Basic Python programming.

please don't use any loops or list

use math operators

7.Write a program that prompts the user to enter a four-digit integer and displays the number in reverse order. (hint: use math operators, using loops or list will result in a zero score)

Here is a sample run(blue user input):

Enter an integer: 3125

5

2

1

3

8.The radius and mass of the Earth are r = 6378 X 103 meters and m1 = 5.9742 X 1024 kg, respectively. Mr. Jones has a mass of m kg. Prompt the user to input m and then calculate the gravitational force (F) and acceleration due to gravity (g) caused by gravitational force exerted on him by the Earth.

The formula: g = [G(m1)(m)(r^2)] / m

Let the universal gravitational constant G = 6.67300 X 10-11 (in units of m3kg-1s-2 assuming the MKS meter-kilogram-second] system). Check that the resulting value of g is close 9.8 m/s2. The ? are decimal places-you should format to 4 decimal places.

Here is a sample run(blue user input):

Enter a mass in kg: 30

The resulting value of g is 9.8??? which is close to the earths gravitational force.