8) one direction is, ironically, not traveling in one direction (i know they aren't current i'm more of a big
time rush guy myself). their car moves at a constant velocity of 4 m/s in the +x direction. in the +y
direction, they start from rest but accelerate up at 1.5 m/s2. determine the car's position horizontally
(in the x-direction) after they have traveled 21 m in the y-direction. show your work! hint: time is one
variable can you find in y which can also be used in x? (16 points)
how do i do this?

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.