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A Breadbox is made to move along an x-axis from x= 0.15 m to x=1.20 m by a force with a magnitude given by F(x) = e^-2x^2, with x in meters and F in Newtons. How much work is done on the breadbox b
A parallel-plate air capacitor has a capacitance of 500pF and a charge of magnitude 0.250uC on each plate. The plates are 0.700mm apart. What is the electric-field magnitude between the plates? What
What is potential difference across the capacitor if the spacing between the plates is 1.40mm? (answer has to be in V)
When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of 2.27 m/s. The mass stops a distance S2 = 1.9 m along the level part of the slide. The distance S1
The block compresses the spring a maximum distance of 13.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.100. What is the work don
A 32.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 20.00 m. When she is partway down the slide, at a height h2 of 8.00 m, she is moving at a speed of 7.
The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m. (Neglect air resistance.) (a) How high was the plane when the decoy was released?
Suppose you throw a 0.053-kg ball with a speed of 11.3 m/s and at an angle of 31.5° above the horizontal from a building 13.3 m high. (a) What will be its kinetic energy when it hits the ground?
If the CD rotates clockwise (let's take clockwise rotation as positive) at 500 (revolutions per minute) while the last song is playing, and then spins down to zero angular speed in 2.60 with constan
Comet orbits are highly elliptical. A periodic comet orbiting a two solar mass star with an orbital period of 200 years comes to a periastron distance of 0.7 AU. Using only Keplers third law calcula
A planar slab of thickness of 3.00 cm has a uniform volume charge density of 3.20 × 10-2 C/ m3. Find the magnitude of the electric field at all points in space both inside and outside the slab
A square metal plate of edge length 12.0 cm and negligible thickness has a total charge of 7.50×10-6 C. Estimate the magnitude E of the electric field just off the center of the plate (at, say,
Two small spheres spaced 50.0 centimeters apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.40 x 10^{-21}
An elevator and its load have a combined mass of 1450 kg. Find the tension in the supporting cable when the elevator, originally moving downward at 13 m/s, is brought to rest with constant accelera
A police car is traveling east at 40.0 m/s along a straight road, overtaking a car ahead of it moving east at 30.0 m/s. The police car has a malfunctioning siren that is stuck at 1 000 Hz. What is t
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 4.50t2 - 3.50t3, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the partic
Tired of walking down the stairs a 75 kg engineering student designs an ingenious device for reaching his third floor dorm room. A 60 kg block at rest on the ground is attached to a rope that passes
Two lenses with focal lengths f1=5cm and f2=10cm are located 5cm apart. If an object 2.50 high is located 15.0 cm in front of the first lens, find the position and size of the final image.
A 5.0kg box is pulled horizontally with a 45-N force that makes angle of 40 degrees with the horizontal. The coefficient of kinetic friction of the surface is 0.20 What is the magnitude of the accel
A decorative light fixture in an elevator consists of a 2.0 kg light suspended by a cable from the ceiling of the elevator. from this light a separate cable suspends a second .80 kg light.
Consider an annular disk in the xy plane, centered on the origin. (An annular disk is a disk with a hole missing from the middle.)
If the technician holds the probe at an angle such that the blood is flowing directly away from the probe the speaker produces sound at fb = 200 Hz. Using this information and the fact that the spee
What is the electric field strength inside the capacitor if the spacing between the plates is 1.40mm? (answer has to be in V/m)
When the ball reaches the (x, y) point (0.30 m, 0), what is the net force acting on it from the spheres, in unit-vector notation?
A singly charged ion of unknown mass moves in a circle of radius 13.8 cm in a magnetic field of 1.01 T. The ion was accelerated through a potential difference of 7.28 kV before it entered the magne