# Physics help quick!

22. What does it mean for a force to act in accordance with an inverse square law?

The square of the force is inversely proportional to the distance.

The force decreases if the distance increases.

The force is directly proportional to 1/r2 where r is the distance.

The force is directly proportional to the distance squared.

Question 23. 23. It takes 82 years for Uranus to circle the sun once. Approximately how far is Uranus from the sun in AU, where 1 AU is the distance of Earth from the sun?

740 AU

19 AU

82 AU

6,700 AU

Question 24. 24. Why would an observer out in space see the earth orbiting the sun rather than the sun orbiting the earth?

The sun has much more mass than the earth.

The sun's gravity pulls on the earth, rather than the earth's gravity pulling on the sun.

The same force that pulls an apple to the earth pulls the earth toward the sun.

The force of gravity decreases with distance.

Question 25. 25. What is the magnitude of the earth's gravitational field at sea level?

6.67 × 1011 N/kg

4.9 N/kg

1.0 N/kg

9.8 N/kg

1. 👍 0
2. 👎 0
3. 👁 1,021
1. The force is directly proportional to 1/r2 where r is the distance.

19 AU

9.8 N/kg

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Algebra

Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 10) Which statement best explains whether an inverse variation function is the best model for the data?

asked by Melanie on July 7, 2014
2. ### physics

A 50-kg box is being pushed a distance of 6.4 m across the floor by a force P with arrow whose magnitude is 154 N. The force P with arrow is parallel to the displacement of the box. The coefficient of kinetic friction is 0.24.

asked by Lola on June 21, 2015
3. ### physics

Two forces act on an object. The first force has a magnitude of 17.0 N and is oriented 68.0° counter-clockwise from the x axis, while the 2nd force has x- and y-components (-19.0 N, 16.5 N). Express the magnitude and direction of

asked by James on November 14, 2013
4. ### Math

y varies partly as the square of x and partly as the inverse of the square root of x.write down the expression for y.when y=2,x=1and y=6,x=4.

asked by Anonymous on December 20, 2018
1. ### Physical Science

Many people mistakenly believe that the astronauts who orbit Earth are "above gravity." Earth's mass is 6×1024kg, and its radius is 6.38×106m (6380 km). Use the inverse-square law to find a height above Earth's surface at that

asked by Hannah on June 21, 2016
2. ### Physics

A ball is tossed straight up from the surface of a small spherical asteroid with no atmosphere. The ball goes to a height ewual to the asteroid's radius and then falls straight down towardd the surface of the asteroid. What forces

asked by Tammy on March 26, 2007
3. ### History help

15. The compromise of 1850 included which of the following? A. The Homestead Act B. The Fugitive Slave Act C. The Indian Removal Act D. The Missouri Act I think the answer is A,but not for sure.

asked by Summer Moriarty on April 20, 2016
4. ### Algebra

what is the inverse of the linear parent function? How would you graph the inverse and what are the values for the inverse???

asked by nicole on December 16, 2013
1. ### Physics

A 54 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 153 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done

asked by Brandon on October 13, 2008
2. ### Calculus

Air expands adiabatically in accordance with the law PV^1.4=Const. If at a given time the volume is 14 cubic feet and the pressure is 40 pounds per square inch, at what rate is the pressure changing when the volume is decreasing 1

asked by Alexa on May 1, 2016
3. ### Pre-Calc

Does y=1/x have an inverse? It is a one-to-one function, so it should be the inverse equation is the same??? yes, the inverse is the same. Check it with G(f(x)) So, when drawing the inverse, it is just the same graph?

asked by Belinda on January 21, 2007
4. ### Physics

Select as many of the following statements that are TRUE when comparing Coulomb's Law to Newton's Universal Law of Gravitation. * Both Laws are about the relationship between two masses. Both Laws are "inverse square"

asked by ina on April 9, 2020