Recent content by InertialRef

Ohhh. Yes, that makes sense. Thank you so much! :)

Homework Statement Use polar coordinates to find the volume of the solid bounded by the paraboloid z = 47 - 5x2 - 5y2 and the plane z = 2. Homework Equations x2 + y2 = r2 x = rcosθ y = rsinθ The Attempt at a Solution I substituted the z = 2 into the equation given, 2 = 47 -...

Homework Statement A circuit is constructed with a resistor, two inductors, one capacitor, one battery and a switch as shown. The value of the resistance is R1 = 481 Ω. The values for the inductances are: L1 = 281 mH and L2 = 163 mH. The capacitance is C = 85 μF and the battery voltage is V...

Alright, thank you. :) I think I got it now. I do have one more question though. Is the method used to find the enclosed charge different depending upon what type of field you are dealing with?

Homework Statement https://www.smartphysics.com/Content/Media/Images/EM/03/h3_lineD.png Where, λ1 = -3.2 μC/cm, λ2 = 9.6 μC/cm, a = 8.5 cm and h = 11.4 cm. a/2 = 4.25 cm. What is the total flux that passes through the surface of the cylinder? Homework Equations E = 2kλ/r \Phi...

Homework Statement A man with mass m1 = 69.0 kg stands at the left end of a uniform boat with mass m2 = 163.0 kg and a length L = 2.8 m. Let the origin of our coordinate system be the man’s original location as shown in the drawing. Assume there is no friction or drag between the boat and...

That was right, thank you! I was worried I was making a mistake in my reasoning. I'm glad that wasn't it. I should double check my numbers before punching them into the calculator blindly next time. Thanks again! :D

Homework Statement A person with mass m1 = 67.0 kg stands at the left end of a uniform beam with mass m2 = 91.0 kg and a length L = 3.3 m. Another person with mass m3 = 56.0 kg stands on the far right end of the beam and holds a medicine ball with mass m4 = 12.0 kg (assume that the medicine...

So, would I be correct in saying that since the change in PE is equal to the change in KE, in both frames of reference, then this indicates that the energy is conserved and the only reason the two observers don't calculate the same values for mechanical energy is because the zero of the...

Whoops, sorry about that. Mixed up PE with KE, my mistake. Yes, I can see why the balloon's height is negative. From the frame of reference of the student, the height is positive, so from the frame of reference of the chancellor, the height is negative. Potential energy decreases as it comes...

Homework Statement a)Suppose the chancellor of the university drops a 2.00 kg water balloon from the administration building balcony 10.0 m above the ground. The chancellor takes the origin of his vertical axis to be even with the balcony. A student standing on the ground below the...

Homework Statement A box rests on top of a flat bed truck. The box has a mass of m = 15.0 kg. The coefficient of static friction between the box and truck is μs = 0.8 and the coefficient of kinetic friction between the box and truck is μk = 0.63. I had previously calculated in an earlier...

It's an Atwood's machine, so you should be able to modify the Atwood's equation for acceleration to fit the specifications for an incline, and then solve for acceleration. From there, I'm assuming you would use kinematics equations to solve for the time it takes for each block to travel the...

I'm not completely sure about that, since it's a first year physics course. But if they were asking for a deeper explanation, wouldn't that involve discussing the types of bonds that make up the material?

Homework Statement What is a mechanism that might cause a rubber band or a string to develop tension in response to a force that you apply? What mechanism explains how walls and tables exert normal forces without bending noticeably? Homework Equations None, since this is a...