4.46 The two blocks in Fig. P4.46 are connected by a heavy uniform rope with a mass of 4.00 kg. An up- ward force of 200 N is applied as shown. (a) Draw three free-body diagrams: one for the 6.00 kg block, one for B the 4.00 kg rope, and another one for the 5.00 kg block. For each force, indicate what object exerts that force. (b) What is the acceleration of the system? (c) What is the tension at the top of the heavy rope? (d) What is the tension at the midpoint of the rope? Figure P4.46 F= 200 N 4.00 kg 6.00 kg 5.00 kg

4.35 ⚫ Two adults and a child want to push a wheeled cart in the direc- tion marked x in Fig. P4.35 (next page). The two adults push with hori- zontal forces F and F as shown. (a) Find the magnitude and direction of the smallest force that the child should exert. Ignore the effects of friction. (b) If the child exerts the minimum force found in part (a), the cart ac- celerates at 2.0 m/s² in the +x-direction. What is the weight of the cart? Figure P4.35 F₁ = 100 N 60° 30° F2 = 140 N

4.21 ⚫ BIO World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15 m/s². How much horizontal force must a 55 kg sprinter exert on the starting blocks to produce this acceleration? Which object exerts the force that propels the sprinter: the blocks or the sprinter herself?

No chatgpt pls will upvote

Please don't use Chatgpt will upvote and give handwritten solution

The kinetic energy of a pendulum is greatest Question 20Select one: a. at the top of its swing. b. when its potential energy is greatest. c. at the bottom of its swing. d. when its total energy is greatest.

Part a-D pl

The figure (Figure 1) shows representations of six thermodynamic states of the same ideal gas sample. Figure 1 of 1 Part A ■Review | Constants Rank the states on the basis of the pressure of the gas sample at each state. Rank pressure from highest to lowest. To rank items as equivalent, overlap them. ▸ View Available Hint(s) highest 0 ☐ ☐ ☐ ☐ ☐ ☐ Reset Help B F A D E The correct ranking cannot be determined. Submit Previous Answers × Incorrect; Try Again; 4 attempts remaining Provide Feedback lowest Next >

Part A m 2πkT ) 3/2 Calculate the integral (v) = f vƒ (v)dv. The function f(v) describing the actual distribution of molecular speeds is called the Maxwell-Boltzmann distribution, = ƒ(v) = 4π (· v²e-mv²/2kT . (Hint: Make the change of variable v² =x and use the tabulated integral foxne integer and a is a positive constant.) Express your answer in terms of the variables T, m, and appropriate constants. -ax dx n! - an+1 where n is a positive (v) = ΕΠΙ ΑΣΦ Submit Previous Answers Request Answer ? × Incorrect; Try Again; 4 attempts remaining Al Study Tools Looking for some guidance? Let's work through a few related practice questions before you go back to the real thing. This won't impact your score, so stop at anytime and ask for clarification whenever you need it. Ready to give it a try? Start