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Here is the problem which I am struggling on, please help me!
Problem: Space Station moves with constant speed circles the Earth once every 92.9 minutes. Given that the station is on average 420 km above the Earth find its speed (in m/s) and the magnitude of centripetal acceleration (in m/s2).
What is the solution of the above problem?
Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (B = 1q and C = 5q. Let the +x-axis be poin..
An atom originally in an energy level with E = -8.85 eV absorbs a photon that has wavelength 738 nm. What is the internal energy of the atom after it absorbs the photon/
A series circuit has a 50-Hz AC source, a 60-ohm resistor, a 0.50-H inductor, and a 10 uF capacitor. The RMS current in the circuit is 2.2 A. Find the power factor of the circuit
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, What current is induced in the square coil
An electric dipole consists of charges +2e and -2e separated by 1.0 nm. It is in an electric field of strength 4.7 x 106 N/C. Calculate the magnitude of the torque on the dipole when the dipole moment is (a) parallel to, (b) perpendicular to, and ..
A 8.51 -m ladder with a mass of 21.8 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 245 N. What is the net torque acting on the ladder
An elevator is rising at constand speed. The upward cable force is constant. The kinetic energy of the elevator is constant. The gravitational potential energy of the Earth-elevator system is constant.
The speed v of sound waves in air depends on the atmospheric pressure P and density r of the air. By using the method of dimensional analysis, find an expression for v in terms of P and r.
find the rms speed and the average kinetic energy of a hydrogen atom at a temperature of 5.9 multiplied by 107 k. at
A particular eye has a focal length of 2.0 cm instead of the 2.2 cm that would put a sharply focused image on the retina. Is this eye nearsighted or farsighted? What type of corrective lens is needed for the eye in the previous question?
Two small nonconducting spheres have a total charge of 90.7?C. When placed 1.06 m apart, the force each exerts on the other is 10.6 N, What is the smaller charge on the sphere
An eyepiece of 2.1- cm focal length and an objective of 0.34- cm focal length are used in a standard microscope. What power should be marked on the eyepiece
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