Two astronauts are playing catch with a ball in space. the first astronaut throws the ball; and a) the ball moves, but the astronaut doesn’t. b) the ball moves, and so does the astronaut. c) the ball doesn’t move, but the astronaut does. d) the ball doesn’t move, and neither does the astronaut.
Answers: 1
Physics, 22.06.2019 10:30, Bayabbay8380
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 18:00, levilugar
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
Physics, 23.06.2019 03:30, akitchen10
What can change the speed of sound as it travels through the ocean? a. salinity only b. density and salinity c. salinity and distance from land d. density and distance from land
Answers: 2
Two astronauts are playing catch with a ball in space. the first astronaut throws the ball; and a)...
Mathematics, 29.06.2020 20:01
Mathematics, 29.06.2020 20:01