EBK PHYSICS FOR SCIENTISTS AND ENGINEER
1st Edition
ISBN: 9780100546714
Author: Katz
Publisher: YUZU
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Textbook Question
Chapter 1, Problem 12PQ
Use your weight in pounds to find your mass in kilograms. (On the Earth, 1 kg weighs roughly 2.2 lb.)
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Students have asked these similar questions
Two rocks of masses 5kg and 10kg are dropped off a cliff at the same time.
(a) Which rock will hit the ground first?
____ 5kg rock ___10kg rock ____ they will hit at the same time
Justify your answer.
(b) One of the rocks is now dropped from twice the original height (2H). How does the time it takes to hit the ground (T2) compare to the original time (T1)?
___ t2=2t1 ___ t2 <2t1 ___ t2 > 2t1
Justify your answer.
F=ma
F = force (N)
m = mass (kg)
a= acceleration (m/s2)
When dealing with the acceleration due to
gravity:
W=mg
W = weight (N)
g = acceleration due to gravity
(9.8 m/s2 for surface of Earth)
Warmup:
and
Force is measured in
acceleration is measured in
and mass is measured in
If we know the force exerted on an object (in Newtons) and we know the mass of the object (in
kilograms) we can easily find the acceleration the object experiences by dividing the
the
by
If we know the force exerted on an object (in Newtons) and we know how fast the object accelerates
(in m/s?) then we can easily find the mass of the object experiences by dividing the
the
by
if we know the mass of an object in kilograms, and we know the acceleration that an object
experiences then we can calculate the force exerted on that object by multiplying the
unit!
The mass of earth is 6 x 1024 kg and that of the moon is 7.4 x 10 kg. If the distance
between earth and moon is 3.84 x 105 km. Calculate the force exerted by the earth on
the moon. (G = 6.7 × 10-1" N m² kg*).
Chapter 1 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 1.5 - To practice using the prefixes in Table 1.1,...Ch. 1.5 - Prob. 1.2CECh. 1.6 - In Einsteins famous equation E = mc2, m stands for...Ch. 1.6 - Prob. 1.4CECh. 1.6 - Prob. 1.5CECh. 1.7 - How many significant figures does each number...Ch. 1.7 - Prob. 1.7CECh. 1 - The average life expectancy in Japan is 81 years....Ch. 1 - If you live in the United States, you probably...Ch. 1 - Prob. 3PQ
Ch. 1 - How many cubic centimeters (cm3) are in one cubic...Ch. 1 - Prob. 5PQCh. 1 - Prob. 6PQCh. 1 - A certain pure 0.9999 gold bullion bar with a mass...Ch. 1 - In Jules Vernes novel, Twenty Thousand Leagues...Ch. 1 - The distance to the Sun is 93 miIlion miles. What...Ch. 1 - A popular unit of measure in the ancient world was...Ch. 1 - CASE STUDY On planet Betatron, mass is measured in...Ch. 1 - Use your weight in pounds to find your mass in...Ch. 1 - A garden snail named Archie, owned by Carl...Ch. 1 - As part of a biology field trip, you have taken an...Ch. 1 - Prob. 15PQCh. 1 - Prob. 16PQCh. 1 - The kilogram Standard is a circular cylinder whose...Ch. 1 - Acceleration a has the dimensions of length per...Ch. 1 - Prob. 19PQCh. 1 - Prob. 20PQCh. 1 - Prob. 21PQCh. 1 - Prob. 22PQCh. 1 - A Later in this book, you will study oscillating...Ch. 1 - Prob. 24PQCh. 1 - Prob. 25PQCh. 1 - Convert 13.7 billion yeans (the age of the...Ch. 1 - How many significant figures does 0.00130 m have?Ch. 1 - A distance with two significant figures divided by...Ch. 1 - Prob. 29PQCh. 1 - Prob. 30PQCh. 1 - Perform the following arithmetic operations,...Ch. 1 - Calculate the result for each of the following...Ch. 1 - Prob. 33PQCh. 1 - In a laboratory, a researcher fails to start a...Ch. 1 - Prob. 35PQCh. 1 - Prob. 36PQCh. 1 - Prob. 37PQCh. 1 - Prob. 39PQCh. 1 - Prob. 41PQCh. 1 - Prob. 43PQCh. 1 - Prob. 44PQCh. 1 - In 2011, artist Hans-Peter Feldmann covered the...Ch. 1 - Prob. 49PQCh. 1 - Convert the following distances into SI units....Ch. 1 - Prob. 51PQCh. 1 - Later in this book, you will learn that sound is a...Ch. 1 - Two decorative spheres are carved from the same...Ch. 1 - Prob. 54PQCh. 1 - Prob. 55PQCh. 1 - Prob. 56PQCh. 1 - During a visit to New York City, Lil decides to...Ch. 1 - Prob. 58PQCh. 1 - You are part of a team in an engineering class...Ch. 1 - Prob. 60PQCh. 1 - A unit of distance used in astronomy is the parsec...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The price of gasoline at a particular station is 1.5 euros per liter. An American student can use 33 euros to buy gasoline. Knowing that 4 quarts make a gallon and that 1 liter is close to 1 quart, she quickly reasons that she can buy how many gallons of gasoline? (a) less than 1 gallon (b) about 5 gallons (c) about 8 gallons (d) more than 10 gallonsarrow_forwardOn Mars my sister’s dog weighs 62 N. What is its mass in kg? (Mars acceleration of gravity is 3.7 m/s2). Give your answer in kilograms with one decimal place.arrow_forwardThe acceleration of gravity on the surface of the moon is 1.62 m/s squared. If an astronaut weighs 746 N on earth, what is the weight of the astronaut when on the moon?arrow_forward
- On earth a kilogram mass weighs about 2.2 pounds. A 16-pound bowling ball has a mass of about how many kilograms? Express your answer to the nearest whole kilogram.arrow_forwardWhat is 91 miles per hour in units of meters per second? Give your answer rounded to 1 digit after the decimal place.arrow_forwardA man weighs 220 pounds. His son weighs 50,000 grams. What is their weight difference in kilograms?arrow_forward
- You may attempt this question 3 more times for credit. In this problem, we will directly calculate the surface gravity and your weight on another planet. In metric, your weight is measured in "Newtons", and 1 Newton = 1 kg m / s². Newton's constant G = 6.67 x 10-11 m³/(kg s²). Earth has a mass = 5.97 x 1024 kg and a radius of 6378 km. You should be able to verify that g = 9.8 m/s² on Earth using the formula for surface gravity. If your mass is 64 kg, you should also be able to verify you should weigh 626 Newtons. If you can do that you should be OK for what's next. The mass of Venus is 4.87E+24 kg, and it's radius is 6.05E+3 km. What is the surface gravity of this planet? (Watch your units!). m/s² If your mass is 64 kg, what would you weigh on Venus? Newtons. Note: Remember if your answer requires scientific notation to use the "e" notation: "1.1 x 105" is "1.1e5" to OWL.arrow_forwardTwo 700-kg masses (1543 lb) are separated by a distance of 76 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other. (Use G = 6.67 x 10-11 N-m²/kg2.) Newton's Law of Gravitation The gravitational force between two objects is proportional to the mass of each object and inversely proportional to the square of the distance between the centers of the masses: Gm F= where G is a constant. The direction of the force is attractive and lies along the line joining the centers of the two masses (fig. 5.19). F, 0:00/5:04 m₂ figure 5.19 The gravitational force is attractive and acts along the line joining the center of the two masses. It obeys Newton's third law of motion (F, =-F,). 480p The magnitude of the gravitational force exerted by one mass on the other is x 10-9 N.arrow_forwardWhat is the ratio of mass of Earth (5.972×10,-kg) to mass of moon (7.348×10,,kg) in scientific notation? I know the answer is 0.813x102 but I don't know how they got to that answer.arrow_forward
- At an altitude of 160 km above the earth's surface, a 3-kg mass is pushed vertically upward with a velocity of 16,000 km/h. Using the radius of the earth equal to 6357 km, calculate the maximum distance from the earth's surface reached by the mass. Present your answer in km using 4 significant figures.arrow_forwardThe mass of the Earth is 5.972 x 1024 kg. What would be the weight in Newtons of this much mass? How much weight would this be in pounds?arrow_forwardTwo 700-kg masses (1543 lb) are separated by a distance of 30O m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other. (Use G = 6.67 × 10-11 N-m²/kg².) (Round the final answer to four decimal places.) The magnitude of the gravitational force exerted by one mass on the other is 3.631 x 10-9 N.arrow_forward
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