1 of 1 Part C Find the time required for the electron to move from A to B. Express your answer in seconds. ? 10 t = 10.47 • 10 A Submit Previous Answers Request Answer -10.0 cm X Incorrect; Try Again; 9 attempts remaining
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- Two automobiles, each of mass 1200 kg, are moving at the same speed, 19 m/s, when they collide and stick together.Answer part D and E pleaseC. Assimilation Direction: Do as instructed. 1. Consider the diagram at the right in answering the next three questions. Five locations along a roller coaster track are shown. Assume that there are negligible friction and air resistance forces acting upon the coaster car. Rank the five locations in order of increasing PE (smallest to largest PE). Use and or = signs. A A_ C E D C D В В A B VIL ASSES SAMENIT
- Part C A spherical object of radius r moving slowly through the air is known to experience a retarding force Fdrag = -6rv, where n is the viscosity of the air. Use this and your answer to Part B to find the radius r of a spherical droplet of density p falling with a terminal speed Uterm. Express your answer in terms of n, Uterm, p, and g. ► View Available Hint(s) T = Submit 9nºterm 2pg Previous AnswersA uniform ladder 5.10 m long rests against a frictionless, vertical wall with its lower end 3.10 m from the wall. The ladder weighs 157 N. The coefficient of static friction between the foot of the ladder and the ground is 0.410. A painter weighing 735 N climbs slowly up the ladder. ▼ Part A What is the maximum frictional force that the ground can exert on the ladder at its lower end? 15| ΑΣΦ Submit Part B Request Answer ? N What is the actual size of the frictional force when the painter has climbed 0.8865 m along the ladder? ▸ View Available Hint(s) IVE ΑΣΦ ? NPart E Find x-component of F = (20.0 N, 36.9° counterclockwise from the positive y-axis). Express your answer with the appropriate units. View Available Hint(s) Fx = Submit Part F Fy= μà Submit Value Find y-component of F = (20.0 N, 36.9° counterclockwise from the positive y-axis). Express your answer with the appropriate units. View Available Hint(s) µÅ Units Value ? Units ?
- 1. The block in the figure to the right remains motionless against the wall because of an applied force and the force of static friction between the block and the wall. The coefficient of static friction is μs. Which equation correctly describes the magnitude of the frictional force between the wall and the block?a. Ff=(mgcosθ)μsb. Ff= (Fasinθ–mg) μsc. Ff= (Facosθ – mg) μsd. Ff= Facosθμse. Ff= (Facosθ + mg) μsA 2004 Prius with a 150 lb driver and no passengers weighs 3071 lb. The car is initially at rest. Starting at t = 0, a net horizontal force F₂ (t) in the +x-direction is applied to the car. The force as a function of time is given in (Figure 1). The horisontal parts on the graph correspond to 7500 N and 3500 N Figure F, (N) 8000 6000 4000 2000 0 1.00 2.00 3.00 < 1 of 1 4.00 5.00 -t (s) Part A For the time interval t = 0 to t = 4.50 s, what is the impulse applied to the car? Express your answer to two significant figures and include the appropriate units. J = Submit Part B V = μÀ Value O Request Answer What is the speed of the car at t = 4.50 s? Express your answer to two significant figures and include the appropriate units. μA Units Value ? Units ?part D incorrect can you re try
- Only C,D, and EIn Haiti, public transportation is often by taptaps, small pickup trucks with seats along the sides of the pickup bed and railings to which passengers can hang on. Typically they carry two dozen or more passengers plus an assortment of chickens, goats, luggage, etc. Putting this much into the back of a pickup truck puts quite a large load on the truck springs. A truck has springs for each wheel, but for simplicity assume that the individual springs can be treated as one spring with a spring constant that includes the effect of all the springs. Also for simplicity, assume that all four springs compress equally when weight is added to the truck and that the equilibrium length of the springs is the length they have when they support the load of an empty truck. ▼ Part A A 63 kg driver gets into an empty taptap to start the day's work. The springs compress 2.1x10-² m. What is the effective spring constant of the spring system in the taptap? Enter the spring constant numerically in newtons…P2