PLS ANSWER FAST THIS IS TIME TEST AND WILL GIVE BRANINLY Answer using mass m= F divided by a

Also use kilograms {kg}

A tiny aeroplane accelerates at 35 m/ s2 with a force of 20 N. What is the mass of the aeroplane?

0.57 kg

Explanation:

We are given that

Force, F=20 N

Acceleration ,a =

We have to find the mass of Aero-plane.

To find the value of mass we will divide the force by acceleration.

We know that

Force, F=ma

Using the formula

Hence, the mass of the aero-plane=0.57 kg

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

it has to be b, about 97 percent.