subject
Physics, 22.04.2020 23:32 anahitrejo1

An athlete throws a ball straight upward with an initial speed of 12 meters per second. The ball

reaches a maximum height and then falls back down toward the athlete. What are the

magnitudes of the velocity and acceleration of the ball at its maximum height?

O A. velocity = 0 m/s; acceleration = 0 m/s

B. velocity = 0 m/s, acceleration = 9.8 m/s

O C. velocity = 12 m/s; acceleration = 0 m/s

OD. velocity = 12 m/s; acceleration = 9.8 m/s

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 20:20
Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2
Answers: 2
question
Physics, 21.06.2019 21:10
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
Answers: 3
question
Physics, 22.06.2019 02:30
Gunpowder residue is most likely to show up where on a shooters hands
Answers: 1
question
Physics, 22.06.2019 09:00
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
You know the right answer?
An athlete throws a ball straight upward with an initial speed of 12 meters per second. The ball
Questions
question
Mathematics, 25.06.2021 09:00
question
Mathematics, 25.06.2021 09:00
question
Computers and Technology, 25.06.2021 09:00
question
English, 25.06.2021 09:00
question
History, 25.06.2021 09:00