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Calculate the electric field at one corner of a square 1.00 m on a side if the other three corners are occupied by 2.15 × 10-6 C charges??
A particle falling under gravity is subject to a retarding force proportinal to it's velocity. Find it's position as a function of time, if it starts from rest, and show that it will eventuall reach
A particle of mass m moves ( in the region X>0) under a force F = -kx+c/x, where k and c are positive constants. Find the corresponding potential energy function. Determine the position of equil
Consider a circuit consisting of a battery of voltage V and a parallel plate capacitor of capacitance of C0. If a dielectric slab with dielectric constant k is inserted, what is the energy delivere
What is its angular velocity when it reaches the vertical? When it first returns to its starting point, it is given an impulsive blow towards the vertical that increases the amplitude of swing to 10
When a mass is suspended from a spring, the equilibrium length is increaseb by 50 mm. The mass is then given a blow which starts it vertically at 200mms^-1. Find the period and amplitude of the resu
The space shuttle orbited the Earth in a circular orbit with a radius of 200 miles greater than the earth's radius. A) Compare the length of one space shuttle orbit around the earth in meters.
An accelerator increases the total energy of electrons uniformly to 10 GeV over a 3000 m path. That means that at 30 m. 300 m, and 3000 m, the kinetic energy is 108. 109. and 1010 eV, respectively.
Find the transformation matrix R that describes a rotation of 90 degrees about an axis from the origin through the point (1,1,0). The rotation is clockwise as you look down the axis toward the origi
H(z) is a discrete rational transfer function. To ensure that both H(z) and its inverse are stable its
Find the transformation matrix R that describes a rotation of 90 degrees about an axis from the origin through the point (1, 1, 0). The rotation is clockwise as you look down the axis toward the ori
A bottle of bleach is opened in a closed room where the air is perfectly still. Estimate how long it will take for the bleach molecules to diffuse through the extent o
A half-open pipe is constructed to produce a fundamental frequency of 250 Hz when the air temperature is 18 °C. It is used in an overheated building when the temperature is 38 °C. Neglecting
Two trains are traveling toward each other in still air at 26.0 m/s relative to the ground. One train is blowing a whistle at 314 Hz. The speed of sound is 343 m/s. (a) What frequency is heard by a
In a thundercloud, there may be electric charges of 140.0 C near the top of the cloud and 240.0 C near the bottom of the cloud. These charges are separated by 2.00 km. What is the electric force on
An electron is moving east in a uniform electric field of 1.55N/C directed to the west. At point A, the velocity of the electron is 4.50 × 105 m/s pointed toward the east. What is the speed of
A 4-m-long string, fixed at both ends, has a mass of 8 g. If you want to set up a standing wave in this string having a frequency of 280 Hz and three antinodes, what tension should you put the strin
The molecular weight of bleach (Sodium Hypochlorite NaClO) is 74.35 gms and the room temperature is 300K. Ignore convective currents.
What resistance would have to be connected in series with a 3 V lamp in a 28 V circuit when the operating current of the lamp is 0.5 A? What is the operating resistance of the lamp?
Why does a computer monitor flicker when i video tape it with a movie camera? Is it the same reason why when i wave my pen in front of a monitor fast it gives a wierd effect like there are bunch of
A car has a gas tank that holds 10.1 U.S. gal. One U.S. gal. equals 3.785 liters. What is the volume of the gas tank in cubic cubits?
An 8-Kg mass is observed traveling with a speed .08c. a) What is its classical momentum? What is its relativistic momentum? What is the difference between these two values?
A vector force with components (1,2,5) acts at the point (3,2,1) a) Find the vector torque about the origin due to this force
A string is 33.5 cm long and has a mass per unit length of 5.70 10-4 kg/m. What tension must be applied to the string so that it vibrates at the fundamental frequency of 708 Hz?
A string with a mass of 27 g and a length of 2 m is stretched under a tension of 68 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 48 Hz and an