Physics ! on the surface of the moon an astronaut has a weight of fg = 140 n. the radius of the moon is rm = 1.74 x 106 m, the gravitational constant is g = 6.67 x 10-11 n m2kg2 and the mass of the moon is mm = 7.35 x 1022 kg. solve numerically for the mass of the astronaut ma in kg.

Mass of the astronaut is 86.45 kg

Explanation:

It is given that,

Weight on the surface of astronaut,

The radius of the moon is,

The gravitational constant is,    

Mass of the moon,  

We need to find the mass of the astronaut. It can be calculated using the formula as :

m₂ = mass of the astronaut

m₂ = 86.45 kg

So, the mass of the astronaut is 86.45 kg. Hence, this is the required solution.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27