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A quarterback takes the ball from the line of scrimmage, runs backwards for 13.0 yards, then runs sideways parallel to the line of scrimmage for 9.0 yards. At this point, he throws a 48.0-yard forward pass straight downfield, perpendicular to the line of scrimmage.
What is the magnitude of the football's resultant displacement?
________yd
A 1.1 kg birdfeeder hangs from a horizontal tree branch. The birdfeeder is attached to the branch at a point that is 1.0 m from the trunk. where the branch attaches to the trunk
An archer's bow is drawn at its midpoint until the tension in the string is 1.07 times the force exerted by the archer. What is the angle between the two halves of the string
For the process where wk(closedsystem)=778 ft*lbf/lbm and ?u= 0.75 Btu/lbm, determine the heat transferred per pound mass
A vertical tube that is closed at the upper end and open at the lower end contains an air pocket. The open end of the tube is under the water of a lake. What is the volume of the air pocket under these conditions
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it, What is the power of one laser pulse
A door with width L = 1.0 m and mass M = 15 kg is hinged on one side so that it can rotate freely. What is the angular velocity of the door with respect to the hinge just after the bullets embeds itself in the door
A jackhammer causes a sound intensity of 95 bB at a point where a person is standing. What is the sound intensity level at the position of the listener
a 2.00 nC charge is placed on the x-axis at x= -3.00cm, another 2.00nC charge is placed on the x-axis at x=3.00cm, Calculate the electric potential at the origin
A car is moving at a constant velocity for 3s until it is 3.0 m from a yellow light. It slows to a stop in 2.0s. It remains stopped for 50s and then speeds up for 2s.
A mass M is suspended using two cables which make angles of theta_1 and theta_2 with the horizontal across the top. What is the tension (T_1) in the left-handed cable
A 1000 kg roller coaster starts from rest at height H= 25 m above the bottom of a 14 m diameter loop. What is the downward force of the track on the car
A 10 g bullet traveling at 450m/s strikes a 8.0kg , 1.0-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
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