Paula spots a glider located at an angle of elevation of 42 degrees. the distance between the glider and paula is 3280 feet. to the nearest foot, what is the height of the glider h from the ground?

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?

The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c

Which form of pure carbon is so hard that it can be used in cutting tools?