Physical Science (12th Edition), Standalone Book
12th Edition
ISBN: 9781260150544
Author: Bill W. Tillery
Publisher: McGraw Hill Education
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Chapter 2, Problem 7PEA
To determine
The distance traveled during the first 20.0 min by a radio signal.
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The distnace from earth to the moon is 239,000 miles.
a. how many kilometers are in 239000 miles?
b. given that the light travels at 3.00*10^8 m/s , how many minutes does it take for light to travel to the moon ?
c. The apollo 10 mission holds the record for the highest speed by a manned vehicle at 11080 m/s . How many minutes would it take for the apollo 10 mission to reach the moon assuming the rocket travels ina straight line at that top speed?
d. The apollo 11 mission took 73.45 hours to reach lunar orbit once it left earths orbit. The avergae speed duirng that time was 5500km/hr. How many miles did the apollo 11 mission actually travel in space ?
Suppose a radio signal travels from Earth and through space at a speed of 3.0 × 10° m/s. How far into
space did the signal travel during the first 23.7 minutes?
d =
x 10
km
The speed of light is c = 3.0 x 10^8 m/s. If the distance between the Earth and the moon is d = 2.39 x 10^5 mi (1.0 mi = 1.61 km). You send a laser from the Earth to the moon and back. How long does this take?
Chapter 2 Solutions
Physical Science (12th Edition), Standalone Book
Ch. 2 - 1. A straight-line distance covered during a...Ch. 2 - 2. How fast an object is moving in a particular...Ch. 2 -
3. Acceleration occurs when an object undergoes...Ch. 2 - Prob. 4ACCh. 2 -
5. A car moving at 60 km/h comes to a stop in 10...Ch. 2 -
6. According to Galileo, an object moving without...Ch. 2 -
7. In free fall, an object is seen to have a (an)...Ch. 2 -
8. A tennis ball is hit, causing it to move...Ch. 2 -
9. A quantity of 5 m/s2 is a measure of...Ch. 2 - 10. An automobile has how many different devices...
Ch. 2 - 11. Ignoring air resistance, an object falling...Ch. 2 - 12. Ignoring air resistance, an object falling...Ch. 2 - 13. Two objects are released from the same height...Ch. 2 - 14. A ball rolling across the floor slows to a...Ch. 2 - 15. The basic difference between instantaneous and...Ch. 2 - 16. Does any change in the motion of an object...Ch. 2 - 17. A measure of how fast your speed is changing...Ch. 2 - 18. Considering the forces on the system of you...Ch. 2 - 19. Newton’s first law of motion describes
a. the...Ch. 2 - 20. You are standing freely on a motionless...Ch. 2 - 21. Mass is measured in kilograms, which is a...Ch. 2 - 22. Which metric unit is used to express a measure...Ch. 2 - 23. Newton’s third law of motion states that...Ch. 2 - 24. If you double the unbalanced force on an...Ch. 2 - 25. If you double the mass of a cart while it is...Ch. 2 - 26. Doubling the distance between the center of an...Ch. 2 - 27. If a ball swinging in a circle on a string is...Ch. 2 - 28. A ball is swinging in a circle on a string...Ch. 2 - 29. Suppose the mass of a moving scooter is...Ch. 2 - 30. Two identical moons are moving in identical...Ch. 2 - 31. Which undergoes a greater change of momentum,...Ch. 2 - Prob. 32ACCh. 2 - 33. An astronaut living on a space station that is...Ch. 2 - Prob. 34ACCh. 2 -
35. You are at rest with a grocery cart at the...Ch. 2 -
36. Once again you are at rest with a grocery...Ch. 2 -
37. You are moving a grocery cart at a constant...Ch. 2 -
38. You are outside a store, moving a loaded...Ch. 2 -
39. Neglecting air resistance, a ball in free...Ch. 2 -
40. From a bridge, a ball is thrown straight up...Ch. 2 -
41. After being released, a ball thrown straight...Ch. 2 -
42. A gun is aimed horizontally at the center of...Ch. 2 -
43. According to the third law of motion, which...Ch. 2 -
44. A small sports car and a large SUV collide...Ch. 2 -
45. Again consider the small sports car and large...Ch. 2 -
46. An orbiting satellite is moved from 10,000 to...Ch. 2 -
47. Newton’s law of gravitation considers the...Ch. 2 - 1. An insect inside a bus flies from the back...Ch. 2 - 2. Disregarding air friction, describe all the...Ch. 2 -
