PLS HELP I'LL MARK BRAINLIEST The figure shows four forces exerted on a box.

A square is shown with an arrow pointing up labeled F3, an arrow pointing right labeled F1, an arrow pointing down labeled F4 and an arrow pointing left labeled F2

If F1 is equal to F2 and F4 is greater than F3, which statement is correct? (3 points)

a
An unbalanced force will move the box up.

b
An unbalanced force will move the box down.

c
Several balanced forces will keep the box stationary.

d
Several balanced forces will keep the box moving towards the right.

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

This is the substance(s) formed in a chemical reaction.

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f