s along a long, straight road, and distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {rm psi} and goes the dist..
All distant galaxies are moving away from us. Describe why this does not imply that we are at the center of universe.
A lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. A sailor on the deck of a ship sights the top of the lighthouse at the angle of 30.0 above the horizontal.
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
A jeweler working with a heated 43 gram gold ring must lower the ring's temperature t make it safe to handle. If the ring is initially at 94 degrees Celsius, what mass of water at 22 degrees Celsius is necessary to lower the ring's temperature to 38 ..
In the lungs there are tiny sacs of air that are called alveoli. An oxygen molecule (mass = 5.30 x 10-26 kg) is trapped within a sac, and the uncertainty in its position is 0.140mm. What is the minimum improbability in the velocity of this oxygen ..
The acceleration due to gravity on the surface of the moon is about g/ 6. If a pendulum has a period T on earth what will its period be on the moon?
An electron with the initial speed of 4.00×10^5 is brought to rest by an electric field. What was the initial kinetic energy of electron, in electron volts.
Portray how asynchronous simulation can be used to predict the motions of this system and outline the data structures that would be necessary to implement such a program.
Find out the vertical component of the reaction force
What is an average speed of this train
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