The gravity on the Moon is 1.62 m/s2 and the gravity on Earth is 9.8 m/s2. What is the weight of a 20-kg cannonball on the Moon and the Earth? Question 1 options: Moon 2.24 N; Earth 2.96 N Moon 32.4 N; Earth 196 N Moon 22.4 N; Earth 29.6 N Moon 3.24 N; Earth 1.96 N

Explanation:

Given parameters:

Gravity on the moon  = 1.62m/s²

Gravity on earth  = 9.8m/s²

mass of cannon ball  = 20kg

Unknown:

weight of cannonball  = ?

Solution:

The weight of an object is the vertical force on a body as a result of a gravity:

                W   =    m  x  g

where m is the mass

             g is the acceleration due to gravity

mass is the same everywhere if the amount of matter does not change.

 Weight on moon =  m x g  = 20 x 1.62  = 32.4N

 Weight on earth = m x g  = 20 x 9.8  = 196N

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

seeing the graph would