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Suppose 5.00 g of hydrogen is separated into electrons and protons. Suppose also the protons are placed at the earth's North Pole and the electrons are placed at the South Pole. What is the resulti
A charged particle A exerts a force of 2.60 µN to the right on charged particle B when the particles are 14.0 mm apart. Particle B moves straight away from A to make the distance between them
Calculate the absolute pressure at an ocean depth of 1000m. Assume that the density of sea water is 1024 kg/m^3 and that the air above exerts a pressure of 101.3 kPa.
A clock balance wheel has a period of oscillation of 0.300 s. The wheel is constructed so that its mass of 10.0 g is concentrated around a rim of radius 0.600 cm. What is the torsion constant of th
What is the maximum speed at which a 234-kg car can safely travel if the radius of the track is 80 m and the coefficient of friction is 0.46?
It collides and sticks to an identical stick, with an overlap length equal to x. Immediately before the collision, the pivot is removed. What should x be so that after the collision the double-stick
A person who weighs 625 N is riding a 98-N mountain bike. Suppose that the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 7.60 X 10^
Starting from rest, an electric drill rotates with constant angular acceleration. After the drill has rotated through a certain angle, the magnitude of the centripetal acceleration of a point on the
If two such drops of the same charge and radius combine to form a single spherical drop, what is the potential at the surface of the new drop?
A 3.6 vC change is moved from a position where its electric potential energy is 7.2 mJ to a position where its potential energy is 1.8 mJ. What is the change in potential from, the initial position
Determine the magnitude and direction of the net electrostatic force on the charge at x = +3.0 m. Specify the direction relative to the -x axis.
If all this energy is released during a 12.5 hour day, at 78.3 percent efficiency, what is the average power output?
Imagine dropping a soccer ball. The first bounce will be the highest, eand each bounce after that will be lower until the ball stops bouncing. Describe the energy changes that take place and explain
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.46 m. A third charge of +3q is located on the x axis at such a place that the net electrostatic f
The electronic meter of an electric bike indicates that you are riding at 9.1 rad/s. The wheel has a radius of 0.45 m. If you ride the bike for 35 min, how far would you have gone if the bicycle wo
A speedboat (220 kg), making a circular turn (r=32 m) around a bouy. During turn the engine causes a net tangential force of 550 N. The initial tangential speed of the boat was 5 m/s. (a) find the t
Two identical twins A and B are each 20 year old when B starts on a round trip to a star 10 light years away. If he travels at an average speed of 0.99c, What are the ages of the two twins when B re
A solid sphere of weight 36.0 n rolls up an incline at an angle of 30.0. At the bottom of the incline the center of the mass of the sphere has a translational speed of 4.90 m/s. a) what is the kinet
What is the excess charge on a conducting sphere of radius r = 0.37 m if the potential of the sphere is 1625 V and V = 0 at infinity?
An 9.0 m, 220 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. How
After being "rubbed", an object has acquired a charge of -1 nanoCoulomb. Choose the statement that is true (only 1): A. 6.25 x 10-9 protons have been rubbed off the object.
Take the potential of the negative plate to be zero. If the potential halfway between the plates is then +10.0 V, what is the electric field in the region between the plates? (Take directly towards
A particle of charge q is fixed at point P, and a second particle of mass m and the same charge q is initially held a distance r1 from P. The second particle is then released. Determine its speed wh
A gas, while expanding under isobaric conditions, does 480 J of work. The pressure of the gas is 160000 Pa, and its initial volume is .0015 m^3. What is the final volume of the gas?