Eric M.

What is the domain and range of f(x) = 2|x – 4|?

Can you explain to me how to do this problem on my math homework? A car travels 50 miles per hour for 3 hours from Columbus to Cleveland. Remarkably, the car is able to maintain the exact same... more

In an accident, a compact car, mass 575 kg, moving at 15 m/s hits the rear end of a car with mass 1575 kg, originally going 5.0 m/s. They lock together and slide forward. a. Using momentum, what... more

A projectile is shot straight up leaving the ground at 30 m/s. If air resistance is ignored:a. What will be the speed of the object when it reaches a height of 15 m? Solve using energy. b. Same... more

If you push a 75 N block along a floor a distance of 4.2 m at a steady speed, and the coefficient of kinetic friction is 0.40, how much work will you do on the block? Answer: 130J

A rock is thrown vertically downward and takes 1.56 s to reach the ground. If ittravels 23.5 m before reaching the ground, what is its velocity when it strikes theground? (Answer: 23 m/s)

A bug crawls 15cm west, turns 90° ccw, and crawls another 12cm. It's whole trip took 1 minute. Calculate distance, displacement, average speed, and average velocity.

show that if S(r,t) is defined by Ψ= exp (i S 2 bi/h) the probability current density can be expressed as j= ρ∇ (Re S)/ m