A100 kg object hangs from two steel cables, both with radius 1.2 mm. the first cable is 2.5 m long and 2 mm shorter than the second, but the object is horizontal (so they are now the same length). what is the force on the first cable? young's modulus for steel is 2.0 x 1011 n/m2.a : 470 nb : 500 nc : 850 nd : 1000 n

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the