Which one (or more) of the following values depends on an object's distance from the center of its host massive body (for example, Earth)? O a. weight (W) O b. None of the above O c. acceleration due to gravity (g) O d. mass (m) O e. universal gravitational constant (G)

I just need to know what is the Energy Conservation Equation.

What is proper time? A. The time calculated for the person moving at relativistic speed. B. The longest possible time interval between two events. C. The time measured by the clock that travels with the observer. D. The time measured by a light clock.

10) Taking the age of Earth to be about 4 ✕ 109 years and assuming its orbital radius of 1.5 ✕ 1011 m has not changed and is circular, calculate the approximate total distance Earth has traveled since its birth (in a frame of reference stationary with respect to the Sun). _____ m

3) The new Earth-Pluto SuperShuttle boasts that it can take you between the two planets, which are 5.0 hours apart in 2.5 hours (according to your watch). What time interval is measured by people in the Earth-Pluto frame? What is the shuttle's speed?

11:23 4 3 4 Time (s) 2 of 12 1 5 6. Jen made a diagram to compare speed and velocity. Which label belongs in the area marked X? a. Is always constant b. Has direction c. Includes magnitude d. Depends on a reference frame Speed Velocity 7. A train travels 600 km in 4 hours. What is the speed of the train? a. 0.007 km/h b. 604 km/h c. 150 km/h d. 2,400 km/h 8. The free-body diagrams of four objects are shown. Which object has a net force of -5 N c. Y down? a. W b. X d. Z 1F,= 20 N 20N F= 10 N F- 15 N F--10 N F= 10 N F,=-15 N F,- 15 N F,=-10 N F, = 20 N F,= -15 N JÉ = 10 N F=-10 N VF =-15N F--15 N VF, = -25 N W X Y 9. A skateboard rider starts from rest and maintains a constant acceleration of + 0.50 m/s? for 8.4 s. What is the rider's displacement during this time? a. 10 m b. 14 m с. 18 m d. 22 m 10. A sports car can move 100.0 m in the first 4.5 s of uniform acceleration. Find the car's acceleration. a. 9.9 m/s b. 12.5 m/s c. 25.2 m/s d. 45.8 m/s 11. A rolling ball has an initial…

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1.) In what way(s) is Einstein's general theory of relativity superior to Newton's theory of universal gravitation? For each way, give an example of a case where Einstein's theory provides a more accurate description of physical phenomena than does Newton's. (Select all that apply.)   A.) Newton's theory originally held that the orbit of a spherical object about another will be an open curve for which the point of closest approach slowly precesses. Einstein's theory correctly predicts that gravitational forces lead to orbits of closed ellipses.   B.) Einstein's theory correctly predicts the deflection of light passing near a massive object, while Newton's theory predicts a deflection that is one-half the observed deflection.   C.) Einstein's theory correctly predicts that the orbit of a spherical object about another will be an open curve for which the point of closest approach slowly precesses. Newton's theory originally held that gravitational forces lead to orbits of closed…

3 Recently, astronomers have observed stars and other objects that orbit the center of the Milky Way Galaxy farther out than our Sun, but move around faster than we do. How do astronomers think such an observation can be explained? J C all these faster-moving objects must be escaping from the gravity of the Milky Way and will soon be lost to our Galaxy it is the Sun that is moving too slowly because of a collision billions of years ago; the outer objects are really moving at the appropriate speed for their distance from the center Othere must be a great deal of invisible dark matter outside the orbit of the Sun whose gravitational pull explains the faster motions we see out there each of the faster-moving outer objects must be the result of a supernova explosion (giving them extra speed) O no one can come up with any explanation for this puzzling observation F3 $ 4 R F 1 H F4 V Search DII % 5 T F5 G -0- ^ 6 B F6 Y H -- F7 & 7 U N PrtScn F8 J * 8 Home | F9 M ( 9 K End F10 O PgUp L

A Space probe is launched from Earth headed for deep space. At a Distance of 10,000 miles from Earths center, the gravitational force on itis 600lb. What is the size of the force when it is at each if the following distances from earths center?  A.  20,000 miles b. 30,000 miles c. 100,000 miles