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The velocity of an object in simple harmonic motion is given by v(t)= -(0.287 m/s)sin(18.0t + 2.00π), where t is in seconds. What is the first time after t=0.00 s at which the velocity is -0.160 m/s?
Three 15-? resistors are connected in parallel. This arrangement is connected in series with a 10-? resistor. What is the effective resistance of the parallel portion of the circuit
A steel ball of mass 0.400 kg is fastened to a cord that is 80.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 3.00 kg steel block initially at rest on a fric..
A dissecting microscope is designed to have a large distance between the object and the objective lens. What is the angular magnification
A rocket is used to place a synchronoussatellite in orbit about the earth. What is the speed of the satelliet in orbit
A child on a merry-go-round is moving with a speed of 1.40 m/s when 1.10 m from thecenter of the merry-go-round. Calculate the centripetal acceleration of the child
The space shuttle releases a satellite into a circular orbit 765 above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?
a 10-cm-long thin glass rod uniformly charged to 13.0 ncand a 10-cm-long thin plastic rod uniformly charged to
An auditorium measures 35.0 m multiplied by 25.0 m multiplied by 9.00 m. The density of air is 1.20 kg/m3. What is the weight of air in the room in pounds
To start a great night of doing physics homework, you sit down to pour yourself a good cup of coffee. What is the final temperature of coffee and mug once they come to thermal equilibrium
A 23 kg box slides 4.0 m down the frictionless ramp shown that is raised 30 degress from the ground , What is the maximum compression of the spring
Consider the equation for heat transfer through a wall. Based on this, describe two simple ways you could modify your home to decrease the rate at which heat is lost through your walls.
A hungry 650 -N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end, what is the maximum distance the bear can walk before the wire breaks
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