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The energy density inside a certain capacitor is 8 J/m^3. What is the magnitude of the electric ?eld inside the capacitor?
The total electric flux from a cubical box 26.0 cm on a side is -1.90 × 103 N·m2/C. What charge is enclosed by the box?
If sunflower blossoms always pointed straight up (as daisies do), what power would the sunflower disk described in part "a" be receiving at 5:00 P.M.?
Imagine a "free" electron and a "free" proton held midway between the plates of a charged parallel plate capacitor. When released, how do their accelerations and directions travel compare?
Draw the force vectors with their tails at the origin of the coordinate system. The orientation of your vectors will be graded. The exact lengths of your vectors will not be graded but the relative
A cart (with wheels) sits on a horizontal table. The front of the cart is a vertical wall, with mass M = 0.908 kg held against the wall. You want to push the cart forward with an acceleration of ma
Find f, the magnitude of the force of static friction exerted by the wall on the block.
Find F, the magnitude of the force, exerted downward along the handle, that will cause the mop to slide across the floor without acceleration.
A block of ice of mass m slides down an incline that makes an angle θ = 28.6o with the horizontal. In trial 1 there is no friction; the block starts at rest and takes time t to reach the bott
A sled of mass M = 384 kg is being pulled along a horizontal surface by a massless rope that makes an angle of θ = 19.1o up from the horizontal. The rope is pulled with a force of magnitude F
A box of mass m = 5.95 kg sits on a frictionless, horizontal table. A heavy rope is attached to the box, and it is pulled horizontally by a force of magnitude F = 64.2 N. (You can ignore any sag in
An 8.00 {kg} point mass and a 15.0 {kg} point mass are held in place 50.0 {cm} apart. A particle of mass m is released from a point between the two masses 17.0 {cm} from the 8.00 {kg} mass along th
A particle undergoes the following consecutive displacements: 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displacement?
How much resistance must be added to a pure LC circuit with L = 266 mH and C = 1610 pF to change the oscillation frequency by 0.230 percent?
A damped RLC circuit loses 4.80 percent of its electromagnetic energy to thermal energy during each cycle. L = 67.0 mH and C = 1.06 μF. Find the value of R, neglecting its effect on the oscillati
Six mass piece of 100g each are placed on a mass holder of 150g which is hung from a string. calculate the tension in the string.
What is the maximum speed with which a 1200-{rm kg} car can round a turn of radius 80.0 {rm m} on a flat road if the coefficient of friction between tires and road is 0.70?Is this result independen
An 8.50 {rm kg} point mass and a 15.0 {rm kg} point mass are held in place 50.0 {rm cm} apart. A particle of mass m is released from a point between the two masses 19.0 {rm cm} from the 8.50 {rm kg
The crate shown in the figure lies on a plane tilted at an angle theta = 27{rm ^circ} to the horizontal, with mu_k = 0.15.Determine the acceleration of the crate as it slides down the plane.If the
What is the block's speed when it is at a height of 0.25 m above the base of the slide?
At what horizontal distance, x, from the base of the building will the rock strike the ground? Assume the ground is level and that the side of the building is vertical. The acceleration of gravity i
The coefficient of kinetic friction is 0.20. A horizontal force of magnitude 57 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a
Two plane mirrors are separated by 120°, as the drawing illustrates. If a ray strikes mirror M1 at a 65° angle of incidence, at what angle does it leave mirror M2?
A beam of 5 MeV electrons passes through a 300 micro-m silicon detector. Estimate the energy lost by the electrons when crossing 100 micro-m, 200 micro-m, and the full thickness of the detector.
An electron is accelerated through 2450 V from rest and then enters a region where there is a uniform 1.20 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting