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A crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is suspended in air. The plane is inclined at an angle ? = 36.9°. Use conservation of energy to find how fast crate m2 is moving after m1 has traveled a distance of 1.4 m along the incline, starting from rest. The mass of m1 is 12.6 kg and the mass of m2 is 15.1 kg.
An asteroid in an elliptical orbit about the sun travels at 1.0*106 m/s at perihelion(the point of closest approach) at a distance of 3.9*108 km from the sun. Howfast is it traveling at aphelion (the most distant point), whichis 8.8*108 km from the s..
What is the radius of the circular track?
1 two equally charged spheres of mass 0.001kg are placed 0.02m apart. what is the eletrictric repulsive force that they
Assuming a planet of mass m moves around the Sun (with mass Ms) in a circular orbit of radius R, find its rotation period. explain how the period changes if the mass of the planet is doubled
An astronaut on a strange planet finds that she can jump a maxhorizontal distance of 16.0 m if her initial speed is 2.00m/s. What is the free- fall acceleration on the planet
A flash of light is emitted at position x1 on the x-axis and is absorbed at position x2=x1+d. In a reference frame moving with velocity v along the x-axis: What is the spatial separation d' between the point of emission and the point of absorption ..
A force F applied to an object of mass m1 produces the acceleration of 3.10 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.90 m/s2.
A solenoid 85.0 cm long has a radiusof 2.60 cm and a winding of1100 turns; it carries a current of3.60 A. Calculate the magnitude of the magnetic field inside the solenoid
The owner of a van installs a rear-window lens that has a focallength of -0.301m. When the owner looks out through the lens at a person standingdirectly behind the van, the person appears to be just 0.244 m from the back of the van, and appears to..
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
Estimate the average force exerted by a shot-putter on a 7.4 kg shot if the shot is moved through a distance of 2.5m and is released with a speed of 11m/s
An airplane is flying with a velocity of 99.0m/s at an angle of 26.0° above the horizontal. When the plane is a distance 121m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
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