Answer:
Minimum percentage error = 20%
Explanation:
The zero error of the screw gauge is
(5*0.5)/50 = 0.05 mm
Least count on the circular scale is 0.5/50 = 0.01 mm
Equivalent circular scale reading = 0.01 * 25 = 0.25 mm
Reading on the main scale = 2 * 0.5 = 1 mm
Actual measurement = 1 +0.25-0.05 = 1.20 mm
The minimum percentage error in the reading will be (1.20 mm -1.00 mm)/1*100 = 20%
Isothermal process<span> is a </span>change<span> of a </span>system<span>, in which the </span>temperature<span> remains constant: Δ</span>T<span> = 0. So, if the thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged than this process is isothermal.
</span><span>The Joule's second Law states that the internal energy of a fixed amount of an ideal gas depends only on its temperature. So, isothermal processes are of great interest for ideal gasses.</span>
Answer:
An electromagnet is the device through which runs current and it creates a magnetic field.
Answer:
7. (D) uniformly accelerated vertical motion
8. (A) zero
9. (A) zero
10. (C) parabolic
Yellow has the lowest density. I took the test and got this question correct. :)