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The International Space Station, launched in November 1998,makes 15.65 revolutions around the earth each day in a circularorbit. Apply Newton's second law to the space station and find its height (in kilometers) above the earth's surface.
X-rays of energy 30 keV are direcyed onto a cubic crystal. The first diffraction peakis measured to 35 degrees from the primary crystal plane, What is the atomic spacing of the crysta's primary Bragg planes
Water flows at 5.0;{rm L}/{rm s} through a horizontal pipe that narrows smoothly from 10 cm diameter to 5.0 cm diameter. A pressure gauge in the narrow section reads 50 kPa. What does the other pressure gauge read.
Water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a pressure of 0.250 atm. What is the pressure at the valve
A string fixed at both ends is vibrating in its 8th harmonic. How many nodes are on the string
one electron is at the origin of a coordinate system. a second electron somewhere in the x-y plane feels a force 2.4 x
A 1.6 mL syringe has an inner diameter of 5.8 mm, a needle inner diameter of 0.25 mm, and a plunger pad diameter (where you place your finger) of 1.0 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100.
The ratio of the mass of the earth to the mass of the moon is 81.0. Assume that the radius of the earth is about 6481.0 km and that the distance between the center of the earth and the moon is 385126.0 km.
A potter's wheel (a solid, uniform disk) of mass 5.7 kg and radius 0.65 m spins about its central axis. A 2.1 kg lump of clay is dropped onto the wheel at a distance 0.41 m from the axis. Calculate the rotational inertia of the system.
you and a friend are pulling on a box at 90 degree angles to each other. You are pulling with 80 pounds of force, Calculate the resultant force of pull and the angle of pull from the zero angle
Mark pushes his broken car 150m down the block to his friend's house. He has to exert a 110N force to push the car at a constant speed. How much Thermal Energy is created
An experiment is conducted to investigate the photo electric effect. When light of frequency 1.0 x 10 15 Hz isincident on a photocathode, electrons are emitted.
a jet moving at 500.0 km/h due east is n a region where the wind is at 120.0 km/h in a direction 30.00 degrees north of east
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