Determine the half-life of uranium-238 based on the graph.

What is the wavelength of a radio photon from an "am" radio station that broadcasts at 1160 kilohertz? what is its energy?

Three blocks are arranged in a stack on a frictionless horizontal surface. The bottom block has a mass of 37.0 kg. A block of mass 18.0 kg sits on top of it and a 16.0 kg block sits on top of the middle block.

Which of these best describes an electric circuit? a loop a line a network a switch

Gold is the king of metal why?

Suppose s (t) is the position of an object moving along a line at time t is greater than or equal to 0. What is the average velocity between the times t=a and t=b? What is the instantaneous velocity at t=a?

Which statement is most clearly objective? a. according to hernandez, i believe pilots must retire in their 60s. b. walters argues that no american in society is truly an island. c. the strongest aspect of cunningham's argument is the research. d.

Kinetic energy is defined as ½ mv2, where m is the mass of the object, and v is the velocity (or speed). Two gas molecules have the same kinetic energy, but molecule X has four times the mass of molecule Y. What can you say about their speeds?

What is the valure of work done on an objectwhen a 50newton force moves it 15 metrs in thesame dirction as the force

IF a rock has a mass of 92,224 kg, what is it's weight?

Whitch best defines the relationship between speed and velocity