In the figure below, a block slides along a path that is without friction until the block reaches the section of lengthL = 0.80 m, which begins at height h = 2.0 m on a ramp of angle = 30°. In that section, the coefficient of kinetic frictionis 0.55. The block passes through point A with a speed of 8.0 m/s. If the block can reach point B (where the friction ends),what is its speed there, and if it cannot, what is its greatest height above A?m/sBAOᎾ

The question asks for the reactivity change and reactor period due to safety rod movement. Here's…

Answered: In the figure below, a block slides…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Please can you help me find part d
In the figure here, a small block is sent through point A with a speed of 6.9 m/s. Its path is without friction until it reaches the section of length L = 13 m, where the coefficient of kinetic friction is 0.76. The indicated heights are h1= 6.0 m and h2 = 2.4 m. What are the speeds of the block at (a) point B and (b) point C? (c) Does the block reach point D? (d) If so, what is its speed there; if not, how far through the section of friction does it travel? %3D D (a) Number Unit (b) Number Unit (c) (d) Number Unit B.
A 30.0-kg child starting from rest slides down a water slide with a vertical height of 10.0 m. What is the child’s speed (a) halfway down the slide’s vertical distance and (b) three-fourths of the way down? (Neglect friction.)
Examples 3: Consider a block that is free to slide down a smooth, frictionless plane that is inclined at an angle 0 to the horizontal, as shown in Figure. If the height of the plane is h and the block is released from rest at the top, what will be its speed when it reaches the bottom?
During a rockslide, a 620 kg rock slides from rest down a hillside that is 710 m along the slope and 240 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.28. (a) If the gravitational potential energy U of the rock-Earth system is zero at the bottom of the hill, what is the value of U just before the slide? (b) How much energy is transferred to thermal energy during the slide? (c) What is the kinetic energy of the rock as it reaches the bottom of the hill? (d) What is its speed then?
An object with a mass of 12.5 kg is moving along a rough horizontal surface. At a certain point it has 66 J of kinetic energy. If the coefficient of friction between the object and the surface is 0.44, how far will the object go beyond that point before coming to a stop? Express your answer in meters, to at least one digit after the decimal point. plz help and use g = 9.8
Maria sets up a simple track for her toy block (m = 0.30 kg) as shown in the figure below. She holds the block at the top of the track, 0.54 m above the bottom, and releases it from rest. (a) Neglecting friction, what is the speed of the block when it reaches the bottom of the curve (the beginning of the horizontal section of track)? m/s(b) If friction is present on the horizontal section of track and the block comes to a stop after traveling 0.80 m along the bottom, what is the magnitude of the friction force acting on the block? N
Draw a diagram of a 50 kg box sliding down a 6 meter high plane angled 30o to the horizontal. If the coefficient of friction force between the box and the plane is 0.4, what is the speed of the box at the end of the plane?
14. A block is sent sliding down a frictionless ramp. Its speeds at points A and B are 2.00 m/s and 2.60 m/s, respectively. Point A is higher up the ramp than point B. Next, it is again sent sliding down the ramp, but this time its speed at point A is 4.00 m/s. What then is its speed at point B? (a) 2.5 m/s (b) 4.3 m/s (c) 5.4 m/s (d) 6.1 m/s
A daredevil on a motorcycle leaves the end of a ramp with a speed of 39.2 m/s as in the figure below. If his speed is 36.8 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. __________ m
A bead of mass m = 5.30 kg is released from point A and slides on the frictionless track as shown in the figure below. The height of A is ha = 5.10 m. %3D ha 3.20 m 2.00 m (a) Determine the bead's speed at pbints B and C. point m/s В 8.4 point C Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four- digit accuracy to minimize roundoff error. m/s (b) Determine the net work done by the force of gravity in moving the bead from A to C. 141.12 Your response differs from the correct answer by more than 10%. Double check your calculations. J
A penguin slides down an icy incline on his stomach, as shown in the diagram below. The coefficient of kinetic friction between the incline and the penguin's stomach is 0.15. The angle of the incline is 0 = 25 degrees. The total distance down the incline is 25 meters. The penguin gets a running start so his speed is 2.5 m/s when he begins to slide down the incline. What is the penguin's speed when he reaches the bottom of the incline? Hint: use Newton's 2nd law to calculate the acceleration of the penguin on the incline, then use kinematic equations to calculate the speed of the penguin when he reaches the bottom. 2.5 m/s 25 m 25°

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