Calculate the mass of an asteroid moving at 500 m/s moving with 125,000 kgm/s of momentum.

M = 250kg

Explanation:

Ft = M x V

Where ft = momentum

M = mass

V = velocity

Given

Ft = 125,000 kgm/s

V = 500m/s

Therefore

125000 = M x 500

Divide both sides by 500

125000/500 = M x 500/500

250 = M

M = 250kg

answer; /// the above statement is (true);

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