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You are an astronaut stranded in space. Your spacecraft lies about 20.0-m away. You have a flashlight that can generate 150-W of light.
(a) Using the flashlight's directed beam to change your momentum, how long would it take you to get back to your spacecraft? Calculate using 52000 grams mass m.
(b) What if, instead, you threw the flashlight away from you to change your momentum toward the spacecraft. If the flashlight had a mass of 2.00-kg and traveled at a speed of 10.0 m/s, how long would it take you to get back?
You measure the length of a futuristic car to be 3.50m when the car is at rest relative to you. what result do you get
A collection of three noninteracting particles shares three unites of energy. Each particle is restricted to having an integral number of units of energy, How many macrostates are there
A wave crest passes an observation point followed by a second crest. The time between crest is a period of 168.818 seconds. If the wave is traveling at a speed of 154.167 m/s, how long are the wavelengths?
A current of -3.70 A is located 5.51 cm along the x axis, that is, at the point (5.51,0.00) cm. A current of -6.15 A is located 4.08 cm along the y axis, Find the magnetic field at the origin
A convex mirror is needed to produce an image that is seven-eighths the size of an object and located 28 cm behind the mirror. What focal length should be specified
Two spherical asteroids have the same radius R. Asteroid 1 has mass M and asteroid 2 has mass 2M. What is the speed of each asteroid just before they collide
A stunt man drives a car at a speed of 20 m/s off a 27-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20?. How far from the base of the cliff does the car land
The leg and cast weigh 220 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 135 N. find the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
A 6V battery is connected in series with a 1.5V flashlight. what possible terminal voltages are available
A small block with a mass m1 = 4 kg is located at the edge of a disk with a mass of m2 = 20 kg and radius of R = 0.25 m, what is the rotational kinetic energy (in J) of the system
q1. for a damped oscillator with a mass of 280 g a spring constant 140 nm and a damping coefficient of 74 gs what is
Oxygen gas having a volume of 1.00 liter at 40.0 celsius and a pressure of 1.00 atmosphere expands until its volume its 1.50 liters, FInd the number of moles of oxygen
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