Acar and a truck are moving in the same direction on the same highway. the truck is moving at 50mph and car is traveling at a constant speed. at 3: 00pm, the car is 30miles behind the truck and at 4: 30pm the car overtake and passes the truck. what is the speed of the car?

70 mph

Explanation:

We can write the position of the car at time t as

where is the speed of the car, while the position of the truck is

where

is the initial distance between the car and the truck (at 3:00 pm)

is the speed of the truck

The car overcomes the truck when they have same position, so

This occurs at 4:30 pm, so 1:30 h (1.5 h) after the initial instant. So, by using

t = 1.5 h

And solving the equation for , we find the speed of the car:

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge