Complete Question
The complete question is shown on the first uploaded image
Answer:
The induced emf is
Step-by-step explanation:
Now assume that the coil is shaped as a rectangle with length and width b
This implies that the area of the coil is
Now when it enter into the uniform magnetic field the magnetic flux due to its movement as stated in the question is mathematically represented as
=>
Now the induced emf is mathematically represented as
=>
The is constant because as it glides to and from the magnetic field it is displaced along the horizontal plane while along the vertical plane it is constant
Here
Where is the velocity the glide (i.e the coil)
So
We are given the formula:
V = l w h
and the following values:
l = ?
V = 1344 cm^3
w = 8 cm
h = 12 cm
SO rewriting the formula in terms of l:
l = V / w h
l = 1344 cm^3 / (8 cm * 12 cm)
l = 14 cm
Answer:
d
Answer:
10 gallons
Step-by-step explanation:
4 quarts is one gallon
so
40/4 is 10
Answer:
The idea is test if the true mean operating time without recharging is more than 400 minutes (alternative hypothesis) and the complement would represent the null hypothesis, the system of hypothesis are then:
Null hypothesis:
Alternative hypothesis:
Step-by-step explanation:
Information given
represent the sample mean time of continuous usage without recharging
represent the population standard deviation
sample size
represent the value to check
represent the significance level
t would represent the statistic for the test
represent the p value for the test
Hypothesis to verify
The idea is test if the true mean operating time without recharging is more than 400 minutes (alternative hypothesis) and the complement would represent the null hypothesis, the system of hypothesis are then:
Null hypothesis:
Alternative hypothesis:
Since we don't know the population deviation we need to use the t test with the following statistic:
(1)
Replacing the info we got: