Acar in an amusement park ride rolls without friction around a track (fig. p7.42). the hb car starts from rest at point a at a cr height h above the bottom of the loop. treat the car as a particle. (a) what is the minimum value of h (in terms of r) such that the car moves around the loop without falling off at the top (point b)

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system