If you stall your vehicle on railroad tracks and a train is approaching, get out of the vehicle and move

away from the tracks at a_degree angle away from the tracks toward the direction the train is coming

from.

45

90

180

77

If you make multiple measurements of your height, you are likely to find that the results vary by nearly half an inch in either direction due to measurement error and actual variations in height.

The acceleration of the gravity Moon is equal to one-sixth of Earth's gravitational acceleration times. if an astronaut has a mass of 60 kg, what is the mass ande weight of the astronauts on the moon?

Ultrasound is the name given to frequencies above the human range of hearing True or false

One way to measure g on another planet or moon by remote sensing is to measure how long it takes an object to fall a given distance. A lander vehicle on a distant planet records the fact that it takes 3.58 s for a ball to fall freely 12.

A closed circuit is formed by a solid conductor in contact with two parallel conducting rails that are closed on their left end, as shown.

If ta battery on a circuit is a 9-volt battery, each light on the circuit gets what

When a positive charge moves in the direction of the electric field, what happens to the electrical potential energy associated with the charge? A. It increases. B. It decreases. C. It remains the same. D. It sharply increases, and then decreases.

Electrons flow in the wire from a (n) terminal to a (n) terminal

A radioactive isotope of potassium (K) has a half-life of 20 minutes. If a 40.0 gram sample of this isotope is allowed to decay for 80 minutes, how many grams of the radioactive isotope will remain? A) 2.5 grams B) 5.0 grams C) 10.0 grams D) 40.

What are the SI units of measure for length, mass, and liquid volumes?