Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy of the capacitor at the moment when the capacitor is half filled with the diel
What is the original temperature (in Celsius) of the cylinder? The specific heat of water is 1 cal/g·K, and of copper is 0.0923 cal/g·K. The latent heat of vaporization of water is 539
Precisely 3.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 1.80 m/s^2, how much time passes before the police car overtakes the speed
Let us now consider a different R-C circuit. This time, the capacitor is initially charged (), and there is no source of EMF in the circuit. (Intro 2 figure) We will assume that the top plate of the
A horizontal ray of white light incident perpendicularly on the vertical face of a prism made of crown glass. The ray enters the prism, and part of the light undergoes refraction at the slanted face
A charge of +9q is fixed to one corner of a square, while a charge of -6q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square
A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18
One mole of air at 350 K confined in a cylinder under a heavy piston occupies a volume of 6.1 L. The heat capacity of air under constant volume is (5/2)R. Find the new volume of the gas if 3.9 kJ i
At the end of the firing period, the craft has velocity components of vx = 3835 m/s and vy = 4748 m/s. Find the magnitude and direction of the initial velocity. Express the direction as an angle wit
A 55.0 kg girl weighs herself by standing on a scale in an elevator. What is the force exerted by the scale when the elevator is descending at a constant speed of 10 m/s?
A rifle with a barrel length of 56cm fires a 12g bullet with a horizontal speed of 350m/s . The bullet strikes a block of wood and penetrates to a depth of 10cm. what force does the block put on the
In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find the acceleration of the sled and child.
Find the force of the seat on the child at the lowest point.
A 71 kg window washer stands on a 179 kg platform suspended on the side of a building. An electric motor raises the platform 58 m up the side of the building in 7.2 s. How much power is generated by
An object can be in equilibrium if the object is acted on by only A single nonzero force, Two forces that point in mutually perpendicular directions, Two forces that point in directions that are not
what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out
To move a refrigerator of mass 110 kg into a house, a mover puts it on a dolly and covers the steps leading into the house with a wooden plank acting as a ramp. The plank is 11 m long and rises 3.9
If a curve with a radius of 80m is properly banked for a car traveling 66 {rm km/h}, what must be the coefficient of static friction for a car not to skid when traveling at 98 km/h
This situation is like that of a car on a curve that is banked at an angle of 26°. If she tries to make the turn without slowing down, what is the minimum distance from the seawall that she can
As the snow begins to melt, the coefficient of static friction decreases and the snow eventually slips. Assuming that the distance from the chunk to the edge of the roof is 5.6 m and the coefficient
If the blocks are now accelerating upward (due to the tension in the strings) with acceleration of magnitude a. Find T2, the tension in the lower rope and T1, the tension in the upper rope.
A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120 m starts from rest and accelerates at 31.0 rad/
The electric field strength is 4.50×104 N/C inside a parallel-plate capacitor with a 1.90 mm spacing. A proton is released from rest at the positive plate. What is the proton's speed when it r
A circular curve of highway is designed for traffic moving at 93 km/h. Assume the traffic consists of cars without negative lift. (a) If the radius of the curve is 210 m,
Bonnie and Clyde are sliding 500 {rm kg} bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 385 {rm N} of force while Bonnie pull