Recent content by brayrbob

Okay, then when it's closer than the focal point, does that mean that it's virtual and upright?

An object is located 19.5 cm from a converging mirror with a focal length of 5.5 cm. What is the distance of the image? Is it real or virtual? Is it smaller or larger than the object? Is it upright or inverted? This is the equation I need to use for the problem 1/object-mirror distance +...

So then that equation should be k = 4pi^2/T^2? 4pi^2(516.6666667)/1.00^2 = 20397.8243 is the spring constant?

Okay I have part of this problem right but am not sure how to proceed on the last part. A 50 g spring is made from a new steel/titanium alloy. Engineers determine that if a 500 g mass is hung from the spring it oscillates with a period of exactly 1.00 seconds. What is the spring's constant...

An orange spring has a spring constant of 14,000 g/s^2. How much should it stretch if a 200-g mass is attached from it? I took the equation hanging mass * gravity=spring constant * elongation and turned it around for solving elongation elongation = 200 * 980/14,000 = 14cm and I'm checking to...

The question doesn't say how long the cord is.I used the coefficient from the previous prpblem.

Thank goodness, Now I have to solve the second problem which is would a 70kg (70,000g or 154lbs) person hit the ground when jumping? Use g = 980 cm/s^2. The hint is to find the stretch distance and compare with 100 meters or 10,000cm. My question is the stretch distance and elongation...

Well here is the equation for elongation elongation * constant = mass * gravity to solve for elongation I have to change the equation to elongation = mass * gravity/constant So instead of using 60kg for the mass I used 60,000g since the other info has grams as their units. 60,000 *...

No that equation is not in this lab and the question doesn't say what the length of the bungee is. Somehow I'm supposed to find the stretch distance in problem two. Would a 70kg person hit the ground when jumping? Use g= 980cm/s^2 Hint: find the stretch distance and compare with 100 meters or...

So the gravity for the planets is the vaule of gravity? planet y has the vaule of gravity of g= 877.29cm/s^2

I have trouble remembering when to take the square root of something. You all are very helpful but algebra and physics are hard for me to understand. I do understand the basics but trust me I will be glad when I'm through with these courses. It's like a foreign language to me that I have to...

Just to let you all know I really appreciate your help. Problem A person is doing bungee jumping from a 100m platform. Let's say that the rubber cord's coefficient is k = 6500 g/s^2. Would a 60 kg person hit the ground when jumping using that rubber cord? The two equations that are given...

Here is my problem that I have partly solved. An astronaut visits planet x. She takes out a 50 cm pendulum and records a period of oscillation of 2 seconds. Then the astronaut visits planet y, takes out the same pendulum and records a period of oscillation of 1.5 seconds. Which planet has the...

Square is when I square the number like 2^2 and square root is when I take the square root of the answer. I'm in intro to Physics and doing the lab part and I understand some of the basics but tend to have problems of knowing what to do and when to do it. I'm trying hard to understand all of it...

I understand this problem, but I tried to work another problem in the same manner and my professer said I did it the wrong way. Here is that problem and the correct way to work it. How long should the lenth of a pendulum be to have a period of exactly 1.000 seconds on a "grandfather" clock...