Answer:
Velocity has both speed and direction. Speed is constant. ... Speed is measured over time.
Explanation:
Answer:
C
Explanation:
(c) The two cuts that are being roasted for each time-temperature combination are an example of replication.
In the question it is given that From 10 identical cuts of lamb, 2 are randomly selected to roast using each of the time-temperature combinations in the same oven. Here it is an act of copying the exact sahpe size of the lamb in all cuts, which is nothing but replication. Moreover, this replication can help in proper comparision.
Efficiency = (energy that does the job) / (total energy used)
= (45 J) / (120J)
I think you can handle the division.
Answer: The current must be equal to
amps, or ~0.9574 amps.
Explanation:
You can find the current in amperes using ohms and watts from this formula:
![I = \sqrt{\frac{P}{R} }](https://tex.z-dn.net/?f=I%20%3D%20%5Csqrt%7B%5Cfrac%7BP%7D%7BR%7D%20%7D)
Where P represents power in watts, R represents resistance in ohms, and I represents current in amperes.
You can then substitute 60 and 55 into the equation to find I:
![I = \sqrt{\frac{55}{60} } \\I = \frac{\sqrt{55} }{\sqrt{60} }](https://tex.z-dn.net/?f=I%20%3D%20%5Csqrt%7B%5Cfrac%7B55%7D%7B60%7D%20%7D%20%5C%5CI%20%3D%20%5Cfrac%7B%5Csqrt%7B55%7D%20%7D%7B%5Csqrt%7B60%7D%20%7D)
Then, simplify the denominator:
![I = \frac{\sqrt{55} }{2\sqrt{15} }](https://tex.z-dn.net/?f=I%20%3D%20%5Cfrac%7B%5Csqrt%7B55%7D%20%7D%7B2%5Csqrt%7B15%7D%20%7D)
Rationalize the denominator:
![I = \frac{\sqrt{55} }{2\sqrt{15} } * \frac{\sqrt{15} }{\sqrt{15} } = \frac{\sqrt{825} }{30}](https://tex.z-dn.net/?f=I%20%3D%20%5Cfrac%7B%5Csqrt%7B55%7D%20%7D%7B2%5Csqrt%7B15%7D%20%7D%20%2A%20%5Cfrac%7B%5Csqrt%7B15%7D%20%7D%7B%5Csqrt%7B15%7D%20%7D%20%3D%20%5Cfrac%7B%5Csqrt%7B825%7D%20%7D%7B30%7D)
Simplify the numerator by finding its factors:
![I = \frac{5\sqrt{33} }{30} = \frac{\sqrt{33} }{6}](https://tex.z-dn.net/?f=I%20%3D%20%5Cfrac%7B5%5Csqrt%7B33%7D%20%7D%7B30%7D%20%3D%20%5Cfrac%7B%5Csqrt%7B33%7D%20%7D%7B6%7D)
The current must be equal to
amps, or ~0.9574 amps.