Is the following sentence true or false? The three main types of

mechanical waves are water waves, longitudinal waves, and surface

waves.

Under which condition below would you expect a coarse grained extrusive rock like dacite to form? A. lava slowly flowing out of a fracture in the Earth's surface B. 25km beneath Earth's surface C.

Particle physicists use particle track detectors to determine the lifetimeof short-lived particles. A muon has a mean lifetime of 2.2sand makes a track 9.5 cm long before decayinginto an electron and two neutrinos. What was the speed of the muon?

Which statement is part of bohr's atomic model?

What is the approximate average ocean depth along the continental shelves bordering north america?

Carlota does 2000 J of work on a machine. The machine does 500 J of work. What is the efficiency of the machine? A. 4% B. 25% C. 75% D. 400%

A train leaves the train station at noon and travels at a constant speed of vt = 50 mi/hr on a straight track. 2 hr later, a car leaves the same train station and travels in the same direction at vc = 70 mi/hr on a road next to the train track.

The radius of the sun is about 700,000,000 meters, the radius of the planet Venus is about 6,000,000 meters, and the radius of the supergiant star Betelheuse is about 500,000,000,000 meters. Which of these statements is true (t) or false (f) ? A.

A cat starded at a distance of 5.4 m from your front door and began walking directly away from it. 2 minutes later, the cat was 9.3 m from your door if d is distance of the cat from the door what is d

A. True b. False: If you lose engine power or control and cannot get completely off the road, turn on your emergency flashers.

Explain the difference between charging by induction and charging by contact.