Predict the state of matter and the chemical reactivity of Krypton.

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

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up