Ahigh-jumper, having just cleared the bar, lands on an air mattress and comes to rest. had she landed directly on the hard ground, her stopping time would have been much shorter. using the impulse-momentum theorem as your guide, determine which one of the following statements is correct. a. the air mattress exerts the same impulse, but a greater net average force, on the high-jumper than does the hard ground b. the air mattress exerts a greater impulse, and a greater net average force, on the high-jumper than does the hard ground c. the air mattress exerts a smaller impulse, and a smaller net average force, on the high-jumper than does the hard ground d. the air mattress exerts a greater impulse, but a smaller net average force, on the high-jumper than does the hard ground e. the air mattress exerts the same impulse, but a smaller net avg force, on the hj than hg

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer