A baby elephants works slowly towards the right (positive direction). The equation for the baby elephants position as a function of time is x (t) = 24 cm + (2.25 cm/s)t – (0.06 cm/5').
i. Calculate the baby elephant's initial; position, velocity and acceleration.
ii. Determine the time t when the elephant's velocity is zero.

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.