Meter stick would not be as accurate,
Every time you placed it down and picked it back up you run the chance of losing 2-4 cm each time.
Answer:
Angular displacement of the wheel,
Explanation:
It is given that,
Angular acceleration of the wheel,
Final speed of the wheel,
Time taken, t = 4.5 s
Initially, it is required to find the initial angular velocity of the wheel. Using the first equation of rotational kinematics as :
is the initial speed of the wheel
Let is the angular displacement of each wheel during this time. Using the second equation of motion as :
So, the angular displacement of each wheel during this time is 267 radian.
The answer is C -<span> The potential energy is increasing through steps A, B, & C and then decreases </span>
A.
Heat flows from a hotter body to a colder one.
Answer:
Yes
Explanation:
Yes, bluetooth devices work in a frequency range between 2.4 - 2.485GHz. Outside this frequency the devices will not communicate with each other correctly. This frequency equals a wavelength of around 1cm. Therefore, any change in the amplitude or wavelength would need to be in relation to each other in order to maintain the frequency in the required range for the bluetooth device to work accordingly. If one increases while the other remains the same it can easily change the frequency to outside the range.