3. Can gravity act in a vacuum? Explain.
Ch. 2 -
4. Is it possible for a small car to have the...Ch. 2 -
5. Without friction, what net force is needed to...Ch. 2 -
6. How can there ever be an unbalanced force on...Ch. 2 -
7. Why should you bend your knees as you hit the...Ch. 2 -
8. Is it possible for your weight to change while...Ch. 2 - Prob. 9QFTCh. 2 - 10. Suppose you are standing on the ice of a...Ch. 2 - 11. A rocket blasts off from a platform on a space...Ch. 2 - 12. An astronaut leaves a spaceship that is moving...Ch. 2 - 1. What are the significant similarities and...Ch. 2 - 2. What are the significant similarities and...Ch. 2 -
3. Compare your beliefs and your own reasoning...Ch. 2 -
5. Why is it that your weight can change by...Ch. 2 -
6. Assess the reasoning that Newton's first law...Ch. 2 - Prob. 6FFACh. 2 - Prob. 1IICh. 2 - Prob. 1PEACh. 2 - Prob. 2PEACh. 2 - Prob. 3PEACh. 2 - Prob. 4PEACh. 2 - Prob. 5PEACh. 2 - Prob. 6PEACh. 2 - Prob. 7PEACh. 2 - Prob. 8PEACh. 2 - Prob. 9PEACh. 2 - Prob. 10PEACh. 2 - Prob. 11PEACh. 2 - Prob. 12PEACh. 2 - Prob. 13PEACh. 2 - Prob. 14PEACh. 2 - Prob. 15PEACh. 2 - Prob. 16PEACh. 2 - Prob. 17PEACh. 2 - Prob. 18PEACh. 2 - What is the resulting acceleration when an...Ch. 2 - What is the momentum of a 100 kg football player...Ch. 2 - A car weighing 13,720 N is speeding down a highway...Ch. 2 - A 15 g bullet is fired with a velocity of 200 m/s...Ch. 2 - Prob. 23PEACh. 2 - (a) What is the weight of a 1.25 kg book? (b) What...Ch. 2 - Prob. 25PEACh. 2 - Prob. 26PEACh. 2 - Prob. 27PEACh. 2 - Prob. 28PEACh. 2 - Prob. 29PEACh. 2 - Prob. 30PEACh. 2 - Prob. 31PEACh. 2 - 1. What was the average speed in km/h of a car...Ch. 2 - 2. What was the average speed in km/h of a boat...Ch. 2 -
3. How much would an 80.0 kg person weigh (a) on...Ch. 2 -
4. What force is needed to give a 6,000 kg truck...Ch. 2 -
5. What is the resulting acceleration when a 300...Ch. 2 -
6. A boat moves 15.0 km across a lake in 30.0...Ch. 2 -
7. If the Sun is a distance of 1.5 108 km from...Ch. 2 -
8. How many meters away is a cliff if an echo is...Ch. 2 -
9. A car has an average speed of 80.0 km/h for 1...Ch. 2 - 10. What is the acceleration of a car that moves...Ch. 2 - 11. How much time is needed for a car to...Ch. 2 - 12. A rocket moves through outer space at 11,000...Ch. 2 - 13. Sound travels at 348 m/s in the warm air...Ch. 2 - 14. How many hours are required for a radio signal...Ch. 2 - 15. A rifle is fired straight up, and the bullet...Ch. 2 - 16. A rock thrown straight up climbs for 2.50 s,...Ch. 2 - 17. An object is observed to fall from a bridge,...Ch. 2 - 18. A ball dropped from a window strikes the...Ch. 2 - 19. Find the resulting acceleration from a 300 N...Ch. 2 - 20. What is the momentum of a 30.0 kg shell fired...Ch. 2 - 21. What is the momentum of a 39.2 N bowling ball...Ch. 2 - 22. A 30.0 kg shell is fired from a 2,000 kg...Ch. 2 - 23. An 80.0 kg man is standing on a frictionless...Ch. 2 - 24. (a) What is the weight of a 5.00 kg backpack?...Ch. 2 - 25. What net force is required to accelerate a...Ch. 2 - 26. What forward force must the ground apply to...Ch. 2 - 27. A 1,000.0 kg car accelerates uniformly to...Ch. 2 - 28. A net force of 3,000.0 N accelerates a car...Ch. 2 - 29. How much does a 60.0 kg person weigh?
Ch. 2 - 30. What tension must a 50.0 cm length of string...Ch. 2 - 31. A 200.0 kg astronaut and equipment move with a...
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Time Dilation - Einstein's Theory Of Relativity Explained!; Author: Science ABC;https://www.youtube.com/watch?v=yuD34tEpRFw;License: Standard YouTube License, CC-BY