Two objects of masses 1 kg and 3 kg are held stationary on a frictionless surface with a compressed massless spring between them. when the blocks are released, the 1 kg object moves to the left with velocity 9 m/s. what is the velocity with which the 3kg object moves to the right?

What is the value of x in the this question ?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2