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Q. A physics book slides off a horizontal table top with a speed of 1.20 . It strikes the floor after a time of 0.410 . Ignore air resistance.Find the height of the table top above the floor.
Q. A civil engineer has to desing a road in which ther is a curve with a radius of 300m. The road will have a maximum speed limit of 110km per hour. At what angle should the road bank on the curve so that no frictional force is needed by a vehicle travelling around the curve at the speed limit.
A highway curve with a radius of 550 m is banked properly for a car travelling 130 km/h. If a 1660- kg Porshe 928S rounds the curve at 250 km/h, how much sideways force should the tires exert against the road if the car does not skid.
A parallel beam of light from a He-Ne laser, with wavelength of 644 nm, falls on two very narrow slits 0.05 mm apart. How far apart are the fringes in the center of the pattern on a screen 2.2m away.
Quadrupole moments in the shell model
A 3.5 m long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 70 kg construction worker stands at the far end of the beam.
Two cars have a head on collision. Both were traveling at 42m/s toward each other. Car A has a mass of 722 KG. Car B has a mass of 848KG. After impact, car A is moving backward at 2 m/s. What is car B's velocity after impact.
A 2.50-g bullet travelling at a speed of 425 m/s, strikes the wooden block of a ballistic pendulum, such as that Figure in 7.12. The block has a mass of 215 g. Calculate the speed of the bullet/block combination quickly after the collision.
What will be the equilibrium temperature while a 238 block of copper at 230 is placed in a 133 aluminium calorimeter cup containing 831 of water at 16.0.
What is the speed of the water leaving the nozzle
Dan is gliding on his skateboard at 2.00m/s. He rapidly jumps backward off the skateboard, kicking the skateboard forward at 8.00m/s (as measured by an observer on the ground). Dan's mass is 60.0kg and the skateboard's mass is 7.00kg.
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
The total force on a one foot wide section of the inclined portion of the wall and the location and line of action of the resultant force.
W hat is the velocity of the gasoline in the tube
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