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A satellite travels at about 8000m/s. What is the factor γ for this speed? As observed from the ground, by how much would a clock traveling at this speed differ from a ground based clock after one hour (as measured by the latter)? What is the percent difference?
Light from the sun arrives at the earth at the rate of about 1400 W/m^2 of area perpendicular to the direction of the light. find the number of photons per second that fall on each square meter of the earth's surface directly facing the sun
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
question1a 30-kg girl is bouncing on a trampoline. throughout a certain interval after leaving surface of the
Tarzan, who weighs 639 N, swings from a cliff at the end of a convenient vine that is 18 m long, What would the greatest force on the vine be during the swing
A child goes down a playground slide with an acceleration of 1.30. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0 below the horizontal.
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. compute the index of refraction for violet light in plastic
Four equal charges, q=4.35C, of mass m 4.35kg are at the corner of a square of side L=0.0237m. If an equivalent charge of the same mass is placed at the origin, what is its speed at any time after it is released
A 950-kg satellite orbits the Earth at a constant altitude of 105-km. What is the change in the system's kinetic energy
A 60 (g} tennis ball with an initial speed of 32 {m/s} hits a wall and rebounds with the same speed. The figure shows the force of the wall on the ball throughout the collision.
A marble moving 1.48 m/s rolls off the top edge of a 125. cm high table. How far from the base of the table did it strike the floor
A cube of metal has a mass of 0.569 kg and measures 3.09 cm on a side. Calculate the density and identify the metal
A 500 g ball swings in a vertical circle at the end of a 1.4-m-long string. When the ball is at the bottom of the circle, What is the speed of the ball at that point
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