Determine to three significant figures the gravitational force acting between two spheres that are touching each other. the mass of each sphere is 900kg and the radius is 200mm.

Step-by-step explanation:

Mass of the sphere,

Radius of each sphere, r = 200 mm = 0.2 m

Distance between two spheres, d = 0.4 m

The gravitational force acting between two spheres is given by :

F = 0.000337 N

So, the gravitational force acting on between two spheres is . Hence, this is the required solution.

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.