Connect with LearnSmart for Krauskopf: ...16th EditionKRAUSKOPF, Konrad B. Publisher: Mcgraw-hill Higher Education (us)ISBN: 9781259663895
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Solutions for Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
Problem 1MC:
Which of the following quantities is not a vector quantity? a. velocity b. acceleration c. mass d....Problem 2MC:
Which of the following statements is incorrect? a. All vector quantities have directions. b. All...Problem 3MC:
A box suspended by a rope is pulled to one side by a horizontal force. The tension in the rope a. is...Problem 4MC:
The sum of two vectors is a minimum when the angle between them is a. 0 b. 45 c. 90 d. 180Problem 5MC:
In which of the following examples is the motion of the car not accelerated? a. A car turns a corner...Problem 6MC:
Two objects have the same size and shape but one of them is twice as heavy as the other. They are...Problem 7MC:
The acceleration of a stone thrown upward is a. greater than that of a stone thrown downward b. the...Problem 8MC:
You are riding a bicycle at constant speed when you throw a ball vertically upward. It will land a....Problem 9MC:
When an object is accelerated, a. its direction never changes b. its speed always increases c. it...Problem 10MC:
If we know the magnitude and direction of the net force on an object of known mass, Newtons second...Problem 11MC:
The weight of an object a. is the quantity of matter it contains b. is the force with which it is...Problem 12MC:
Compared with her mass and weight on the earth, an astronaut on Venus, where the acceleration of...Problem 13MC:
The earth and the moon exert equal and opposite forces on each other. The force the earth exerts on...Problem 14MC:
A car that is towing a trailer is accelerating on a level road. The magnitude of the force the car...Problem 15MC:
When a boy pulls a cart, the force that causes him to move forward is a. the force the cart exerts...Problem 16MC:
In order to cause something to move in a circular path, it is necessary to provide a. a reaction...Problem 17MC:
An object is moving in a circle with a constant speed. Its acceleration is constant in a. magnitude...Problem 18MC:
A car rounds a curve on a level road. The centripetal force on the car is provided by a. inertia b....Problem 19MC:
The centripetal force that keeps the earth in its orbit around the sun is provided a. by inertia b....Problem 20MC:
The gravitational force with which the earth attracts the moon a. is less than the force with which...Problem 21MC:
The speed needed to put a satellite in orbit does not depend on a. the mass of the satellite b. the...Problem 22MC:
An astronaut inside an orbiting satellite feels weightless because a. he or she is wearing a space...Problem 23MC:
A bicycle travels 12 km in 40 min. Its average speed is a. 0.3 km/h b. 8 km/h c. 18 km/h d. 48 km/hProblem 24MC:
Which one or more of the following sets of displacements might be able to return a car to its...Problem 25MC:
An airplane whose airspeed is 200 km/h is flying in a wind of 80 km/h. The airplanes speed relative...Problem 26MC:
A ship travels 200 km to the south and then 400 km to the west. The ships displacement from its...Problem 27MC:
How long does a car whose acceleration is 2 m/s2 need to go from 10 m/s to 30 m/s? a. 10 s b. 20 s...Problem 28MC:
A ball is thrown upward at a speed of 12 m/s. It will reach the top of its path in about a. 0.6 s b....Problem 29MC:
A car that starts from rest has a constant acceleration of 4 m/s2. In the first 3 s the car travels...Problem 30MC:
A car traveling at 10 m/s begins to be accelerated at 12 m/s2. The distance the car covers in the...Problem 31MC:
A car with its brakes applied has an acceleration of 1.2 m/s2. If its initial speed is 10 m/s, the...Problem 32MC:
The distance the car in Multiple Choice 31 travels before it comes to a stop is a. 6.5 m b. 8.3 m c....Problem 33MC:
A bottle falls from a blimp whose altitude is 1200 m. If there was no air resistance, the bottle...Problem 34MC:
When a net force of 1 N acts on a 1-kg body, the body receives a. a speed of 1 m/s b. an...Problem 35MC:
When a net force of 1 N acts on a 1-N body, the body receives a. a speed of 1 m/s b. an acceleration...Problem 36MC:
A car whose mass is 1600 kg (including the driver) has a maximum acceleration of 1.20 m/s2. When a...Problem 37MC:
A 300-g ball is struck with a bat with a force of 150 N. If the bat was in contact with the ball for...Problem 38MC:
A bicycle and its rider together have a mass of 80 kg. If the bicycles speed is 6 m/s, the force...Problem 41MC:
An upward force of 600 N acts on a 50-kg dumbwaiter. The dumbwaiters acceleration is a. 0.82 m/s2 b....Problem 42MC:
The upward force the rope of a hoist must exert to raise a 400-kg load of bricks with an...Problem 43MC:
