Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Textbook Question
Chapter 6.1, Problem 19P
a. What force is required to stop a 1250-kg car traveling 95.0 km/h within 4.00 s?
b. How far does the car travel during its deceleration?
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Required information
In a standard tensile test, a steel rod of 1 3 -in. diameter is subjected to a tension force of P = 21 kips. It is given that v=
0.30 and E= 29 × 106 psi.
1-in. diameter
P
P
-8 in.
Determine the change in diameter of the rod. (Round the final answer to six decimal places.)
The change in diameter of the rod is -
in.
5.84 ... If the coefficient of static friction between a table and a uni-
form, massive rope is μs, what fraction of the rope can hang over the
edge of the table without the rope sliding?
5.97 Block A, with weight Figure P5.97
3w, slides down an inclined plane
S of slope angle 36.9° at a constant
speed while plank B, with weight
w, rests on top of A. The plank
is attached by a cord to the wall
(Fig. P5.97). (a) Draw a diagram
of all the forces acting on block
A. (b) If the coefficient of kinetic
friction is the same between A and
B and between S and A, determine
its value.
B
36.9°
5.60
An adventurous archaeologist crosses between two rock cliffs
by slowly going hand over hand along a rope stretched between the
cliffs. He stops to rest at the middle of the rope (Fig. P5.60). The rope
will break if the tension in it exceeds 2.50 X 104 N, and our hero's mass
is 90.0 kg. (a) If the angle is 10.0°, what is the tension in the rope?
(b) What is the smallest value can have if the rope is not to break?
Figure P5.60
Chapter 6 Solutions
Applied Physics (11th Edition)
Ch. 6.1 - Find the momentum of each object. 1. m = 2.00 kg, ...Ch. 6.1 - Find the momentum of each object. 2. m = 5.00 kg, ...Ch. 6.1 - Find the momentum of each object. 3. m = 17.0...Ch. 6.1 - Find the momentum of each object. 4. m = 38.0 kg, ...Ch. 6.1 - Find the momentum of each object. 5. m = 38 105...Ch. 6.1 - Find the momentum of each object. 6. m = 3.84 kg, ...Ch. 6.1 - Find the momentum of each object. 7. Fw = 1.50 ...Ch. 6.1 - Find the momentum of each object. 8. Fw = 3200 lb,...Ch. 6.1 - a. Find the momentum of a heavy automobile...Ch. 6.1 - a. Find the momentum of a bullet of mass 1.00 103...
Ch. 6.1 - a. Find the momentum of an automobile of mass 2630...Ch. 6.1 - A ball of mass 0.50 kg is thrown straight up at...Ch. 6.1 - A bullet with mass 60.0 g is fired with an initial...Ch. 6.1 - A cannon is mounted on a railroad car. The cannon...Ch. 6.1 - A 125-kg pile driver falls from a height of 10.0 m...Ch. 6.1 - A person is traveling 75.0 km/h in an automobile...Ch. 6.1 - A 75.0-g bullet is fired with a muzzle velocity of...Ch. 6.1 - A 40.0-grain bullet is fired at a muzzle velocity...Ch. 6.1 - a. What force is required to stop a 1250-kg car...Ch. 6.1 - (a) What force is required to slow a 1350-kg car...Ch. 6.1 - What force is required to stop a 3000-kg truck...Ch. 6.1 - What force is needed to stop a piece of heavy...Ch. 6.1 - A standard 5.0-oz baseball is thrown and reaches a...Ch. 6.2 - One ball of mass 0.500 kg traveling 6.00 m/s to...Ch. 6.2 - A ball of mass 625 g traveling 4.00 m/s to the...Ch. 6.2 - A 0.600-kg ball traveling 4.00 m/s to the right...Ch. 6.2 - A 90.0-g disk traveling 3.00 m/s to the right...Ch. 6.2 - A 98.0-kg parts cart with rubber bumpers rolling...Ch. 6.2 - A 75.0-kg paint cart with rubber bumpers is...Ch. 6.2 - A railroad car of mass 2.00 104 kg is traveling...Ch. 6.2 - Find the velocity of the railroad cars in Problem...Ch. 6.2 - One cart of mass 12.0 kg is moving 6.00 m/s to the...Ch. 6.2 - One cart of mass 15.0 kg is moving 5.00 m/s to the...Ch. 6.2 - A 1650-kg automobile moving south 12.0 m/s...Ch. 6.2 - A 16.0-g bullet is shot into a wooden block at...Ch. 6.2 - A 2450-kg automobile moving north 12.0 m/s...Ch. 6.3 - Two motorcycles of equal mass collide at a 90...Ch. 6.3 - Two pickup trucks crash at a 90 intersection. If...Ch. 6.3 - Two vehicles collide at a 90 intersection. If the...Ch. 6.3 - Two vehicles of equal mass collide at a 90...Ch. 6.3 - A vehicle with a mass of 1000kg is going east at a...Ch. 6.3 - Ball A with a mass of 0.500 kg is moving east at a...Ch. 6.3 - A vehicle with mass of 950kg is driving east with...Ch. 6.3 - A vehicle with a mass of 800kg is traveling west...Ch. 6 - Momentum is a equal to speed times weight b equal...Ch. 6 - Impulse is a. a force applied to an object b. the...Ch. 6 - Why do a slow-moving loaded truck and