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A small Charged ball Hangs on a Thin insulating thread and executes small amplitude Harmonic oscillations with period T. If a large, grounded, metal plate is placed beneath this Pendulum would the p
The metabolic rate of a 50 kg. woman increases to 350 W while biking. a) If her body adjusts to lose heat at a rate of only 330 W, by how much will her core temperature increase in an hour.
A capacitor is constructed from two square metal plates. A dielectric fills the upper half of the capacitor and a dielectric fills the lower half of the capacitor. Calculate the capacitance.
When a different particle with an electric charge of +4.10 x 10-12 C enters the velocity selector traveling east, the net force (due to the electric and magnetic fields) acting on it is 1.65 x 10-9 N
a.) What is the potential difference between the final and initial positions? Did the potential increase or decrease? b.) By how much did the potential energy of the proton change? Did it increase or
A proton is at the origin (x = 0, y = 0) at time t = 0 when it is moving with a velocity of 5.0 x 10^4 m/s in the positive y-direction. Ignore and non-electric forces. At some particular later time
To enter the main pool at an amusement part, a swimmer uses a water slide which has a vertical height of 2.73 m. Find her speed at the bottom of the slide if she starts with an initial speed of 0.95
a) What is the current density for this wire if the current is 6.1 Amp, and the radius is 5×10-4 m? b) What is the drift velocity for the electrons in this wire?
A 1.2 kg block is held at rest against a spring with a force constant k = 665 N/m. Initially, the spring is compressed a distance d.
A 1,420 kg boulder at rest, begins to roll down a 52 m long hillside. while rolling, the ground causes a frictional force of 12,040N. the boulder arrives at the bottom of the hillside with a speed o
A point particle has a charge equal to +2.30 µC and is fixed at the origin. (a) What is the electric potential V at a point 3.40 m from the origin assuming that V = 0 at infinity?
What is the frequency and wavelength of the electromagnetic radiation at this photon energy? What is the speed of the wave?
A 0.060-H inductor is wired across the terminals of a generator that has a voltage of 2.5 V and supplies a current of 0.022 A. Find the frequency of the generator. Note: The ac current and voltage a
A force of 70.0 N is exerted at an angle of 30.0° below the horizontal on a block of mass 8.00 kg that is resting on a table. What is the magnitude of the normal force acting on the block?
How much work must be done to bring three electrons from a great distance apart to 4.0×10-10 m from one another (at the corners of an equilateral triangle)?
A +9.0 charge is located at 12 and a -3.0 charge is located 4.0. Where would a -10 charge need to be located in order that the electric field at the origin be zero? Enter your answers numerically se
A bead with a mass of 0.050 and a charge of 15 is free to slide on a vertical rod. At the base of the rod is a fixed 10 charge. In equilibrium, at what height above the fixed charge does the bead re
A concave mirror has a focal length of 31.2 cm. The distance between an object and its image is 43.2 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the cente
(a) What are the coordinates of the initial position of the stone? (Do not assume that the student is the point of origin.) (b) What are the components of the initial velocity of the stone?
An electromagnetic wave is traveling through free space. At a particular instant of time the electric field at a point is 2600 V/m. The speed of light is 2.998 × 108 m/s. Find the magnetic fie
The solar wind consists of particles, including protons, that flow outward from the Sun. Near the Earth, the density of protons in the solar wind is 8.72×10-6 protons/cm3, speeding through spa
A wire has a cross-sectional area of 5.5×10-6 m2. In a time of 3.7 s, 5.8 C of charge flows through it. What is the magnitude of the current density in the wire?
A (light) pallet has a load of cases of tomato paste each of which is a cube of length l and has identical mass. Find the center of gravity in the horizontal plane, so that the crane operator can pi
The team monitoring a space probe exploring the outer solar system finds that radio transmissions from the probe take 3.15 hours to reach earth. How distant (in meters) is the probe?
An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. If 7900 J were released in the explosion, how much kinetic energy did each piece acquire?