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A football is thrown toward a receiver with an initial speed of 16.2 m/s at an angle of 35.6 degree above the horizontal. At that instant, the receiver is 14.0 meter from the quarterback. The acceleration of gravity is 9.81 m/s2. Find with what constant speed should the receiver run to catch the football at the level at which it was thrown?
Answer in units of m/s.
A car travels east at 100 km/h for 0.8 h. It then travels 30.0° east of north at 127 km/h for 1.5 h. What is the average velocity for the trip
If I have a bar of length 2d that is supported on a peg at a distance 3/2d from the left end of the bar, What is magnitude of torque of force F
In coming to a stop, a car leaves skid marks 77m long on the highway. Assuming a deceleration of 8m/s2, estimate the speed of the car just before braking.
A solid ball has a weight of 3.0N. When it is submerged in water,it has an apparent weight of 2.7N. What is the density of the ball
An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.
The mean distance between the earth and the sun is 1.5x1011m. The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming that the sun emits radiation uniformly in all directions, determine the total ..
a projectile passes point a with a velocity v upward. at some time later the projectile passes point b with a velocity
As a city planner, you receive complaints from local residents about the safety of nearby roads and streets, Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed ..
The place you get your hair cut has two nearly parallel mirrors 7.0 m apart. As you sit in the chair, your head is 1.0 m from the nearer mirror. Looking toward this mirror, you first see your face and then, farther away, the back of your head.
The angular speed of a propeller on a boat increases with constant acceleration from 12 rad/s to25 rad/s in 2.4 sec. Find through what angle did the propeller turn during this time
A 6.7uC particle moves through a region of space where an electrice field of magnitude 1300 N/C point in the positive x direction, find the components of the particle's velocity
A 72.5-kg tourist climb the stairs to the washingtonmonument,which is 555 ft high. How far does the earth move in the opposite direction as the tourist climbs?
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