A small block moves at point A with a speed of 7 m/s. Its path is without friction until it reaches the section of length L = 9 m where the coefficient of friction is 0.7. The indicated heights are h1 = 6m,h2 = 2 m. What is the speed of the block at point D? %3D %3D

▼ Part A A 56 g ice cube can slide without friction up and down a 30° slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 22 N/m. When the ice cube is released, what total distance will it travel up the slope before reversing direction? Express your answer with the appropriate units. As= Submit Part B Value As= Request Answer Submit The ice cube is replaced by a 56 g plastic cube whose coefficient of kinetic friction is 0.20. How far will the plastic cube travel up the slope? Express your answer with the appropriate units. Value Request Answer C < Return to Assignment Units Units ? Provide Feedback HH Q Search Review 140 6:11 PM 12/17/2023 M O

A 1300 kg wrecking ball hangs from a 10-m-long cable. The ball is pulled back until the cable makes an angle of 17.0 with the vertical. ▼ Part A By how much has the gravitational potential energy of the ball changed? Express your answer with the appropriate units. AU = 0 μA Value = Units ?

pervious question: Same type of track as in the previous problem, this time with d = 4.73 m. The block starts at x = 0, and is given a push to the left with an initial speed of 7.57 m/s, so it starts sliding up the track to the left. At what value of x will the block reverse direction and start sliding back down? New question:  OK, same sort of track, but now with d = 2.12 m. Now suppose the blocks starts on the track at x = 4.10 m. The block is given a push to the left and begins to slide up the track, eventually reaching its maximum height at x = 0, at which point it turns around and begins sliding down. What was its initial speed in this case?     18.98 m/s     12.47 m/s     8.82 m/s     14.90 m/s

A student releases a 3.9kg cart from the top of ramp and starts a stopwatch. The length from the front of the cart to the end of the ramp and the distance from the end of the ramp to the stopper are shown. Neglect backwards friction and drag and assume the cart does not lose speed transitioning from the ramp to the floor. What is the cart's acceleration on the ramp? unit | (magnitude) What is the cart's acceleration on the floor? 130cm unit (magnitude) How long does the cart take to reach the end of the ramp? 5° 200cm unit (timed from the release) How fast is the cart traveling as it hits the stopper? unit How long does the cart take to reach the stopper? unit (timed from the release) cannot be detern check answers challenge ne Calculator ound = 343m/s cant figures Rain to stop e here to search ACC t;320

Calculate the work done by friction as a 3.7 kg box is slid along a floor from point A to point B in the figure along paths 1, 2, and 3. Assume that the coefficient of kinetic friction between the box and the floor is 0.19. (Figure 1) Enter your answers numerically separated by commas. Express your answers using two significant figures.   W1,W2,W3= ______ J

Inthe figure, a 3.9 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 6.8 m/s, the height difference is h = 1.1m, and A. = 0.589. Find d. -0- He Number Units

B9