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A particular airplane will reach liftoff at a speed of 120 km/h.
(a) What minimum constant acceleration does the airplane require for it to liftoff after a takeoff run of 280 m? (Enter the magnitude only.)
(b) How long does it take the airplane to reach liftoff speed?
An LRC circuit is connected to a 12.5-kHz, 785-V (rms) source, L = 27.0mH, R = 8.20k? , and C = 6550pF. Determine the total impedance
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 15 m/s at an angle of 32° above the horizontal. How long does it take for the ball to reach the wall if it is 4.2 m away
a train moving at a constant speed of 58.0 kmh moves east for 45.0 min then in a direction 56.0deg east of due north
A block of cheese has a mass of 20 kg is at rest on the floor. Thisblock is then pushed by a horizontal force of 8 N across the floor.The final speed is 2 m/s. Determine the distance the box was pushed.
A ship sets sail from Rotterdam, The Netherlands, heading due north at 6.00 m/s relative to the water. What is the velocity of the ship relative to the earth
A player can run 40.0 yards in 4.6 seconds starting from rest. What is his average speed in mi/hr
Pulling a string on a bow back with a force of 22.8 lb, an archer prepares to shoot an arrow. find what is the tension in the string
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one wipe every 15?s, 8?s, 4?s, 2?s, 1?s, Estimate the mininum value of the resistance
A coil lies flat on a level table top in a region where the magnetic field points straight up. The magnetic field abruptly grows stronger. When viewed from above, what is the direction of the induced current in this coil as the field increases?
The figure shows three identical chambers containing a piston and a spring with spring constant k. The chamber in a is completely evacuated, and the piston just touches its left end. In this position, the spring is relaxed. In b, the chamber contains..
problem 1 a box is lowered by a rope at a constant speed. if its mass is 20 lb its downward speed is 3 fts and the
The moon is observed using a telescope that has an objective lens with a focal length of 3.0 m and an eyepiece with a focal length of 7.5 cm. What is the angular diameter of the moon
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