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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
Part (a) Calculate the Earth's average speed relative to the Sun in meters per second.
Avg Speed of Earth = ______
Part (b) What is the Earth's average velocity relative to the Sun over a period of one year in meters per second?
v = ______

Transcribed Image Text:Problem 4: The planet Earth orbits the sun with a period of one year. In this problem, you may
assume the radius of the Earth's orbit is 1.50 × 108 km.
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- If an average-size man jumps from an airplane with an open parachute, his downward velocity t seconds into the fall is v(t) = 20(10.2) feet per second. (a) Use functional notation to express the velocity 3 seconds into the fall. Calculate it. ft per sec (b) Explain how the velocity increases with time. Include in your explanation the average rate of change from the beginning of the fall to the end of the first second and the average rate of " change from the fourth second to the fifth second of the fall. This answer has not been graded yet. (c)-Find the terminal velocity. ft per sec (d) Compare the time it takes to reach 99% of terminal velocity here with the 25 seconds it took a skydiver with his parachute closed to reach 99% of terminal velocity in Example 2.1. On the basis of the information we have, which would you expect to reach 99% of terminal velocity first, O feather feather or a cannonball? O cannonball Need Help? Read Itarrow_forwardTectonic plates are large segments of the Earth’s crust that move slowly. Suppose that one such plate has an average speed of 3.8 cm/yr.Assuming the plate maintains the given speed for 1.0 s, how far, in meters, does it move? and what is its average speed in kilometers per million years?arrow_forwardA piece of wood moves at a velocity (measured in millimeters per year) of v(1) = r² – 3t – 4 where 1 = 1 would be the end of the first year. If a is the displacement of the wood in the first 5 years and b is the distance traveled in the first 5 years, what is a- b? None of the listed answersarrow_forward
- The acceleration of an object (in m/s2) is given by the function a(t)=8sin(t)a(t)=8sin(t). The initial velocity of the object is v(0)=−10v(0)=-10 m/s. Round your answers to four decimal places.a) Find an equation v(t) for the object velocity.v(t)v(t) = −8cos(t)−2Correct b) Find the object's displacement (in meters) from time 0 to time 3.3.4187Incorrect metersc) Find the total distance traveled by the object from time 0 to time 3. metersarrow_forwardUSE THE CORRECT NUMBER OF SIGNIFICANT FIGURES IN THE ANSWER!arrow_forwardA car is traveling at a speed of 29 m/s on an interstate highway where the speed limit is 76 mi/h. Is the driver exceeding the speed limit? What is the car's speed in mi/h? Observe correct number of significant figures in your final answer.arrow_forward
- The 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_forwardThe time it takes a car to travel from City A to City B is measured as 51 min ± 8 min. The time it takes the car to travel from City B to City C is measured as 47 min ± 6 min. What is the total measured time for the car to travel from City A through City B to City C?arrow_forward
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