You are observing the boiling point
So, you know how to add, right? Subtraction is just taking the negative one, making it the other direction, and then adding the two in the proper order. So, for example, a 1.00 cm long vector 45 degrees above the x-axis, and the same below it (let the first be a and the second be b, and have both be directed away from the origin). A-B in that case would be the square root of 2, at 90 degrees off the x-axis. The first file I attached was the regular adding, and the second was the subtraction.
W = 25 J
Explanation:
Work done on an object is defined as
Answer:
e. none of these
Explanation:
An object in FREE-FALL on the MOON would experience only acceleration
Answer:
The average speed is 3.5 mi/h
Explanation:
Average speed is given by
If the total distance covered is mi,
Then mi was covered while hiking and
mi was covered while running.
Now, we will find the time taken while hiking and the time taken while running
- For the time taken while hiking
Speed = 2.9 mi/h
Distance = mi
From,
Time = h
Time taken while hiking is 0.2299 h
- For the time taken while running
Speed = 5.6 mi/h
Distance = mi
Time = h
Now, for the average speed
Total distance = mi + mi = mi
Total time = + = h
∴
Average speed = 3.4552 mi/h
Average speed ≅ 3.5 mi/h