What’s the answer for this, I have the finals today

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

What is the most useful equation for electric power?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass