Avan traveling down a slope with a uniform acceleration of 2.15 meters/second2 attains a speed of 20.00 meters/second after 7.00 seconds. what is the initial velocity of the van?
a. 0.00 meters/second
b. 3.65 meters/second
c. 4.95 meters/second
d. 35.05 meters/second
e. 120.75 meters/second

Air flows upward in the wick of a lantern because of the liquid property called

Could someone me find the answer to this problem.

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?