Answer:
1st – Place the film canister on the <u>scale</u>.
2nd – Slide the large <u>weight </u>to the right until the arm drops below the line and then move it back one notch.
3rd – Repeat this process with the <u>top</u> weight. When the arm moves below the line, back it up one groove.
4th – Slide the <u>small </u>weight on the front beam until the <u>lines</u> match up.
5th – Add the amounts on each beam to find the total <u>mass </u>to the nearest tenth of a gram.
Explanation:
The triple beam balance is an instrument that is used in measuring the mass of substances to a very high degree of precision. The reading error is given by ±0.05 grams. The triple beam balance as the name implies has three beams that measure substances of different mass levels.
The beams are categorized as small, medium, and large. There is a balance on which the substance to be weighed is placed directly upon. To use this measuring device, the procedures mentioned above are followed.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The maximum emf is
The emf induced at t = 1.00 s is
The maximum rate of change of magnetic flux is
Explanation:
From the question we are told that
The number of turns is N = 44 turns
The length of the coil is
The width of the coil is
The magnetic field is
The angular speed is
Generally the induced emf is mathematically represented as
Where is the maximum induced emf and this is mathematically represented as
Where is the magnetic flux
N is the number of turns
A is the area of the coil which is mathematically evaluated as
Substituting values
substituting values into the equation for maximum induced emf
given that the time t = 1.0sec
substituting values into the equation for induced emf
The maximum induced emf can also be represented mathematically as
Where is the magnetic flux and is the maximum rate at which magnetic flux changes the value of the maximum rate of change of magnetic flux is
Answer:
Option (D)
Explanation:
n = 0.35,
Temperature of hot reservoir,
T1 = 427 C = 700 K
Temperature of cold reservoir, T2 = ?
Use the formula for efficiency of Carnot cycle
n = 1 - T2 / T1
0.35 = 1 - T2 / 700
0.65 = T2 / 700
T2 = 700 × 0.65
T2 = 455 K
Answer:
1/2 Hz
Explanation:
A simple harmonic motion has an equation in the form of
where A is the amplitude, is the angular frequency and is the initial phase.
Since our body has an equation of x = 5cos(π t + π/3) we can equate and solve for frequency f
f = 1/2 Hz