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Q. A stone with a mass of 0.80 kg is attached to one end of a string 0.90 m long. The string will break if its tension exceeds 60.0 N. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. (a) Make a free-body diagram of the stone. (b) Find the maximum speed the stone can attain without breaking the string.
Q. A 1025 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 15 km/h. The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this decrease in weight?
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
A sealed tank containing seawater to a height of 11.1 also contains air above the water at a gauge pressure of 2.95. Water flows out from the bottom through a small hole.
Compute magnitude of the average emf
A car crashes into a wall at 25 m/s and its contents are brought to rest in 0.1s. display that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N.
Two children tug on a toy of mass 2.0 kg. Costa pulls with a force of 10.0N [W 30degrees S]. The toy slides with an acceleration of 2.5 m/s^2 in the direction of the net force.
50 g ball travelling at 25.0 m/s is bounced off a brick wall and rebounds at 22.0m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.51 ms, what is the average acceleration of the ball throughout this time inter..
Compute the position, velocity vector and the distance attained by athlete in a long jump event.
A charge of -2.2×10-9 C is at the origin and a charge of 6×10-9 C is on the x-axis at x = 3m. At what two locations on x-axis (xpositive, xnegative) is the potential zero.
What is Horizontal angle of projectile
Find the modulation index corresponding to the given trapezoidal pattern for the AM signal.
How do you establish the value of theta
A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve.
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