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An out of control alien spacecraft is diving into a star at a speed of 1.0 x 108 m/s. At what speed, relative to the spacecraft, is the starlight approaching?
Please explain each equation used and the basis behind the answer. Thank you very much
I want to put a 1500 g satellite into orbit around a spherical asteroid with a mass of 3x10^13 kg and a density of 5000 kg/m^3. Since it has no atmosphere, What is the radius of the asteroid
The electric motor of a heat pump transfers energy as heat from the outdoors, which is at -7.4°C, to a room, which is at 15°C. If the heat pump were a Carnot heat pump (a Carnot engine working in reverse), how much energy would be transferred as heat..
What is the efficiency of a cyclical heat engine in which 65.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine
Perhaps to confuse a predator, some tropical beetles arecolored by optical interference that is due to scales whosealignment forms a diffraction grating, What is the grating spacing of the beetle
An airplane with a speed of 97.5m/s is climbing upward at an angle of 50.0 degree. find the angle of the velocity vector of the package just before impact
a ball of radius 20.0 cm rolls from rest dawn a ramp, how many revolutions does the ball make while it is in the air
A laser beam shines straight up onto a flat, black foil with a mass of 23.0 ?g. What laser power is needed to levitate the foil
Two test charges are located in the x-y plane. If q1 = -2.30 nC and is located at x = 0.00 m, y = 1.040 m and the second test charge has magnitude of q2 = 4.00 nC and is located at x = 1.20 m, y = 0.750 m, calculate the x and y components
A block of mass 2.50 kg is pushed 2.60 m along a frictionless horizontal table by a constant 20.0 N force directed 25.0° below the horizontal. Determine the work done by the net force on the block
A model rocket rises with constant acceleration to the height of 3.7, at which point its speed is 25. what was the magnitude of the rocket's acceleration.
The velocity of a ball changes from m/s to m/s in 0.02 s, due to the gravitational attraction of the Earth and to air resistance. What is the rate of change of momentum of the ball
zyton corp. budgets production of 292 units in january and 264 units in february. each finished unit requires five
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