A spring is compressed by 0.0800m and is used to launch an object horizontally with a speed of 2.40 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
I'm having a diffucult time understanding free energy vs activation energy
are they the same?
I know free energy is the portion of a system's energy that is available for work
but what is this compared to the activiation energy?
For the following atoms in their ground state, determine the number of electrons in each energy shell. If there are no electrons in the particular energy shell, leave that answer box blank.
(Please see attached file
You want to be part of the Green Revolution and are looking to find ways to reduce your energy use. But first, you must know what your energy use is.
Make and save a chart in a Microsoft Word or Excel file to keep track of your energy use for 2 days this week. Include the following:
- What types of energy/fuel did you use (
A block of mass M slides along a horizontal table with speed Vo. At x=0 it hits a spring constant k and begins to experience a frictional force. The coefficient of friction is a variable and is given by u=bx, where b is a constant. Find the loss in mechanical energy when the block has come momentarily to rest.
In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole. With what minimum speed must the athlete leave the ground in order to lift his center of mass 2.00 m and cross the bar with a speed of 0.670 m/s?