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A woman on a bridge 88.9 m high sees a raft floating at a constant speed on the river below, Find the speed of the raft
A 2.4 kg breadbox on a frictionless incline of angle %u03B8 =43 is connected, by a cord that runs over a pulley, What is the speed of the box when it moves 10 cm down the incline
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
Suppose the temperature of 4.67 L of ideal gas drops from 354 K to 275 K. Find the number of moles of gas
A cylinder contains 2.15 mol of helium gas at 22.5°C. Assume that the helium behaves like an ideal gas. Find the total internal energy of the system
A large sponge has forces of magnitude 12 N applied in oppositedirections to two opposite faces of area 42 cm^2. What is theshear modulus of the sponge
The dimensions of the picture on a 35.0{\rm mm} color slide are x = 24.0{\rm mm} {\times}y = 36.0{\rm mm}. What are the dimensions of the image on the screen
How much work is needed to push a 137- kg packing crate a distance of 2.65 m up an inclined plane that makes an angle of 27 o with the horizontal, when inclined plane is frictionless
A 0.5 kg lump of clay is moving at 2 m/s in the +x direction of some arbitrarily chosen coordinate system. What is the velocity of the pair after the collision
A 1 kg rubber ball is bounced off a hard floor just prior to its hitting the floor, the ball has a downward speed of 2 m/s. find Is the collision elastic or inelastic
A 1 kg object rests at the top of a quarter pipe cylindrical ramp of radius 1 m. What work was done on the object by this frictional force
An electron has an initial velocity of 3.00 multiplied by 106 m/s in a uniform 10.0 multiplied by 105 N/C strength electric field. How long does it take the electron to come to rest
An air parcel with mass = 150 kg is traveling at 15 meters per second due east at 38 degrees North at an altitude of 5500 meters. What is the total force exerted on the air parcel
In a laboratory experiment, a Physics Major is given a stopwatch. a meterstick, and a simple pendulum, what value will he obtain for the acceleration due to gravity
An object is moving in simple harmonic motion with an amplitude of 16 cm and a frequency of 2.0 Hz. Calculate the maximum magnitude of the velocity
A horizontal spring-mass system has low friction, spring stiffness 155 N/m, and mass 0.6 kg. What is the maximum stretch during the motion
A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on with a 0.580 kg ball at rest. what will be the speed and direction of each ball
A biophysics experiment uses a very sensitive magnetic field probe to determine the current associated with a nerve impulse traveling along an axon. what is the peak current carried by the axon
Compute the angular momentum of the earth arising from the following motions Earth's orbital motion around the sun
The three-toed sloth is the slowest moving land mammal. On the ground, the sloth moves at an average speed of 0.035 m/s, how much further would the tortoise have gone relative to the sloth
A charge +7.4 %u03BCC is placed at the center of the hollow spherical conductor with the inner radius 3.2 cm, What is the total charge on the interior
A merry-go-round starts from rest and accelerates uniformly over 11.0 s to a final angular velocity of 7.50 rev/min, Find the angular acceleration of the merry-go-round
A driver travels 10 km east, 20 km north and 50 km in a direction 30 degrees south of west. What is the drivers average velocity if the trip takes 90 minutes
A 75kg skater starts his skate at 4m above ground, the horizontal distance to the bottom of the track is 6m. Calculate the speed of the skater at the bottom of the track
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine