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A point charge of -1.9 µC is at the center of a cubical Gaussian surface with a volume of 3600.0 cm3. What is the net electrical flux through the surface of the cube ?
The two masses are then made to rotate about their center of mass on a frictionless table at a rate of 9 rad/s. As they are rotating, the string untangles and lengthens to 3.8 m. What is the angular
A piston exhibits simple harmonic motion with an amplitude of .1m. If it passes through the center of its motion with a speed of .5m/s what is the period of oscillation?
You pull a 70 kg block up a 400 incline so that the tension of the rope is parallel to the incline. The block starts from rest and the incline has a coefficient of friction of 0.4. The tension is su
A car speeds along the curved exit ramp of a freeway. The radius of the curve is 78 m. A 76 kg passenger holds the arm rest of a car door with a 220 N force to keep from sliding across the front sea
A 15.00 kg block starts from rest at the top of a 25.0 m long 30.0° incline. Its kinetic energy at the bottom of the incline is 1837.5 J. How much work is done by friction?
Find the location of the center of mass of a nonuniform rod 0.44 m in length if its density varies linearly from 0.90 g/cm at one end to 5.35 g/cm at the other end. Specify the center-of-mass locati
Write the summation as an integral, and simplify the integral as much as possible. State explicitly the range of yourintegration variable. Evaluate the integral.
In a photoelectric effect apparatus, light of wavelength 650 nm illuminates a metal surface. The resulting current is stopped completely when - 0.4 V is applied to the anode. What is the maximum kin
A sample of CO2 gas has a mass of 0.2 kg. (Atomic mass of C = 12; of O = 16). It is originally at T = 450 K and V = 0.1 m3 . It undergoes a free expansion to twice its original volume in a chamber
An ideal gas is in an initial state of 35 C, 150 kPa and 0.2 m3. It undergoes a quasi-static isothermal expansion until its pressure is 95 kPa.
A parallel-plate capacitor is charged with 0.220 C. If the area of each of its plates is 0.620 m2, what is the electric field energy density between the plates?
A 1.50 mm-diameter glass bead is positively charged. The potential difference between a point 1.50 mm from the bead and a point 3.60 mm from the bead is 460V . Note: The given distances are measure
The electric field strength between the "plates" of this capacitor is 6.11×105 V/m. If the dielectric were replaced with a vacuum, what would the strength of this electric field become, assumin
A Carnot engine operating between energy reservoirs at temperatures 300 K and 525 K produces a power output of 1040 W. What are each of the following?
A coin (floating in outer space) of mass m and radius R is initially spinning around the axis perpendicular to its plane, with angular speed w3.
The free end of the stick is pivoted on a pole and the sphere rolls on the ground without slipping with its center moving in a circle of radius R with frequency Ω. What is the normal force bet
What if the track had been considerable off level? How much energy would have lost to work against gravity as M traveled a distance h down the track when the track slanted uphill at some angle theta
Draw appropriate diagram for solving the problem. Determine the velocity of the bird with respect to the wind at any given instant of time. What is the position of the bird with respect to the groun
A flat surface of area 2.50 m2 is rotated in a uniform electric field of magnitude E=5.35x105 N/C. Determine the electric flux through this area when the electric field is parallel to the surface.
Bob is pushing a box across the floor at a constant speed of 1.3 m/s. applying a horizontal force whose magnitude is 45 N. Alice is pushing an identical box across the floor at a constant speed of 2
(a) what is the magnitude of the average acceleration of a skier who, starting from a rest reaches a speed of 8.0m/s when going down a slope for 5.0 s? (b) how far does the skier travled in this tim
A 8 kg box with initial speed 8 m/s slides across a floor and comes to a stop after 1.8 seconds. What is the coefficient of kinetic friction? How far does the box move?
What is the compression of the steel cube? That is, what is the small change in height of the steel cube due to the load it supports?
Give your end of the slinky a push with your hand.This compresses the releases energy. Notice that the energy moves foward. It moves in the direction of its length, just like a longitudinal wave. Wh