You are leaving for a party at your cousin’s house in a city that is 150 km away. you will travel at an average rate of 50 km/hr. how long will it take you to arrive? hours if you need to be at the party in 2.5 hours, how fast would you need to drive to get there? km/hr

3.0 h; 60 km/h

Explanation:

Part 1:

The formula for speed (s) as a function of distance (d) and time (t) is

s = d/t               Multiply by t

st = d                Divide by s

t = d/s

d = 150 km

s = 50 km/h     Calculate the time

t = 250/50

t = 3.0 h

Part 2:

t = 2.5 h           Calculate the speed

s = 150/2.5

s = 60 km/h

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

the answer is minerals.