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1. A rifle of 3.0 kg is fired. The velocity of a 10-gbullet at the muzzle is 300 m/s. It takes 0.005 s for the bullet to reach the muzzle. Discover a) the average force acting on the bullet; b) the recoil velocity of the rifle.
2. A 1500-kg car at rest at a stop sign is hit from behind by a 2500-kg truck at a speed of 10 m/s. They are entangled and skid together for a distance of 4.8 m. Discover a) their speed right after the collision; b) the acceleration through the skid.
3. A 3200-kg satellite revolves in a uniform circular motion around the Earth at a height of 500 km. Discover a) the gravitational force due to the Earth; b) the speed of the satellite.(The mass of the Earth is 5.98 x 10 24 kg and the radius of the Earth is 6370 km.)
Find the magnitude of the net force on arigid square loop of wire of side length l =6.36 cm. The center of the loop is 10.10 cm from the wire and theloop carries a current of 10.0 A.
A beam contains 3.0 x 106 doubly charged positive ionsper cubic centimeter, all of which are moving north with a speed of5.4 x 105 m/s. What is the magnitude of the currentdensity?
What electric potential energy will a fourth charge q4 = 4mC and located at the origin with respect to the other three charges experience and what is the pendulums period for small angle oscillations?
A 2.1 kg mass is attached to a 0.4 m long massless string andswings as a pendulum. what is the maximum tension in the string
An athlete does the 100 m dash. If observers on a spaceship moving with a speed of 0.741c relative to Earth see the athlete's run, find the time that was recorded on Earth
A 5.50-mol sample of H2 gas is contained in the left side of the container shown below, What is the entropy change of the gas
A fan is running at 898 rpm when the power goes out. It makes 1,311 complete revolutions before it finally stops. What was the angular acceleration
A precious-stone dealer wishes to find the specific heat capacityof a 0.040-kg gemstone. What is the specific heat capacity of the specimen
what is the power lost by a transmission line (made of Al) carrying 10 kA of current? By what percentage would the power loss change if the transmission line was switched to Cu
A hydraulic lift is used to jack a 1070 kg car 13 cm offthe floor. The diameter of the output piston is 18 cm, and theinput force is 250 N. What is the area of the input piston
An automobile can be considered to be mounted on four identicalsprings as far as vertical oscillations are concerned. The springsof a certain car are adjusted so that the oscillations have afrequency of 2.62 Hz.
suppose the radius of the ball is very small compared to other length scales in the problem. Take starting level as step 0, the next step down as step 1, and so on.
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