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Q1. A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration?
Q2. A 2000 kg car is slowed down uniformly from 15.0 m/s to 7.00 m/s in 5.60 s.
(a) what average total force acted on the car throughout that time?
(b) How far did the car travel all through that time?
What is the potential difference measured by voltmeter
What centripetal force does an 80-kg passenger experience when seated 12 m from the center of the Ferris wheel whose angular speed is 0.50 rad/s.
What is the magnitude of the force on an electron that is in the region between the plates at a point accurately 2.52 mm from the positive plate
Evaluate maximum altitude?
Problem on elevator
Find the resultant forces and moments at wrist, biceps muscle force, elbow and shoulder and joint reaction force using 2-D static analysis.
A small grinding wheel has a moment of inertia of 4.0×10-5 kg m^2. What net torque must be applied to the wheel for its angular acceleration to be 160 rad s^2.
Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment.
Angular acceleration and angular displacement of the rotor using the equation of motion in rotational dynamics.
A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?
A lens placed at the origin with its axis pointing all along the x axis produces a real inverted image at x=-24cm that is twice as tall as the object. What is an image distance.
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