Rashford invents a propeller plane that spins from rubber band energy. He exerts force of 0.100 newtons evenly on one end of the propeller. With a distance of 10.0 cm from the center, as shown in the figure, causing the rubber band wraps around the axis of rotation for 20 cycles. Find the energy stored in the rubber band in joule
Q: Tarzan swings on a 34.0-m-long vine initially inclined at an angle of 30.0° with the vertical. (a)…
A: Given data: Length of vine, l=34.0 m Angle with the vertical, θ=30.00
Q: You push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a…
A: KEi=12x 100 x 22 =200 JWall=∆KEWg+WF+WN=∆KE
Q: What is the king energy at the bottom of the ramp? 50 J 30 J 20 J 80 J KE=30J PE=20J KE = ? PE=?…
A: Given: The kinetic energy at a given point is 30 J. The potential energy at a given point is 20 J.
Q: The figure below shows a 1.80 ✕ 104-N car rolling down a ramp inclined at an angle of θ = 35.0°…
A: Write the expression for work done by gravity
Q: Tarzan swings on a 38.0-m-long vine initially inclined at an angle of 33.0° with the vertical. (a)…
A: Hhh
Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…
A: To solve the problem we will use work-energy theorem. Given Data Mass of the cabinet is m=65.0 kg…
Q: A cyclist in a race must climb a 5° hill at a speed of 8 m/s. If the mass of the bike and the biker…
A: Given that-Mass of the bike and biker,m=80 kgSpeed of the bikerSlope, θ=5°
Q: A 9.50-g bullet has a speed of 1.30 km/s, (a) What is the kinetic energy in joules? (b) What is…
A: mass of bullet (m) = 9.50 gm or 9.5010-3 Kgspeed of bullet (v) = 1.30 km/s or 1.30103…
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A:
Q: A 66kg gymnast is at the top of a swing on the high bar. Her velocity is 2.3m/s and she is 3.8m…
A: The mechanical energy is 2632.41 J.Explanation:Given:The mass of gymnast (m) = 66kg Speed = 2.3…
Q: A 200-N child is in a swing that is attached to ropes 2.20 m long. Find the gravitational potential…
A:
Q: A 65kg bicyclist the top of a hill, of 15.5m/s at th height of the hil impeding the m wheels. List…
A: Given, Mass is m=65 kg. Speed is v=15.5 m/s. The height is h=19 m The initial energy is…
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Q: physics student with a mass m of 50.0 kg is doing push-ups, as shown in the figure below. In…
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Q: A 270-N child is in a swing that is attached to a pair of ropes 1.90 m long. Find the gravitational…
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Q: The figure below shows a ball with mass m = 0.330 kg attached to the end of a thin rod with length L…
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Q: Consider the figure below where the surface is frictionless: \v = 2 m/s Hman 10 m 3 m a. Calculate…
A: Given: The mass of the object is 200 kg. The speed of the object initially is 2 m/s. The initial…
Q: A running 40-kg cheetah has a top speed of 31 m/s. (a) What is the cheetah's maximum kinetic energy?…
A: Answer:- Given Mass(m) = 40 kg Speed (V) = 31 m/s (a) We know that Kinetic energy (K.E) = (1/2)…
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A: Write the work-energy equation. Here, m is the mass, vf is the final velocity, and vi is the…
Q: A 4 kg block is pulled up a 30 ^ 0 inclined surface whose length is 2 m and a coefficient of…
A: Change in kinetic energy is ∆K.E= -7.84 Joules
Q: A pail in a water well is hoisted by means of a frictionless winch, which consists of a spool and a…
A: Given, height lifted , h = 24.0 m time, t = 15.0 s mass of pail of water , m = 6.60 kg We know that…
Q: A cannon ball is launched at 45 m/sec, at 37 degrees, from a platform that is 30 meters above the…
A: Given:Initial speed of canon ball, u = 45 m/sHeight of the platform from the ground, H = 30…
Q: In climbing up a rope, a 62-kg athlete climbs a vertical distance of 5.0 m in 9.0 s. What minimum…
A: Given that,The mass of an athlete is, m=62 kgThe vertical distance, d=5mTime required to climb, t=9…
Q: A 360-N child is in a swing that is attached to a pair of ropes 2.10 m long. Find the gravitational…
A:
Q: There are two blocks connected by a rope which is wound over an ideal pulley. This is depicted in…
A:
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- A 20 kg child is on a swing that hangs from 3.0-m-long chains, as shown. What is her speed νi at the bottom of the arc if she swings out to a 45° angle before reversing direction?A 27.0-kg child on a 4.00-m-long swing is released from rest when the ropes of the swing make an angle of 35.0° with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. m/s (b) If the actual speed of the child at the lowest position is 3.30 m/s, what is the mechanical energy lost due to friction? Need Help? Read ItTwo blocks, A and B (with mass 50kg and 100kg respectively), are connected by an inextensible string as shown. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is p=0.25. Determine the change in the kinetic energy of block A as it moves from C to D, a distance of 20m up the incline if the system starts from rest. 50k 137° 10okg
- A system of two blocks are connected by a light string that passes over a frictionless pulley. The 20-kg bucket is 3-m above the ground. Using Conservation of Energy, determine the speed of the 20-kg bucket as it strikes the ground.A 6.0kg box is pulled across a frictionless surface for 60m. If the box experiences a change in kinetic energy of 24J, calculate the acceleration.Tarzan swings on a 35.0-m-long vine initially inclined at an angle of 34.0° with the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? m/s(b) What is his speed at the bottom of the swing if he pushes off with a speed of 6.00 m/s? m/s
- Please answer 12 only, asapA winch motor generates 500 W and uses it to pull a 250 kg crate across a horizontal floor. The crate starts from rest and the winch is applied for 5 seconds. The final speed of the crate isWhen a 78.0 kg skateboarded passes point P, his mechanical energy is 3.68 x 10^3 J relative to the ground.When he passes point Q he is moving at 8.15 m/s. How high is the skateboarder (relative to the ground) at point Q? Assume that the skateboard rolls with negligible friction.
- What is the Net Work ? Wnet = Fnetd cos θ Cart Mass, mc . 284 kg Angle, theta 49 degrees Distance, d . 75 m Suspended Mass, ms . 300 kg Velocity 1 1. 343 m/s Velocity 2 1 . 354 m/s Velocity 3 1 . 348 m/s Average Velocity 1 . 348 m/s Kinetic Energy . 258 JYou push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a mass of 100 kg and you are pushing with a 700 N force in the direction up along the ramp. The file cabinet has initial speed of 2.0 m/s. It’s moved 8.0 m up along the ramp. Match the answers with questions. the initial kinetic energy of the cabinet (Ki) the final kinetic energy of the cabinet (Kf) the change in kinetic energy of the cabinet (ΔK) A. -200 J B. -4208 J C. -4408 J D. 0 J E. 4008 J F. 4208 J G. -4008 J H. 4408 J I. 200 JA box has a mass of 15.4 kg is sliding along a floor with a velocity of 2.45 m/s East. A rope is attached to the box as shown producing a force of 76.3 N @ 34.3° above East. The work done by friction is found to be -776.J. What is the final speed of the box after it has been pulled a distance of 11.7 m? Select one: 14.2 m/s 0.00 m/s 0.877 m/s O d. 2.45 m/s a. b. C. m I 0 P d m 0 P