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Determine the diameter of the ball. The density of water is 1000 kg/m3 and the acceleration of gravity is 9.81 m/s2 . Answer in units of cm.
She enters the water, her speed is reduced to 1.10 m/s. What is the net average force (magnitude and direction) that acts on her when she is in the water
The drawing shows a boat being pulled by two locomotives through a canal of length 1.00 km. The tension in each cable is 3.00 103 N, and θ = 23.0°. What is the net work done on the boat b
A long, thin solenoid has 811 turns per meter and radius 2.5 cm. The current in the solenoid is increasing at a uniform rate of 75.9 A/s. What is the magnitude of the induced electric field 0.207 cm
Find the angles at which one would observe the first order maximum, the second order maximum, and so forth.
A single-turn current loop, carrying a current of 3.30 A, is in the shape of a right triangle with sides 50.0, 120, and 130 cm. The loop is in a uniform magnetic field of magnitude 86.0 mT whose di
An electric motor rotating a workshop grinding wheel at a rate of 111 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.00 rad/s2. (a) How long d
Water is pumped into a storage tank from a well delivering 17.0 gallons of water in 33.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the p
A sphere of mass 2.7 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 41° with the vertical. Find the tension in the cord
A hiker's trip consists of three segments. Path A is 8.0 km long heading 60 degrees north of east. Path B is 7.0 km long in a direction due east. Path C is 4.0 km long heading 315 degrees countercl
The permeability of free space is 4pi x 10^-7 T m/A. What is he magnetic field at the proton due to the orbital motion of the electron?
The permeability of free space is 1.25664 x 10^-6 T m/a. Compute the magnetic field strength that this motion produces at the location of the proton.
A wooden bucket filled with water has a mass of 75 kg and is attached to a rope that is wound around a cylinder with a radius of 0.075 m. A crank with a turning radius of 0.25 m is attached to the e
4 kg object is subjected to two forces . the object is at rest at the origin at time t=0 (a) what is the object's acceleration? (b) what is its velocity at time t=3? (c) where is the object at time
An 18.8 g mass is attached to a horizontal spring with a spring constant of 8.2 N/m and released from rest with an amplitude of 25.9 cm. What is the velocity of the mass when it is halfway to the e
Four 8.0 kg spheres are located at the corners of a square of side 0.58 m. Calculate the magnitude and direction of the gravitational force exerted on one sphere by the other three.
A 191 kg crate is pulled along a level surface by an engine. The coefficient of kinetic friction between the crate and the surface is 0.619. The acceleration of gravity is 9.8 m/s2 . How much power
The jet is traveling at 45.0 m/s when the pilot recieves the message. what is the acceleration of the plane if it takes the pilot 5.00 s to brign the palne to a halt?
The motion is described by the following equation. y = (4.5 cm) sin [(0.73 rad/s)t] What is the maximum kinetic energy of the body?
Determine the distance between the central bright fringe and the third dark interference fringe formed on a screen parallel to the plane of the slits and 1.00 m away.
Joe pushes down the length of the handle of a 12.9 kg lawn spreader. The handle makes an angle of 46.2 with the horizontal. Joe wishes to accelerate the spreader from rest to 1.39 m/s in 1.5 s. Wha
A parachutist of mass 50.0 kg jumps out of an airplane at a height of 1 000 m. The parachute deploys, and she lands on the ground with a speed of 5.0 m/s. How much energy was lost to air friction d
constant acceleration of -10.8 m/s2. If the car is moving at 69 m/s, how many meters will it travel before it stops.
As part of a safety investigation, two 1200 {rm kg} cars traveling at 24 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) the car that hits a line of water barre
A 1510 kg car rests on four tires, each of which is inflated to a gauge pressure of 210 kPa. What is the area of contact of each tire with the road, if the four tires support the weight equally?