Answer:
It would be negative for sure :)
Step-by-step explanation:
Answer:
The answer is 60 minutes.
Step-by-step explanation:
Firstly you have to convert all the timing to minutes :
![60seconds = 1minute](https://tex.z-dn.net/?f=60seconds%20%3D%201minute)
![1hour = 60minutes](https://tex.z-dn.net/?f=1hour%20%3D%2060minutes)
Next you can multiply together :
![60s \times 1hr \\ = 1min \times 60mins \\ = 60minutes](https://tex.z-dn.net/?f=60s%20%5Ctimes%201hr%20%5C%5C%20%20%3D%201min%20%5Ctimes%2060mins%20%5C%5C%20%20%3D%2060minutes)
Answer:
a) ±0.73
b) ±3%
Step-by-step explanation:
One side of the right angle triangle is 12cm
The opposite angle(x) is 30 degree
Possible error = ±1degree
a) Let the hypotenus= h
h/12 = cosecx
h = 12cosecx
Differentiate h with respect to x
dh= -12cosecxcotcdx
The possible error in the angle measurement is dx
dx= ±1degree
Convert degree to radians
dx = ±1*π/180
dx = ± π/180
Put x and dx into dh
dh = -12cosec30cot30(±π/180)
= -12(2)(√3)(±π/180)
= -24√3(±π/180)
= ±24π√3/180
= ±0.73
b) To find the percentage error, recall that
dh = 12cosecx
dh = 12cosec30
dh = 12(2)
= 24
Percentage error =
(change in value/initial value) 100
Percentage error = (dh/h)100
= (±0.73/24)100
= ±0.030*100
= ±3%
<em>Question:</em>
<em>Daredevil Danny was cliff jumping. He jumped off a cliff that was 14.2 meters above the surface of the water. At the end of his jump, Danny was 2.3 meters below the surface of the water.
</em>
<em>The following equation describes this situation 14.2 + (-16,5) = -2.3
.</em>
<em>What does -16.5 tell us?</em>
<em></em>
Answer:
The displacement between his current position and his initial position
Step-by-step explanation:
Given
![Initial\ Position = 14.2m](https://tex.z-dn.net/?f=Initial%5C%20Position%20%3D%2014.2m)
![Final\ Position = -2.3m](https://tex.z-dn.net/?f=Final%5C%20Position%20%3D%20-2.3m)
![14.2 + (-16.5) = -2.3](https://tex.z-dn.net/?f=14.2%20%2B%20%28-16.5%29%20%3D%20-2.3)
Required
What does -16.5 represents?
<em>To understand this, we need to first calculate the displacement between his initial and final position</em>
<em></em>
![Displacement = Final\ Position - Initial\ Position](https://tex.z-dn.net/?f=Displacement%20%3D%20Final%5C%20Position%20-%20Initial%5C%20Position)
![Displacement = -2.3m - 14.2m](https://tex.z-dn.net/?f=Displacement%20%3D%20-2.3m%20-%2014.2m)
![Displacement = - 16.5m](https://tex.z-dn.net/?f=Displacement%20%3D%20-%2016.5m)
<em>So: -16.5m is the total displacement from the start position (i.e. off the cliff) and current position (beneath the water surface)</em>
Answer:
First statement is wrong
Step-by-step explanation:
Forgive me if I am wrong