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A massless pulley is pulled upward with a force = 140 N. A rope passes over the pulley with a mass, M1 = 5 kg at one end and a second mass, M2 = 3 kg attached to the other end of the rope? What is the acceleration of the two masses?
A ray of light incident upon a mirror makes an angle of 42 with the mirror. What is an angle between the incident ray and the reflected ray.
For a particular scientific experiment, it is important to be completely isolated from any magnetic field, What is the current in the current loop
A 1.50g penny with density 7170kg/m3 is released just below the surface of a pool of water. What's its initial downward acceleration
The mass of the motor is four times the mass of the module. What is the speed (in km/h) of the command module relative to Earth just after separation?
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the speed of a satellite in a geosynchronous orbit
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 880 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
Consider two masses, mp and mt, on a surface where friction is negligible. Write the expression for conservation of momentum in the x- and y-directions
At time t = 0 and at position x = 0 m along a string, a rightward (+x dir) travelling sinusoidal wave with frequency of 220 Hz has displacement y = +4.0 mm, What is the smallest positive phase angle for this wave
A horizontal incident beam consisting of white light passes through an equilateral prism. What is the dispersion (thetaV -thetaR) of the outgoing beam
Some people like to place large reflective balls in their gardens. Let?s say that such a ball has a radius of curvature of 24.0 cm, Determine the image distance for the bird's image
Fortunately our environment radiates too. The human body absorbs this radiation with an absorbance of 97.0 percent, How much energy does our body lose in one second
Calculate the time it will take this block when released from rest to travel a distance of 0.3 m along the ramp
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