(go to insert Drawing → New) 1. A 400g mass is resting on an index card.
a. Show your work in determining the weight and the normal force acting on the
object
b. Draw force vectors for those same two forces, weight and normal force
(remote/concurrent students may edit the drawing to include the vectors).
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C. If the sled were pushed with increasing force until it started moving. The force
recorded at the instant the sled began to move is 4.38N. What is the acceleration
at that very instant?

Arock collection comes from which part of earth?

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?

Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places