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Thank you for your help!

I tried many times, but I can't get the answers. My possible answer as follow:
1. Both
2. Neither
3. String Theory
4. String Theory
5. Standard Model
6. String Theory

Could you please tell...

Indicate where the following statements concerning the Standard Model of particle physics is true or false.
1. The mass of the W and Z particles that transmit the weak force are relatively large....

Indicate whether the following facts about the Universe are results from WMAP. (is or is not)
1. The first stars formed about 200 million years after the Big Bang.
2. At the present it appears the...

Match the following statements to the corresponding theory. Please Help, thanks in advance!!
A. String Theory
B. Standard Model
C. Both
D. Neither

1. Attempts to be a theory of everything by...

Please help me with this problem, I don't know how to do it. Please! Please! Thanks in advance.

An ac generator has a circular coil of 500 turns and diameter 0.640 m which rotates about an axis in...

I need help with the question, can someone please help, I don't know where did I do it wrong. Thanks in advance.

Select True or False for each of the following statements regarding magnetism, and...

Can someone help me with this question, I really don't know how to do it. Thanks in advance.

What electric force would a stationary 5.1 C charge experience if it were far away from any other...

I need help with this question, I don't know how to do it. Thanks in advance.

Q: What electric force would a stationary 5.1 C charge experience if it were far away from any other charges?

I...

My answer as follow:
1. True, because depends on the second law it is impossible to transfer the complete heat to work.
2. I guess is false, I am not sure about this. But I know the entropy is...

I tried a lot, and I don't get the answer. Please help! Thank you in advance.

Indicate true or false whether the following statements are a consequence of the second law of thermodynamics.
1. No...

I need help with the vector addition, I tried many times but always got the wrong answer, Thank you in advance.
The problem as follow:
Select an answer for each... below.
For an observer on shore,...

Thank you, I got the right answer, which is 56.01 N

I got the answer 0.0000063259, and i don't think this is the right answer. Also, I am not sure about the unit.

Can someone help me with the question, I really don't know how to do it. Thanks in advance.
The Problem as follow:
Imagine that it is possible to take a 6 kg mass and raise it straight up off...

I don't know how to do this problem that's why I am asking for help, if you can show the procedure of each steps that would be great.

Select an answer for each... below.
1. For an observer on shore, the speed of the boat for F is... for D
2. Time to row across for C is... for J
3. Time to row across for K is... for B
4. The...