If a radioactive material has 1 hour half life, how much of a 1000 g sample will be left after 6 hours

What is determined by motion and the spacing of particles?

Suppose a 50-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.250m2. It is stretched to have no area in 0.100 s.

Which of the following best describes a magnet? O A. An object with two opposite charges O B. An object with a south pole O c. An object with two opposite poles O D. An object with a north pole

Where are the nonmetals located on the periodic table? only in the first column in between the metalloids and the metals on the far right side in the bottom two rows

The acceleration of a particle as it moves along a straight line is given by a (2t 1) m/s2, where t is in seconds.

A person drives north 6 blocks, then turns west, and drives 6 blocks. The driver then turns south and drives 6 blocks. How could the driver have made the distance shorter while maintaining the same displacement?

A 3 kg bowling ball is thrown onto a mattress. If it takes 0.3 seconds to stop the ball using a force of 24 N, what was the initial velocity of the bowling ball when it first touched the mattress?

Slope 1/2 y-intercept - 5

The water level in identical bowls, A and B, is exactly the same. A contains only water; B contains floating ice as well as water. When we weigh the bowls, we find that Group of answer choices

A man pushes down on a lever with 45 N and the lever moves 1.5 meters. The other end of the lever lifts a 87.6 N box. 4 meters. What is the efficiency of the lever?