IP A 2.6 kg block slides with a speed of 2.5 m/s on a frictionless horizontal surface until it encounters a spring. Part A If the block compresses the spring 5.6 cm before coming to rest, what is the force constant of the spring? Express your answer using two significant figures. V AE k = N/m Submit Request Answer Part B What initial speed should the block have to compress the spring by 1.4 cm? Express your answer using two significant figures. ? m/s

Compressed air is used to fire a 48 g ball vertically upward from a 1.0-m-tall tube. The air exerts an upward force of 1.0 N on the ball as long as it is in the tube. Part A How high does the ball go above the top of the tube? Express your answer to two significant figures and include the appropriate units. h = 3.24 Submit μα m Previous Answers Request Answer ? X Incorrect; Try Again; One attempt remaining

A freight company uses a compressed spring to shoot 1.90 kg packages up a 1.00-m-high frictionless ramp into a truck, as (Figure 1) shows. The spring constant is 312 N/m and the spring is compressed 35.0 cm Figure 1 of 1 Part A What is the speed of the package when it reaches the truck? Express your answer with the appropriate units. V= Submit ON F Value μÁ n Request Answer Units ?

A net force along the z-axis that has a-component F₂ = -12.0 N + (0.300 N/m²) x² is applied to a 4.50 kg object that is initially at the origin and moving in the -x- direction with a speed of 8.70 m/s. Part A What is the speed of the object when it reaches the point x = 7.60 m? Express your answer with the appropriate units. _O ī Submit μÀ Value Request Answer Units ?

A 2.85 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0340 m. The spring has force constant 860 N/m. The coefficient of kinetic friction between the floor and the block is 0.380. The block and spring are released from rest and the block slides along the floor. Part A What is the speed of the block when it has moved a distance of 0.0170 m from its initial position? (At this point the spring is compressed 0.0170 m.) Express your answer with the appropriate units. v= O ΕΞΑ Value Units ?

A force in the +z-direction with magnitude 18.0 N- (0.530 N/m)z is applied to a 6.60 kg box F(x) that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. O Part A If the box is initially at rest at r = 0, what is its speed after it has traveled 16.0 m ? Express your answer to three significant figures and include the appropriate units. ? HA Value Units Submit Previous Answers Request Answer

▼ 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

Newton's law of universal gravitation is represented by F= G* Mm/ T where F is the gravitational force, M and m are masses, and r is a length. Force has the Sl units kg • m/s?. What are the Sl units of the proportionality constant G? Show the work.

A 500-g block is released from rest and slides down a frictionless track that begins 2.28 m above the horizontal, as shown in the figure below. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 34.5 N/m. Find the maximum distance the spring is compressed. m 500 g h

A horizontal spring with spring constant 290 N/m is compressed by 10 cm and then used to launch a 200 g box across the floor. The coefficient of kinetic friction between the box and the floor is 0.23. Part A What is the box's launch speed? Express your answer with the appropriate units. Uf = Submit µÅ Value Request Answer Return to Assignment Units Provide Feedback ?