What is the motor effect?

Which of the following is the best evidence that Earth's continents were once in vastly different positions than they are today? A. Major rivers form deltas from continental erosion B. Fossils of tropical plants are found in Antarctica C.

The height of a helicopter above the ground is given by h = 2.65t3, where h is in meters and t is in seconds. at t = 1.55 s, the helicopter releases a small mailbag. how long after its release does the mailbag reach the ground?

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 86 kg, and the mass of the woman is 51 kg. The woman pushes on the man with a force of 46 N due east.

The magnetic strips on a credit card can become demagnetized. What type of magnet are they?

What have been the first step in forming the solar system

Less work was done. What is one possible reason why this has happened? A. There was more force applied; therefore, there was less movement. B. There was less force applied; therefore, there was more movement. C.

What are the optimal conditions for using a solar oven?

What is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 5.5 mm and an eyepiece whose focal length is 2.9 cmcm? Follow the sign conventions.

Who was the first person to observe a sign of molecular motion?

sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 1.90 m/s. The coefficient of kinetic friction between sled and ice is 0.110. Use energy considerations to find the distance the sled moves before it stops.