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A jet plane begins a dive with an initial speed of 135 m/s and accelerates along its path at 20 m/s^2. After 1000m it pulls up and follows a circular path with radius 400m at the same speed throughout the circular path. What is the acceleration of the plane at the bottom of the circular path. Give your answer in terms of m/s^2 and g's.
If the projectile rises to a maximum height of only 10.2 m, identify the magnitude of the average force due to air resistance.
A boat heads directly across a river. Its speed relative to the water is 3 m/s. How fast is the boat going relative to the bank of the river
A ball of m1 is held slightly above ball of mass m2. The two balls are droped simultaneously, falling distance h vertically from rest. Calculate the height to which the first ball rebounds
The distance from the earth to the center of our galaxy is about 23000ly(1yr is 9.47x10^15m), as measured by an earth based observer. how long will it take to make the trip
What is the resistance of a NichromeTM wire at 0.0 if its resistance is 108.9 at 12.5? The temperature coefficient of resistivity for NichromeTM is 4.00×10?4
As structural steel rod has a radius R = 9.5 mm and a length L = 81 cm. A force F = 6.2 × 104 N (about 7 tons) stretches it along its length. What is the tensile stress in the rod
A student wants to lose some weight. He knows that rigorous aerobic activity uses about 700 kcal/h (2900 kJ/h) and that it takes about 2000 kcal per day (8400 kJ) just to support necessary biological functions, at what rate will this student "burn"..
the light bulb used in a projector has a resistance of 28 ohms when operating on 104 volts. What is the bulbs power consumption
A bronze cannon ball with a mass of 3.5 kg is fired vertically from a small cannon and reaches a height of 25.0 m. find the maximum height reached by the cannon ball
Cheetahs, fastest of the great cats, can reach 45 in 2 starting from rest. Assume that they have constant acceleration throughout that time, find their acceleration (in (a) and (b) ) and the distance (in (c) and (d) ) Q2. They travel during that t..
A very long solenoid with a circular cross section and radius r= 8.1cm with n= 1.90E+4 turns/m has a magnetic energy density uB= 5.70 mJ/m3. What is the current in solenoid.
A particle moves in simple harmonic motion with a frequency of 2.60 Hz and an amplitude of 6.00 cm. Through what total distance does the particle move during one cycle of its motion
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