The radius of the circle in which an object is moving at constant speed is doubled. The required...Problem 44MC:
A car rounds a curve at 20 km/h. If it rounds the curve at 40 km/h, its tendency to overturn is a....Problem 45MC:
A 1200-kg car whose speed is 6 m/s rounds a turn whose radius is 30 m. The centripetal force on the...Problem 46MC:
If the earth were 3 times as far from the sun as it is now, the gravitational force exerted on it by...Problem 47MC:
A woman whose mass is 60 kg on the earths surface is in a spacecraft at an altitude of one earths...Problem 48MC:
A man whose weight is 800 N on the earths surface is also in the spacecraft of Multiple Choice 47....Problem 1E:
A woman standing before a cliff claps her hands, and 2.8 s later she hears the echo. How far away is...Problem 2E:
The starter of a race stands at one end of a line of runners. What is the difference in time between...Problem 3E:
In 1977 Steve Weldon ate 91 m of spaghetti in 29 s. At the same speed, how long would it take Mr....Problem 4E:
A snake is slithering toward you at 1.5 m/s. If you start walking when it is 5 m away, how fast must...Problem 5E:
A woman jogs for 2 km at 8 km/h and then walks for 2 km at 6 km/h. What is her average speed for the...Problem 6E:
Three forces, each of 10 lb, act on the same object. What is the maximum total force they can exert...Problem 7E:
Is it correct to say that scalar quantities are abstract, idealized quantities with no precise...Problem 8E:
A man is rowing at 8 km/h in a river 1.5 km wide in which the current is 5 km/h. (a) In what...Problem 9E:
A woman walks 70 m to an elevator and then rises upward 40 m. What is her displacement from her...Problem 10E:
Two tugboats are towing a ship. Each exerts a horizontal force of 5 tons and the angle between their...Problem 12E:
The acceleration of a certain moving object is constant in magnitude and direction. Must the path of...Problem 13E:
A car whose acceleration is constant reaches a speed of 80 km/h in 20 s starting from rest. How much...Problem 14E:
The brakes of a car are applied to give it an acceleration of 3 m/s2. The car comes to a stop in 5...Problem 15E:
A car starts from rest and reaches a speed of 40 m/s in 10 s. If its acceleration remains the same,...Problem 16E:
The brakes of a car moving at 14 m/s are applied, and the car comes to a stop in 4 s. (a) What was...Problem 17E:
A car is moving at 10 m/s when it begins to be accelerated at 2.5 m/s2. (a) How long does the car...Problem 18E:
The driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. The next...Problem 19E:
A car starts from rest and covers 400 m (very nearly 14 mi) in 20 s. Find the average acceleration...Problem 20E:
Is it true that something dropped from rest falls three times farther in the second second after...Problem 21E:
A rifle is aimed directly at a squirrel in a tree. Should the squirrel drop from the tree at the...Problem 22E:
The acceleration of gravity on the surface of Venus is 8.9 m/s2. Would a ball thrown upward on Venus...Problem 23E:
When a football is thrown, it follows a curved path through the air like the ones shown in Fig....Problem 24E:
A crate is dropped from an airplane flying horizontally at constant speed. How does the path of the...Problem 25E:
A stone is thrown horizontally from a cliff and another, identical stone is dropped from there at...Problem 26E:
(a) Imagine that Charlotte drops a ball from a window on the twentieth floor of a building while at...Problem 27E:
A person in a stationary elevator drops a coin and the coin reaches the floor of the elevator 0.6 s...Problem 29E:
A person dives off the edge of a cliff 33 m above the surface of the sea below. Assuming that air...Problem 30E:
A ball dropped from the roof of a building takes 4 s to reach the street. How high is the building?Problem 33E:
A ball is thrown upward from the edge of a cliff with an initial speed of 6 m/s. (a) How fast is it...Problem 34E:
The air resistance experienced by a falling object is not an important factor until a speed of about...Problem 35E:
A ball is thrown vertically upward with an initial speed of 30 m/s. (a) How long will it take the...Problem 36E:
A rifle is aimed directly at the bulls-eye of a target 50 m away. If the bullets speed is 350 m/s,...Problem 37E:
An airplane is in level flight at a speed of 100 m/s and an altitude of 1200 m when a windshield...Problem 38E:
A ball is thrown horizontally from the roof of a building 20 m high at 30 m/s. At what speed will...Problem 39E:
A bullet is fired horizontally from a rifle at 200 m/s from a cliff above a plain below. The bullet...Problem 40E:
An airplane whose speed is 60 m/s is flying at an altitude of 500 m over the ocean toward a...Problem 41E:
