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A 20-m long steel wire (cross-section 1.0 cm^2, Young's modulus 2.0 ´ 10^11 N/m^2), is subjected to a load of 25 000 N. How much will the wire stretch under the load?
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
A 45 kg woman cheats on her diet and eats a 439 Calorie (439 kcal) jelly donut for breakfast. If the human body is only 28% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfas..
A large mirror is hung from a nail. The supporting steel wire has a diameter of 0.20 mm and an unstretched length of 1.60 m. The distance between the points of support at the top of the mirror's frame is 1.50 m. The mass of the mirror is 27.0 kg. Wha..
A small 12.3g plastic ball is tied to a very light 26.6cm string that is attached to the vertical wall of a room. A uniform horizontal electric field exists in this room. Find the magnitude of the electric field in the room
Which decay modes are possible?
A smWhat is the speed of the large cart after the collision?all, 100g cart is moving at 1.20m/s on an air track when it collides with a larger, What is the speed of the large cart after the collision
If the jet is moving at a speed of 1600 km/h at the lowest point of the loop, Calculate the pilot's effective weight at the top of the circle
A baseball pitcher pivots his extended arm about his shoulder joint, applying a constant torque of 197 N · m for 0.24 s to his arm, Find his arm's angular acceleration and final angular velocity
A bartender slides a drink along a bar to a customer seated 3 metres away in the positive x direction. At what initial speed should the bartender send the drink
Suppose you pour water into a container until it reaches a depth of 18. What is the pressure at the bottom of the container
A box is sliding up an incline that makes an angle of 13.4° with respect to the horizontal. How far does the box travel along the incline before coming to rest
A rocket is launched from the ground with an initial speed of 30 m/s at an angle of 40 degrees with respect to the horizontal. How far down range will the rocket have traveled
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