Answer:
Heat, Let me explain,
Explanation:
An exothermic reaction is like... Lighting a candle so it produces a small amount of heat in less than a second and then normal heat.
Answer:
a. 900 J
b. 0.383
Explanation:
According to the question, the given data is as follows
Horizontal force = 150 N
Packing crate = 40.0 kg
Distance = 6.00 m
Based on the above information
a. The work done by the 150-N force is


= 900 J
b. Now the coefficient of kinetic friction between the crate and surface is


= .383
We simply applied the above formulas so that each one part could calculate
Answer:20 mph
Explanation:
Given
distance between college to Tyrone=20 miles
Given professor drives with a velocity of 60 mph
he returns to college after reaching tyrone and then again drive to tyrone.
so his net displacement is 20 miles
time taken to cover 20 miles is
hr
average velocity