A person at the masthead of a sailboat moving at constant speed in a straight line drops a wrench....Problem 42E:
Compare the tension in the coupling between the first two cars of a train with the tension in the...Problem 43E:
In accelerating from a standing start to a speed of 300 km/h (186 mi/hnot its top speed!), the...Problem 44E:
A 12,000-kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200...Problem 45E:
The brakes of a 1200-kg car exert a force of 4 kN. How long will it take for them to slow the car to...Problem 46E:
A force of 20 N gives an object an acceleration of 5 m/s2. (a) What force would be needed to give...Problem 47E:
A bicycle and its rider together have a mass of 80 kg. If the bicycles speed is 6 m/s, how much...Problem 48E:
A 430-g soccer ball at rest on the ground is kicked with a force of 600 N and flies off at 15 m/s....Problem 49E:
A car and driver with a total mass of 1600 kg has a maximum acceleration of 1.2 m/s2. If the car...Problem 50E:
Before picking up the passengers, the driver of the car of Exercise 49 shifts into neutral when the...Problem 51E:
Consider the statement: Sara weighs 55 kg. What is wrong with the statement? Give two ways to...Problem 52E:
When a force equal to its weight is applied to an object free to move, what is its acceleration?Problem 53E:
A person weighs 85 N on the surface of the moon and 490 N on the surface of the earth. What is the...Problem 54E:
A mass of 8 kg and another of 12 kg are suspended by a string on either side of a frictionless...Problem 55E:
An 80-kg man slides down a rope at constant speed. (a) What is the minimum breaking strength the...Problem 57E:
A parachutist whose total mass is 100 kg is falling at 50 m/s when her parachute opens. Her speed...Problem 58E:
A person in an elevator suspends a 1-kg mass from a spring balance. What is the nature of the...Problem 59E:
A person stands on a scale in an elevator. When the elevator is at rest, the scale reads 700 N. When...Problem 60E:
A 60-kg person stands on a scale in an elevator. How many newtons does the scale read (a) when the...Problem 61E:
Since the opposite forces of the third law of motion are equal in magnitude, how can anything ever...Problem 62E:
What is the relationship, if any, between the first and second laws of motion? Between the second...Problem 63E:
A book rests on a table. (a) What is the reaction force to the force the book exerts on the table?...Problem 64E:
A car with its engine running and in forward gear goes up a hill and then down on the other side....Problem 65E:
An engineer designs a propeller-driven spacecraft. Because there is no air in space, the engineer...Problem 66E:
Two children wish to break a string. Are they more likely to succeed if each takes one end of the...Problem 67E:
When a 5-kg rifle is fired, the 9-g bullet is given an acceleration of 30 km/s while it is in the...Problem 68E:
Where should you stand on the earths surface to experience the most centripetal force? The least?Problem 69E:
Under what circumstances, if any, can something move in a circular path without a centripetal force...Problem 70E:
A person swings an iron ball in a vertical circle at the end of a string. At what point in the...Problem 71E:
A car makes a clockwise turn on a level road at too high a speed and overturns. Do its left or right...Problem 72E:
When you whirl a ball at the end of a string, the ball seems to be pulling outward away from your...Problem 73E:
A 40-kg crate is lying on the flat floor of a truck moving at 15 m/s. A force of 150 N is needed to...Problem 74E:
The greatest force a level road can exert on the tires of a certain 2000-kg car is 4 kN. What is the...Problem 75E:
Find the minimum radius at which an airplane flying at 300 m/s can make a U-turn if the centripetal...Problem 76E:
Some people believe that aliens from elsewhere in the universe visit the earth in spacecraft that...Problem 77E:
The 200-g head of a golf club moves at 40 m/s in a circular arc of 1.2 m radius. How much force must...Problem 78E:
An airplane flying at a constant speed of 160 m/s pulls out of a dive in a circular arc. The 80-kg...Problem 79E:
A track team on the moon could set new records for the high jump or pole vault (if they did not need...Problem 80E:
If the moon were half as far from the earth as it is today, how would the gravitational force it...Problem 81E:
Compare the weight and mass of an object at the earths surface with what they would be at an...Problem 82E:
A hole is bored to the center of the earth and a stone is dropped into it. How do the mass and...Problem 83E:
Is the suns gravitational pull on the earth the same at all seasons of the year? Explain.Problem 84E:
The centripetal force that keeps the moon in its orbit around the earth is provided by the...Problem 85E:
