Physical Science
11th Edition
ISBN: 9780077862626
Author: Bill Tillery, Stephanie J. Slater, Timothy F. Slater
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2, Problem 14PEB
How many hours are required for a radio signal from a space probe near the dwarf planet Pluto, 6.00
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The distance between Saturn and the sun is approximately 8.9 × 108 mi. The speed of light is approximately 1.9 × 105 miles per second.
How long does it take light to travel from the sun to Saturn? Answer in units of sec.
A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3.91 x 108 km. Radio waves travel at the speed of light (3.00 x 108 m/s).(a) How far away is the space probe?(b) How many seconds does it take for the signal to reach the Earth?(c) How many hours is this?
The Moon is about 3.8 ✕ 108 m from Earth. Traveling at the speed of light, 3.0 ✕ 108 m/s, how long does it take a laser beam to go from Earth to the Moon and back again (in s)? The same physics was responsible for the noticeable delay in communications signals between lunar astronauts and controllers at the Houston Space Flight Center.
Chapter 2 Solutions
Physical Science
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 - 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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- In 1980, the Voyager spacecraft sent back beautiful photographs of Saturn via radio transmission. If the distance between Earth and Saturn was 1.277 x 1012 m, how much time (in minutes) was required for the transmission?arrow_forwardThe moon is about from Earth. Traveling at the speed of light, m/s, how long does it take a laser beam to go from Earth to the Moon and back again? The same physics was responsible for the noticeable delay in communication signals between lunar astronauts and controllers at the Houston Space Flight Center.arrow_forwardA space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 7.88×10^7km. Radio waves travel at the speed of light (3.00×10^8m/s). How many seconds does it take for the signal to reach the Earth?arrow_forward
- A space probe on the surface of Mars sends a radio signal back to the earth, a distance of 7.37 x 10^7 km. Radio waves travel at the speed of light (3.00 x 10^8 m/s). How many seconds does it take for the signal to reach the eartharrow_forwardThe distance from the Earth to the moon is 239,000 miles. The distance from the Earth to the moon is 385000 km. Given that light travels at 3.00 × 10⁸ m/s how many minutes does it take for light to travel to the moon?arrow_forwardHow much time t (in seconds) does it take light to travel from the Moon to the Earth, a distance D = 384,000 km? Assume the speed of light is c = 3.00x108 m/s.arrow_forward
- An ultrasound doppler meter is used to detect motion for an alarm system. The unit emits an ultrasound signal and its echo is detected back at the same unit. If the unit emits a frequency of 100 MHz and is only able to detect a change in frequency of the reflected sound greater than 8.0 kHz, what is the maximum speed that an intruder can travel at relative to the unit whilst remaining undetected? Take the speed of sound in air to be 343 m/s. 6.0 cm/s 2.0 cm/s 1.0 cm/s 12cm/s 1.4 cm/s 2.7 cm/s agonal crystalline growth in the s from the normal of the first icular to the plane of the page he refractive index of the efractive index of the ng ray most closely representsarrow_forwardAn object has a velocity given by i = (5.0i – 12j)m. How fast, and in what direction is the object moving?arrow_forwardAn ultrasound doppler meter is used to detect motion for an alarm system. The unit emits an ultrasound signal and its echo is detected back at the same unit. If the unit emits a frequency of 100 MHz and is only able to detect a change in frequency of the reflected sound greater than 8.0 kHz, what is the maximum speed that an intruder can travel at relative to the unit whilst remaining undetected? Take the speed of sound in air to be 343 m/s. 6.0 cm/s 2.0 cm/s 1.4 cm/s 2.7 cm/s 12 cm/s 1.0 cm/s 24 O A stv MacBook Airarrow_forward
- A man decided to ride his car at 10 kph for the first 5 seconds. He then accelerates at 1 m/s for the next 5 seconds, 2 m/s for the next 5 seconds, 3 m/s2 for the next 5 seconds, and so on and so forth. (a) At what time will he reach a velocity of 60 kph? (b) What is the total distance (m) traveled after he has reached a velocity of 60 kph?arrow_forwardLight travels at a speed of 3*108 m/s (also known as the constant c). The distance a light ray travels in one year is called a lightyear (9.461*10^15 m). Alpha Centauri is the closest star and planetary system to Earth at a distance of 4.37 Lightyears from earth. Captain Archer has been ordered to make his way to the staircase at Alpha Centauri to drop of supplies. If he travels to Alpha Centauri and back at a Warp factor of 4 (100c) How many days would it take him to make his round trip?arrow_forwardthe earth is approximately 1.5x10^8 km from the sun. how many minutes does it take light to travel from the sun to the earth? light travels at a speed of 3.00 x10^10 m/sarrow_forward
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