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A baseball outfielder throws a 0.150-kg baseball at a speed of 40.4 m/s and an initial angle of 28.0°. What is the kinetic energy of the baseball at the highest point of its trajectory?
In a control system, an accelerometer consists of a 4.99-g object sliding on a calibrated horizontal rail, Find the force constant of the spring required for the calibration to be correct
A baseball (m = 137 g) approaches a bat horizontally at the speed of 40.6m/s (91 mi/h) and is hit straight back at a speed of 45.1m/s (101 mi/h). If the ball is in contact with the bat for a time of 1.00 ms, what is the average force exerted on the..
A 90 kg astronaut and a 1600 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.24 m/s directly away from the shuttle.
When one marble hit the end of the line of marbles, how many shot off the other end? Describe the momentum of the set of marbles before and after the collision
An 845-N sled is pulled a distance of 186m. The task requires 1.2 multiplied by 104 J of work and is done by pulling on a rope with a force of 133-N. At what angle is the rope held.
Find the use of an NPN common emitter transistor, advantage of direct - coupled amplifier and bandwidth of an amplifier.
A 2000kg vehicle is travelling down the road at 20m/s (45 mph) when it reaches an intersection. Between rubber and dry asphalt, the coefficient of friction is 0.80. What is the minimum distance necessary for the car to stop.
In a physics laboratory experiment, a coil with 200 turns enclosing an area of 12.0 cm^2 is rotated from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to field.
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.82 of the person's regular weight, Find the direction of the acceleration
A hunter aims directly at a target (on the same level) 160 m away, If the bullet leaves the gun at a speed of 260 m/s, by how much will it miss the target
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