According to Keplers second law, the earth travels fastest when it is closest to the sun. Is this...Problem 86E:
A 2-kg mass is 1 m away from a 5-kg mass. What is the gravitational force (a) that the 5-kg mass...Problem 87E:
A dishonest grocer installs a 100-kg lead block under the pan of his scale. How much gravitational...Problem 88E:
A bull and a cow elephant, each of mass 2000 kg, attract each other gravitationally with a force of...Problem 89E:
An airplane makes a vertical circle in which it is upside down at the top of the loop. Will the...Sample Solutions for this Textbook
We offer sample solutions for Connect with LearnSmart for Krauskopf: The Physical Universe, 16e homework problems. See examples below:
Chapter 1, Problem 1MCChapter 2, Problem 1MCChapter 2, Problem 60EChapter 2, Problem 86EChapter 3, Problem 1MCChapter 3, Problem 56EChapter 3, Problem 57EChapter 3, Problem 58EChapter 4, Problem 1MC
Given Info: Two thermometers, one calibrated in °F and the other in °C, are used to measure the same...Write the expression for the expression for the heat liberated when temperature of a substance...Given info: The length, width and the thickness of the raft is 3 m, 2 m and 30 cm respectively and...Chapter 5, Problem 53EChapter 5, Problem 55EChapter 5, Problem 87EChapter 6, Problem 1MCChapter 6, Problem 4MCChapter 6, Problem 6MCChapter 6, Problem 16EChapter 6, Problem 17EAmplitude is the distance from the central line of crest of one wave to central line of crest of...Chapter 7, Problem 72EErnest Rutherford proposed the Rutherford’s model of atom. An atom has electrons, neutrons and...The gravitational force between two protons in a nucleus is too weak in comparison with the...Given Info: When a photon of sufficient energy incident on a metal surface, its energy is...Given Info: The mass of earth is 6×1024 kg , orbital speed is 3×104 m/s and value of h is...All matter in the universe is made up of atoms. Compounds can be broken down into simpler substance...The given equation is, Ca + [?]H2O → Ca(OH)2 + H2 To find the missing number in the above equation,...The given equation is, 4NH3 + 3O2 → 2N2 + [?]H2O To find the missing number in the above equation,...Solid is one of the physical state of matter. Solid consists of atoms, ions, or molecules that are...Combustion is burning of anything. This is a process which takes place in presence of oxygen. Oxygen...Mole of any elements is defined as “The amount of the element whose, mass in grams is equal to the...All matter in the universe is made up of atoms. Organic chemistry is a part of science that deals...Chapter 14, Problem 1MCChapter 15, Problem 1MCChapter 16, Problem 1MCChapter 17, Problem 1MCIt is possible to use both mirrors and telescope lens in order to observe the objects in the...Stars are present in galaxies. The spaces between galaxies are mostly empty space. These stars are...
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The Physical Universe
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PHYSICAL UNIVERSE
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Connect Access Card For The Physical Universe
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PHYSICAL UNIVERSE >CUSTOM<
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PHYSICAL UNIVERSE (LOOSELEAF)-W/CONNECT
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EP PHYSICAL UNIVERSE-CONNECTPLUS
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PHYSICAL UNIVERSE-CONNECTPLUS
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The Physical Universe
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Physical Universe
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PHYSICAL UNIVERSE-CONNECTPLUS
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EBK PHYSICAL UNIVERSE
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The Physical Universe
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The Physical Universe
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The Physical Universe: Instructor's Manual/test Bank
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Physical Universe-w/study Guide
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The Physical Universe
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The Physical Universe
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Study Guide For The Physical Universe
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PHYSICAL UNIVERSE(LL)-W/ACCESS >CUSTOM<
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Connect Access Card for The Physical Universe
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Physical Universe
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Physical Universe
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