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An astronaut practicing manoeuvring in space is startled to find she has drifted 65.67 m from her spaceship. Fortunately she knows that firing her thrusters’ pistol in the proper direction can get her safely back in no time. If she has a mass of 75.5 Kg and her thrusters pistol expels 35.3 g of hot gas at 555 m/s. How long will it take her to obtain back to the spaceship? Assuming she points it in the correct direction.
Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is the safe's acceleration up..
A 3.4cm diameter parallel-plate capacitor has a 2.5mm spacing. The electric field strength inside the capacitor is 1.5×10^5 V/m, how much is the charge on each plate
The figure below shows a wooden cylinder with mass m = 0.225 kg and length L = 0.600 m, with N = 50.0 turns of wire wrapped around it longitudinally, so that the plane of the wire coil contains the long central axis of the cylinder.
What is the rotational kinetic energy of the Earth? Use the moment of inertia you calculated in Part A rather than the actual moment of inertia given in Part B.
A Coast Guard cutter detects an unidentified ship at a distance of 22.0 km in the direction 15.0° east of north. Find the time required for the cutter to intercept the ship
Find out the speed of the satellite
For red light (lamda = 0.64um), ni in pure water is approx 1.3 x 10^-8; for blue light (lamda = 0.48um), ni is approx 1.0x10^-9. The deep end of a typical home swimming pool is approx 2.5m deep.
Derive a formula for the horizontal range R, of aprojectile when it lands at a height h above its initialpoint. (For h
A diverging/negative lens has a focal length of -12 cm. A 6.0 cm object is placed at several locations relative to the lens. The locations are (a) 55 cm, (b) 12 cm, and (c) 8 cm from the lens. Use the thin lens equation to calculate the image distanc..
A dockworker loading crates on a ship finds that a 18-kg crate, initially at rest on a horizontal surface, Find the coefficients of static and kinetic friction between crate and floor
A 0.800nm x-ray photon is incident upon a free electron, andthe electron recoils with a speed equal to 1.40x106m/s. Through what angle was the photon scattering
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. How much energy is deposited in the beef
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