Recent content by Inertialforce

Homework Statement Two hockey players, Wayne and Mario, each independently take a penalty shot. Wayne has a 7/10 chance of scoring, while Mario has a 3/5 chance of scoring. What is the probability that; a) they both miss Homework Equations P(A and B) = P(A) x P(B) The Attempt...

Homework Statement The question is as seen on the attachment. Homework Equations E = (k)(q)/r^2 The Attempt at a Solution I know that for this question I am supposed to use the equation "E = (k)(q)/r^2" but the question has me kinda confused. Could someone please tell me what my...

Homework Statement The problem is as seen in the attachment.Homework Equations T(torque) = (N)(I)(A)(B)(Sin(theta))The Attempt at a Solution For this question I used the above formula to find the magnitude of the torque, but what I am not sure about is which orientation would produce the...

Homework Statement The question is as shown on the attachment. Homework Equations F = BIL The Attempt at a Solution To find the magnitude of the force I used the equation "F = BIL" and then I put in the values for each (B=0.25, I=15, L=0.20) and I got an answer (magnitude) of 0.75...

Homework Statement In an election there are three candidates. Candidate A is twice as likely to win than candidate B and candidate B is twice as likely to win than candidate C. What is the probability that candidate A wins the election? Note: The answer is 4/7The Attempt at a Solution...

So are you saying that in the first question it is not equally likely because the question focuses on the probability of getting two heads and because there are only 1 occurrence of 2H and 2T it is not equally likely because there are 2 occurrences of 1H. While in the second question (or the...

Homework Statement I just have a small question about probability and how they determine whether or not an event is "equally likely" or not. For example, one of the questions in my textbook has a question: Two coins are tossed and the number of heads is counted. What is the probability of...

Sorry but I still do not entirely understand, could you show/tell me what equation I should start with or what I should find first? I have now included a diagram that has been given for this question.

Homework Statement What are the magnitude and direction of the electric force on the +2.0x10^-6 charge shown in the diagram (included in the attachment)? Homework Equations F = kq1q2/r^2 The Attempt at a Solution I used the Ep = kq1q2/r^2 equation and plugged in the numbers but...

Are you talking about the "p" in ΔEp? If so then the "p" together with the "E" stands for electric potential (because that's how it is written in the formula sheet that is given to us). So I take the two point potentials and find the difference between them and multiply that by the charge to...

Homework Statement An object with a charge of +4.0 x 10^-18 C and a mass of 1.1 x 10^-15 kg is held stationary by balanced gravitational and electric forces midway between horizontal charged plates. What is the applied voltage V? Homework Equations The Attempt at a Solution I...

Homework Statement A 2.5C charge is moved from a point with a potential of 12V to another point of potential 75V. How much work was done on this charge? Homework Equations ΔV = ΔEp/Q The Attempt at a Solution I am unsure how to do this question but what I did do is I took the two...

Thanks for all the help. I have now converted the diagram included with the question from word format (.doc) into pdf format. After looking at this diagram does it make solving the question any easier in terms of the information it gives you or no? Because when I looked at the questions and...

Sorry, but I do not know how to make (or change a word document into a) pdf document. If you could tell me how to do it in a few simple steps then I would be happy to change the attachment into a pdf file and re-upload it.

I'm not quite sure but I think we are supposed to solve this question using some of the methods you suggested. To better illustrate this question I have added an attachment of a diagram given to us along with the question to better see how to solve this question. I hope that it helps in some...