A tennis player swings her 1000 g racket with a speed of 14.0 m/s. She hits a 60 g tennis ball that was approaching her at a speed of 20.0 m/s. The ball rebounds at 38.0 m/s. You may want to review (Page 261). For help with math skills, you may want to review: Solving Algebraic Equations Part A How fast is her racket moving immediately after the impact? You can ignore the interaction of the racket with her hand for the brief duration of the collision. Express your answer with the appropriate units. ► View Available Hint(s) CHA Value Submit Part B CHA Units If the tennis ball and racket are in contact for 9.00 ms, what is the average force that the racket exerts on the ball? Express your answer with the appropriate units. ► View Available Hint(s) Value ? www. ? Units

Please only Part A and C; thank you! A ball of mass 0.472 kg moving east (+x direction) with a speed of 3.80 m/sm/s collides head-on with a 0.236 kg ball at rest. Assume that the collision is perfectly elastic. Part A What is be the speed of the 0.472-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. v1=_____________   Part C What is the speed of the 0.236-kg ball after the collision? Express your answer to three significant figures and include the appropriate units. v2=____________   Note: The direction of velocity of both v1 and v2 is to the east.

Please solve for the following

FI R %24 Part A A ball of mass m moving with velocity v strikes a vertical wall as shown in (Eigure 1). The angle between the ball's initial velocity vector and the wall is 6 as shown on the diagram, which depicts the situation as seen from above. The duration of the collision between the ball and the wall is At, and this collision is completely elastic. Friction is negligible, so the ball does not start spinning. In this idealized collision, the force exerted on the ball by the wall is parallel to the x axis. What is the final angle Or that the ball's velocity vector makes with the negative y axis? Express your answer in terms of quantities given in the problem introduction. > View Available Hint(s) Of = 0; Submit Previous Answers v Correct Part B What is the magnitude F of the average force exerted on the ball by the wall? Express your answer in terms of variables given in the problem introduction and/or v;x. • View Available Hint(s) x'auz Submit Previous Answers X Incorrect; Try…

Part A If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400 kg that is traveling horizontally at 10.4 m/s. Olaf's mass is 74.6 kg .(Figure 1) Express your answer numerically in meters per second. • View Available Hint(s) ΑΣφ ? m/s Vf = Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again; 4 attempts remaining B Part B If the ball hits Olaf and bounces off his chest horizontally at 8.10 m/s in the opposite direction, what is hi Express your answer numerically in meters per second. • View Available Hint(s) Vα ΑΣΦ ? m/s • Previous

n a carbon monoxide (CO) molecule, the distance between the oxygen atom and the carbon atom is 1.13 × 10-10 meters. The mass of an oxygen atom is 16 atomic mass units (amu) and the mass of a carbon atom is 12 amu. How far from the oxygen (O) atom is the center of mass of the molecule, in meters? Justify your answer using your equations and rationale used.

can you please solve both questions they are asking in a piece of paper please. theres also another question : here is What is the magnitude of the larger marble's velocity after the collision?

A smal, dosely wound col has N tuns, area A, and resistance R. The col is intaly in a unform magnetic feld that has magnitude B and a drection perpendicular to the plane of the loop. The collisthen rapidly pulled out of the field so that the flux through the collis reduced to zero in time At. Part A What are the magnitude of the average emf E, and average curent I, induced in the col? Express your answer in terms of the variables N, A, R, B. and At. AZ + * O O ? E, Iy= • Part B The total charge Qthat fows though the col is given by Q= IavAt. Derive an expression for Q in terms of N, A, B, and R Note that Q does not depend on At. Express your answer in terms of the variables N, A, R, and B. ? Q=

A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 280 kg, is spinning at 16 rpm. John runs tangent to the merry- go-round at 5.4 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg. Part A What is the merry-go-round's frequency, in rpm, after John jumps on? Express your answer in revolutions per minute to two significant figures. VE ΑΣΦ w = 23 Submit Previous Answers Request Answer ? * Incorrect, Try Again; 5 attempts remaining rpm

I need help with number 2 please and round all numbers to three significant digits please