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The Hubble Telescope orbits the earth in a near circular orbit of about 585 km above the Earth's surface. The period of the motion is 96.2 min.
(a) What is the speed of the satellite?
m/s
(b) What is the magnitude of the centripetal acceleration of the satellite?
m/s2
Draw two diagrams for the situation where a moving train (with initial speed v0) collides elastically with a target train that is not intially moving, Show that the final velocity of each train will be:
A sphere of radius R has a charge Q. The electric field strength at a distance r > R is Ei. What is the ratio Ef/Ei of the final to first electric field strength if Q is halved.
A ball with a mass of 0.75 kg is thrown vertically into the air with an initial velocity of 10 m/s. establish the velocity of the ball when it hits the ground if it was initially released 2.0 m above the ground.
A double-slit experiment using light of wavelength 580.nm produces an interference pattern on a screen. The slit separation is 1.39?10?2mm. find the distance between the slits and the screen
What is minimum important in returning blood to the heart? Negative intrathoracic pressure, valves and veins, the pumping action of skeletal muscles, or the pushing of blood by arterial system.
Ice at -14.9 °C and steam at 115 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 52.0 °C is present.
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 236 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
A 2.0 mm tall object is 20.0 cm to the left of a diverging lens that has a focal length of f= -30.0 cm. how tall is the image?
The magnitude of vector A is 24 m, and it points in the positive y direction. What are the magnitude and direction of vector
A 1.80 kg block slides on a frictionless horizontal surface. The block hits a spring with a speed of 2.00 m/s and compresses it a distance of 11.0 cm before coming to rest. Illustrate what is the force constant of the spring?
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field. Given the charge on the ball is 2.00 ?C , find the strength of the field. The angle that the string makes with the vertical is 8.00° N/C.
the wire unwinds without stretching or slipping, causing the pulley to rotate. Explain how far must the stone fall so that the pulley has 2.70 J of kinetic energy?
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