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Q. A 16 kg steel ball is launched from a cannon at an angle of 20 degrees above the horizontal. The cannon exerted an average force of 1200 Newtons on the ball during launch. Now that the ball is in the air and has almost reached its target, what is the magnitude of the net force acting on the ball? (Neglect air resistance.)
Q. On a distant planet, golf is just as popular as it is on earth. A golfer tees off the drives the ball 3.5 times farther than he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 45 m/s at an angel of 29 above the horizontal. When the ball lands, it is at the same level as the tee. On the distant planet, what is (a) the maximum height and (b) the range of the ball?
An airplane flies due west at a velocity of 645 kilometres per hour (km/h). The wind blows from the north at a velocity of 125 kilometres per hour (km/h). Find the plane resultant velocity?
With the power supply disconnected, the dielectric material is removed and the potential difference between the plates is measured to be 500 V. What is the dielectric constant of the material that was at first used to fill the gap between the plates.
Paul is what most people consider a "jock." He is the captain of both the football and wrestling team and he also plays hockey. Upon entering Mrs. Title's class she figured that he would not take course seriously nor would he excel in class. She p..
An 18 g rifle bullet traveling 210 m/s buries itself in a 3.9kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. find the vertical and horizontal components of the pendulum's displacement.
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
For a rough calculation, we shall assume that the doctor is 50 from the baby (she is likely to be even closer at delivery), has a mass of 75.00, and can be modelled as a uniform sphere.
What is magnitude of the net force on the student
What is the velocity of the gold pack after the collision. what least average speed must it have in the second half of the event in order to qualify.
Compute an inductance of the sensor for air gaps
What was the displacement of the spring. An elevator and its load have a combined mass of 1400 kg. Find out the tension in the supporting cable when the elevator, originally moving downward at 12 m/s, is brought to rest with constant acceleration i..
Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 24.0 in a direction 60.0 west of north. Jane walks 12.0 in a direction 20.0 south of west. They then ..
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
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