A car is moving at 76 miles per hour. the kinetic energy of that car is 5 * 105 j. how much energy does the same car have when it moves at 111 miles per hour? answer in units of j.

A package is dropped from an airplane flying at an altitude of 69.2 m with a velocity of 1.40 x 10^2 km/h. Calculate the horizontal distance that the package lands from the lane.

The tropical year, the time from vernal equinox to the next vernal equinox, is the basis for our calendar. it contains 365.242199 days. find the number of seconds in two and a half tropical years.

A Newton is 1 kgm/s^2. Is this a fundamental unit or a derived unit?

Which two factors determine whether a collision between two reactant molecules will result in a reaction? select all that apply?

A vector of magnitude 10 has an angle with the positive x axis (east) of 120 degrees. what are its components

If two parallel light rays hit a plane mirror, what will be their orientation to one another after they reflect? a. they will remain parallel. b. they will be perpendicular. c. it depends on the initial spacing between the light rays. d.

To extend the electrical system between the main panel and the secondary panel, the electricians used A. Receptacles B. Circuit breakers. C. feeders. D. insulators

Men in the age of 18-34 years need to be able to run a marathon in 3 hours and 10 minutes to qualify for the Boston Marathon. How many seconds is this? Show your work.

What is the center of our solar system?

A - 4.0-µC charge is located 0.45 m to the left of a + 6.0-µC charge. What is the magnitude and direction (to the right or to the left) of the electrostatic force on the positive charge?