It was a children versus grown-ups competition at school. one event required the adult to throw a basketball as far as he could. when it was the child's turn, he had to throw a baseball instead. the event coordinator said, "it's only fair! " based on newton's laws, was this event fair?

yes, because an adult can apply more force than a child can. making the adult's object bigger than the child's object to even out the acceleration.

no, because a basketball is bigger than a baseball, and objects that are bigger accelerate slower.

yes, because acceleration doesn't depend on the size of the object.

no, because you must have the same size object in a competition.

In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy