4. What is the spring constant of a marble launcher that shoots a 0.0051 kg marble a height of 2.3 m above its muzzle assuming it is angled at 62° above the horizontal? The marble
compressed the spring 0.080 m before being released.
I

Acylindrical specimen of a nickel alloy having an elastic modulus of 207 gpa (30 × 106psi) and an original diameter of 10.2 mm (0.40 in.) experiences only elastic deformation when a tensile load of 8900 n (2000 lbf) is applied. compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.25 mm (0.010 in.)

Why does the input force have to be greater than the force needed to lift the bale?

Explain the consequences of this addiction to the brain tissue