Learn How to Calculate cos^2 (53) with Easy Steps | Expert Tips

  • Thread starter Thread starter Hollysmoke
  • Start date Start date
Hollysmoke
Messages
185
Reaction score
0
How can I calculate cos ^2 (53)?
 
Physics news on Phys.org
What don't you understand? I assume you have a calculator and you realize that cos ^2 (53) = [cos(53)]squared.
 
Take the cos of the angle, \cos, then square the value obtained, x^2.
 
oh okay. Thanks.
 
Thread 'Struggling to make relation between elastic force and height'
Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Back
Top