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A long solenoid has a length of 0.69 m and contains 1395 turns of wire. What is the magnitude of the magnetic field within the solenoid
A 0.600 kg hammer is moving horizontally at 8.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. What was the average force exerted on the nail
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.55 104 m/s, and the radius of the orbit is 5.40 106 m. What is the orbital speed of the second satellite
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. What is the ball's direction of motion just before it is caught
Suppose a block of mass M is sliding down an inclined plane which makes an angle t with the horizontal. What is the work done by friction as the block travels a distance d along the plane
A 7.80-g bullet moving at 500 m/s penetrates a tree trunk to a depth of 5.40 cm. find the average frictional force that stops the bullet
A 1000-kg car is travelling west at 17.0 m/s toward an intersection. What is the angle of their velocity after the collision relative to the east direction
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 3.00 km. What is the distance they travel
In a "Rotor-ride" at a carnival, people pay money to be rotated in a vertical cylindrically walled "room." what is the minimum coefficient of static friction so that the people will not slip down
A 63.5-kg runner has a speed of 5.80 m/s at one instant during a long-distance event. If he doubles his speed to reach the finish line, by what factor does his kinetic energy change
Starting from rest, a 6.00-kg block slides 3.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436. Determine the work done by the
A rifle with a barrel length of 59cm fires a 10g bullet with a horizontal speed of 440m/s. How long does it take the bullet to come to rest after entering the wood
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. What is Sam's top speed
A swimming duck paddles the water with its feet once every 1.6s, producing surface waves with this period. How far apart are the crests behind the duck
A ball thrown into the air lands on the same horizontal level, 31 m away, and 2.6 s later. Find the magnitude of the initial velocity
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown
The intake to a hydraulic turbine installed in a flood control dam is located at an elevation of 10 m above the turbine exit. what is the mass flow rate fo water, in kg/s
A 2.8-cm-diameter parallel-plate capacitor has a 2.4mm spacing. The electric field strength inside the capacitor is 1.4×105V/m. How much charge is on each plate
A car is traveling along a straight road at a velocity of +39.0 m/s when its engine cuts out. For the next ten seconds the car slows down, Find the velocity of the car at the end of the initial ten-s
A beam of 16MeV deuterons (m=2mp) from a cyclotron falls on a copper block. The beam is equivalent to a current of 15 microA, At what rate do deuterons strike the block
A basketball is thrown horizontally with an initial speed of 4.90 m/s. A straight line drawn from the release point to the landing point makes an angle ? = 27.0° with the horizontal. What was th
A ball rolls off a table and falls 0.81 m to the floor, landing with a speed of 5.5 m/s. What initial speed must the ball have if it is to land with a speed of 6.3 m/s
On a hot summer day a young girl swings on a rope above the local swimming hole. how high above the water was she when she let go of the rope
A soccer ball is kicked with an initial speed of 9.8 m/s. After 0.200 s it is at its highest point. What was its initial direction of motion
A hot air balloon decends toward the ground with a velocity of (1.6 m/s)y hat. A champagne bottle is opened to celebrate takeoff, How long does the cork remain in the air