a speeding...Ch. 6 - How are impulse and change in momentum related?Ch. 6 - Why is follow-through important in hitting a...Ch. 6 - Describe in your own words the law of conservation...Ch. 6 - Describe conservation of momentum in terms of a...Ch. 6 - One billiard ball striking another is an example...Ch. 6 - One moving loaded railroad car striking and...Ch. 6 - A father and 8-year-old son are standing on ice...Ch. 6 - A truck with mass 1475 slugs travels 57.0 mi/h....Ch. 6 - A projectile with mass 27.0 kg is fired with a...Ch. 6 - A box is pushed with a force of 125 N for 2.00...Ch. 6 - What is the momentum of a bullet of mass 0.034 kg...Ch. 6 - A 4.00-g bullet is fired from a 4.50-kg gun with a...Ch. 6 - A 150-kg pile driver falls from a height of 7.5 m...Ch. 6 - A 15.0-g bullet is fired at a muzzle velocity of...Ch. 6 - What force is required to slow a 1250-kg car...Ch. 6 - One ball of mass 575 g traveling 3.50 m/s to the...Ch. 6 - A railroad car of mass 2.25 104 kg is traveling...Ch. 6 - A 195-g ball traveling 4.50 m/s to the right...Ch. 6 - Two trucks of equal mass collide at a 90...Ch. 6 - Ball A, of mass 0.35 kg, has a velocity 0.75 m/s...Ch. 6 - A coach knows it is vital that the volleyballs be...Ch. 6 - An automobile accident causes both the driver and...Ch. 6 - Several African tribes engage in a ritual much...Ch. 6 - Sally, who weighs 125 lb, knows that getting out...Ch. 6 - An automobile accident investigator needs to...
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- please answer the question thanks!arrow_forward5.48 ⚫ A flat (unbanked) curve on a highway has a radius of 170.0 m. A car rounds the curve at a speed of 25.0 m/s. (a) What is the minimum coefficient of static friction that will prevent sliding? (b) Suppose that the highway is icy and the coefficient of static friction between the tires and pavement is only one-third of what you found in part (a). What should be the maximum speed of the car so that it can round the curve safely?arrow_forward5.77 A block with mass m₁ is placed on an inclined plane with slope angle a and is connected to a hanging block with mass m₂ by a cord passing over a small, frictionless pulley (Fig. P5.74). The coef- ficient of static friction is μs, and the coefficient of kinetic friction is Mk. (a) Find the value of m₂ for which the block of mass m₁ moves up the plane at constant speed once it is set in motion. (b) Find the value of m2 for which the block of mass m₁ moves down the plane at constant speed once it is set in motion. (c) For what range of values of m₂ will the blocks remain at rest if they are released from rest?arrow_forward
- 5.78 .. DATA BIO The Flying Leap of a Flea. High-speed motion pictures (3500 frames/second) of a jumping 210 μg flea yielded the data to plot the flea's acceleration as a function of time, as shown in Fig. P5.78. (See "The Flying Leap of the Flea," by M. Rothschild et al., Scientific American, November 1973.) This flea was about 2 mm long and jumped at a nearly vertical takeoff angle. Using the graph, (a) find the initial net external force on the flea. How does it compare to the flea's weight? (b) Find the maximum net external force on this jump- ing flea. When does this maximum force occur? (c) Use the graph to find the flea's maximum speed. Figure P5.78 150 a/g 100 50 1.0 1.5 0.5 Time (ms)arrow_forward5.4 ⚫ BIO Injuries to the Spinal Column. In the treatment of spine injuries, it is often necessary to provide tension along the spi- nal column to stretch the backbone. One device for doing this is the Stryker frame (Fig. E5.4a, next page). A weight W is attached to the patient (sometimes around a neck collar, Fig. E5.4b), and fric- tion between the person's body and the bed prevents sliding. (a) If the coefficient of static friction between a 78.5 kg patient's body and the bed is 0.75, what is the maximum traction force along the spi- nal column that W can provide without causing the patient to slide? (b) Under the conditions of maximum traction, what is the tension in each cable attached to the neck collar? Figure E5.4 (a) (b) W 65° 65°arrow_forwardThe correct answers are a) 367 hours, b) 7.42*10^9 Bq, c) 1.10*10^10 Bq, and d) 7.42*10^9 Bq. Yes I am positve they are correct. Please dont make any math errors to force it to fit. Please dont act like other solutiosn where you vaugley state soemthing and then go thus, *correct answer*. I really want to learn how to properly solve this please.arrow_forward
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