Asoccer player kicks a ball with a mass of 0.42 kg. the ball travels for 1.6s until the goalie
stops it as it is traveling at a velocity of 28 m/s.
a. what was the average acceleration of the soccer ball?

b. use the value you determined for acceleration to determine the amount of force the kicker
supplied to the soccer ball.

c. describe how the force that the kicker’s foot exerted on the ball compares to the force that
the ball exerted on the kicker’s foot.

d. the soccer ball has a mass of 0.42 kg. what additional information must you have to
determine the soccer ball’s weight?

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

Most short-period comets do not have randomly oriented orbits because