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A broken spaceship is located 10 km above the center of a large circular thin sheet of unknown dust. The sheet has a radius of 106km and a density of 71011kg=m2. The spaceship and the dust attract each other due to the gravitational force. a) Discover the initial acceleration of the spaceship. b) Discover the acceleration of the spaceship right before the spaceship hits the dust. c) What will the astronauts in the spaceship experience right before the spaceship hits the dust?
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
Calculate the power required by an object to lift another object
The CG of a 150kg polar bear standing on all fours is 80 cm from her for paws and 100cm from her hind paws. Discover the force the ground exerts on each of her paws.
A physics book slides off a horizontal table top with a speedof 1.15 m/s. It strikes the floor in0.500 s. Find the height of the table top above the floor
A length of aluminum wire has a resistance of 14.0 ? at 22.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, Neglecting thermal expansion, find the temperature of the oven
A crate of mass 14.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. How much work is done by gravity
on a spacecraft two engines fire for a time of 541 s. one gives the craft an acceleration in the x direction of ax
If a violin string transmits waves at 375 m/s and has 295 Hz as its fundamental frequency, what is the string's length.
A mass of 145 g of hot coffee at 90.0 oC is poured into an insulated cup containing 240 g of ice initially at 0.0 oC. How many grams of liquid will there be then
A bucket holding a cartoon character is dangling from a rope above a well from the windlass which raises the bucket from the well. What is the rotational inertia of the windlass
A lens with a focal length of 25 cm and a concave mirror with a radius of curvature of 100 cm are placed 1.0 meters apart. determine if it is real or virtual
A proton (m = 1.7 × 10–27 kg, q = +1.6 ×10–19 C) starts from rest at point A and has a speed of 40km/s at point B. Only electric forces act on it through this motion. Decide the electric potential difference.
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