A flowerpot exerts a force of 20 N on a table. Which force prevents the flowerpot from pushing through the table and landing on the
ground?
• a 20 N force of Earth pushing up on the flowerpot
• a 20 N force of the table pushing up on the flowerpot
• a 40 N force of Earth pushing up on the flowerpot
• a 40 N force of the table pushing up on the flowerpot

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?

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c