You and your younger sister (who weighs half as much you do) are at a skating rink. You are both wearing roller skates and are facing each other. What will happen to your and your sister's motion if you push against each other? Question 1 options:

You move forward and your sister moves backward at a faster rate.

You both move forward, but you accelerate at a greater rate.

You move backward and your sister moves forward at a faster rate.

You both move backward but your sister accelerates at a greater rate.

Question 2 (1 point)
You are standing, completely still, on a completely flat floor. Why do you stay as you are instead of flying into the air?

Question 2 options:

There are no forces acting on you or the floor.

Forces are only acting on the floor.

All of the forces acting on you are balanced.

You are exerting an unbalanced force on the floor.

Question 3 (1 point)
A baseball is thrown at 90 mph from east to west over a distance of 60 ft. What is true of the ball's motion?

Question 3 options:

Its speed is 90 mph to the west.

Its acceleration is 30 mph.

Its velocity is 90 mph to the west.

Its acceleration is 150 mph.

Question 4 (1 point)
A box is pushed 7 m to the left in 3 s. What is the block's average speed to the nearest tenth?

Question 4 options:

2.33 m/s

0.43 m/s

2.3 m/s

0.4 m/s

Question 5 (1 point)
graph

On a graph of distance vs. time, what is true of the motion of the object during its first 6 m of travel?

Question 5 options:

The object was moving at a constant speed.

The object was accelerating.

The object was not moving.

The object was northbound.

Atension test was conducted on a specimen of aisi 1020 hot-rolled steel having an initialdiameter of 9.11 mm. representative test data are given in table1in the form of force and engineering strain. for strain the extensometer gage length was li= 50.8 mm. in addition, minimumdiameters were measuredmanually with a micrometer in the necked region at several points during the test. after fracture, thebroken halves were reassembled, and the following measurements were made: (1) marks originally 25.4 mm apart and on opposite sides of the necked regionwere 38.6 mm apart due to the lengthwise stretching in the specimen; (2) similar marks originally 50.8 mm apart were 70.9 mmapart; (3) the final minimum diameter in the necked region was 5.28 mma) determine the following material properties: elastic modulus, 0.2% offset yield strength, ultimate tensile strength, percent elongation, and percent reduction in area. b) assume that the test was interrupted upon reaching a strain u = 0.007, and the specimen unloaded to zero force. estimate the elastic strain recovered and the plastic strain remaining. also, what would the new length of the original 50.8 mm gage section. hint: might save time/effort to use excel, mathcad, matlab, etc. to solve part a)table1 data and analysis for a tension test on aisi 1020 hot-rolled steeltest dataforce (p, kn)1. 0.002. 6.673. 13.344. 19.135. 17.796. 17.217. 17.538. 17.449. 17.2110. 20.7711. 24.2512. 25.7113. 25.7514. 25.0415. 23.4916. 21.3517. 18.9018. 17.39engr. strain (ε)1. 02. 0.00053. 0.00104. 0.00155. 0.00236. 0.00317. 0.00508. 0.00709. 0.010010. 0.049011. 0.125012. 0.218013. 0.234014. 0.306015. 0.330016. 0.348017. 0.360018. 03660diameter (d, mm)1. 9.112. 9.113. 9.114. 9.115. 9.116. 9.117. 9.118. 9.119. 9.1110. 8.8911. 8.8912. 8.2613. 8.2614. 7.6215. 6.9916. 6.3517. 5.7218. 5.28