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A force of k is applied to an object for a small fraction of a second, t_k, less than the duration of one frame, t_f. Our simulation doesn't support applying forces for less than an entire frame, s
Find the tension in the spring. If spring is removed,what horizontal force would have to be applied to the mass to keep it at rest?
For a circular parallel-plate capacitor whose radius is 0.1 m, and which the separation between the plates is 2mm, what is the capacitance of this capacitor?
In all three motion graphs, the unit of time is in seconds and the unit of displacement is in meters. In plotting the points, round-off the coordinate values to the nearest integer. Construct a gra
A 205-kg crate is pushed horizontally with a force of 725 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
A 23.7-mW laser beam of diameter 2.11 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror.
A large flat sheet of charge has a charge per unit area of 7.4 μC/m2. Find the electric field intensity just above the surface of the sheet, measured from its midpoint. Answer in units of N/C.
The goal is to find the height of the target above sea level. (a) Draw a diagram of the situation, identifying the two triangles that are important to finding the solution.
Two horizontal forces, 233 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume th
A 50.0 kg pole vaulter running at 10.0 m/s vaults over the bar. Assuming that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was th
A crate slides down a ramp with an acceleration of 0.657 m/s/s when the ramp makes an angle of 37.2 º to the horizontal. At what angle would the crate slide with constant velocity?
An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 18.0 µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along
Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion. Using the position of the bob at its lowest point as the reference level, determine the tot
A 10.4 kg block sits on a frictionless horizontal table. The block is attached to a horizontal ideal string that goes over an ideal pulley and is connected to another identical 10.4 kg block that h
What is the velocity of Toyota Prius relative to the VW Passat when they are 350 apart, just before they meet?
A man pushes on a piano with mass 170 so that it slides at constant velocity down a ramp that is inclined at 19.4 above the horizontal floor. Neglect any friction acting on the piano. Calculate the
Modern electroplaters can cover a surface area of 120 m2 with one troy ounce of gold (volume = 1.611 cm3). What is the thickness of the electroplated gold?
A diving board oscillates with simple harmonic motion of frequency 3.63 cycles per second,What is the maximum amplitude with which the end of the board can vibrate in order that a pebble placed the
At the end of a bobsled run, the sled comes to a stop after the brakeman applies the brakes. If the bobsled is moving at 100 km/h at the end of a run, (a) how much time does it take to stop after t
A rifle bullet with a muzzle speed of 350 m/s is fired directly into a special, dense material that stops the bullet in 36 cm. Assuming the bullet's deceleration to be constant, what is its magnitu
A projectile is fired horizontally from a gun that is 52.0 m above flat ground, emerging from the gun with a speed of 330 m/s. (a) How long does the projectile remain in the air? (b) At what horizo
A box slides down a 29° ramp with an acceleration of 1.10 m/s2. Determine the coefficient of kinetic friction between the box and the ramp?
The press box at a baseball park is 35.0 ft above the ground. A reporter in the press box looks at an angle of 14.7 degree below the horizontal to see second base. What is the horizontal distance f
A potter's wheel having a radius 0.55 m and a moment of inertia 12 kg·m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exer
A small fly of mass 0.27 grams is caught in a spider's web. The web vibrates predominately with a frequency of 4.5 Hertz. What is the value of the effective spring constant stiffness constant for t