1. Assume that Earth's orbit around the sun is circular, and that the radius of Earth's orbit is about 1.50 x 10 km. Earth completes a full revolution around the sun in 365 days. a. Calculate the tangential velocity of Earth in km/s (you have to convert days to seconds first). b. Calculate the acceleration of Earth towards the sun in m/s (you have to convert days to seconds and km to m first).

1. Assume that Earth's orbit around the sun is circular, and that the radius of Earth's orbit is about 1.50 x 10 km. Earth completes a full revolution around the sun in 365 days. a. Calculate the tangential velocity of Earth in km/s (you have to convert days to seconds first). b. Calculate the acceleration of Earth towards the sun in m/s (you have to convert days to seconds and km to m first).

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 5CQ: If an airplane plot is told to fly 123 km in a straight line to get from San Francisco to...

See similar textbooks

Similar questions

If an airplane plot is told to fly 123 km in a straight line to get from San Francisco to Sacramento, explain why he could end up anywhere on the circle in Figure 353. What other information would he need to get to Sacramento?
1. A circle has a radius of 10 cms. a) Find the central angle that cuts off an arc length of 17 cms (rounded to the appropriate number of significant digits if you use 3.14 as an approximation of T.) b) Find the central angle that cuts off a sector of area 40 cm2 c) Use the arc length formula to show how velocity is related to angular velocity for circular motion.
Solve the following problems. Because Earth is rotating around its axis, objects on its surface have radial acceleration. Take note that the radius of the Earth is 6,380 km and Earth rotates around its axis in 24 hours. a. What is the radial acceleration of an object at Earth's equator in m/s? b. What is the radial acceleration for an object at 20-degree latitude? c. Express your answers in parts (a) and (b) as a fraction of acceleration due to gravity, g. Using these values, explain why objects on Earth's surface are not thrown off into space.
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 20.0 days on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 2.420 × 10° km and the planet has a radius of 4.100 × 10³ km, calculate the moon's radial acceleration a. a = m/s? & TOOLS x10
11. The earth has a radius of 6380 km and turns around once on its axis in 24 h. A. What is the radial acceleration of an object on the ground at the earth's equator? Give your answer in units of m/s and compare your result with the gravitational acceleration g. B. What is the radial acceleration of an object on the ground at the earth's geographic North Pole?
an object has a radius R and a velocity V and a mass M. What happens to centripetal acceleration when A. mass doubles B. velocity doubles C. radius is halved
mass of 5.98 x 1024 kg. The radius of Earth 11. Sally has a mass of 50.0 kg and Earth has a mass of 5.98 × 10 kg. The radius of Earth is 6.371 x 10 m. a. What is the force of gravitational attraction between Sally and Earth? b. What is Sally's weight?
alt Z X C V b n m 1514 alt 1. Write the equation for the Force of gravity (weight) on the surface of the earth. 2. What is the value of little g in the equation above? 3. Calculate the force of gravity of a 20 kg mass on Mars. Radius of Mars ctrl 3.40 x 10 m Mass of Mars 6.43 x 1023 kg 4. Calculate the force between 2 asteroids. They are 1000 meters apart, one has a mass of 1,000,000 kg and the other has 10,000,000 kg. 5. The gravitational force between 2 masses is 100 newtons. What is the force if I double the mass of on of the objects? 6. The gravitational force between 2 masses is 100 newtons. What is the force if I double the distance between the masses? 7. T/F The mass of an object can change if I measure it on a different planet. 8. T/F My weight would be slightly less if I climbed to the top of the highest mountain. 9. Draw a free body diagram (force diagram) of an object suspended from a string. 10. Calculate the tension force on string A in the diagram below. Assume a…
4'2" What is the unit for centripetal acceleration? a. m/s^2 b. rad/s^2 c. m/s d. cm/s^2
The radius of Mars is approximately 2,100miles and it's acceleration due to gravity is 0.38g, where g is the acceleration due to gravity in Earth. Determine the velocity of escape of a body if it startto move away from Mars at a distance of one-tenth ofit'sradius aboveit's surface. a. 1.689 mi/sec c. 0.986 mi/sec e. none of the choices b. 0.689 mi/sec d. 1.896 mi/sec
A child plays on a merry-go-round. She covers a distance of 3.0 × 103 m in a circle of radius 20 m. Calculate the total angle through which she revolves. a. 50 b. 150 c. None of these d. 75 e. 314
NASA IS EXPECTED TO SEND A 2600 KG SATELLITE 450 KM ABOVE THE EARTH'S SURFACE. A. WHAT IS ITS RADIUS? B. WHAT SPEED WILL IT HAVE? C. WHAT IS ITS ORBITAL PERIOD? D. WHAT IS ITS RADIAL ACCELERATION?