Hi everyone. I am doing a physic’s project about Newton’s law of cooling. This project was basically to evaluate the change in temperature between a cup of cooling water and the room temperature as a function of time by using different methods of heat retention (via convection & evaporation...
specific heat?
Hey guys….I need help with another problem.
Q: Below are two sets of data from an experiment to determine the specific heat of a metal sample. For which mass will t the uncertainty n the specific heat be greater? Explain your answer. The uncertainty in all temperature...
Hi everyone….I have a new question. I am writing a lab write-up and I am kind of confused about a concept. In this lab I studied the even flow of water by analyzing the flow of water through a Bernoulli’s pipe. The pipe was set up in a way that it was vertical, open at the top (where a hose...
Perplexed again!
I have two problems that I am stuck on...I don’t even know if I am going about these correctly.
1. A fountain consists of water jets mounted so that their nozzles are 2 ft above a pool. Each jet squirts water out at a 45o angle. The water lands in the pool approximately...
I am stuck on this problem...
A rowboat measures 4ft wide by 10ft long. How much (in inches) will the boat sink into the water when two 200 lbs me get into the boat?
A: I am having a hard time getting the volume of the boat…does anyone have a suggestion?
This was my plan:
W boat=...
First off, I would like to thank HallsoIvy and Loren Booda for answering my last question. I really appreciate the help! However, I am really confused again. I have two problems that I need help with.
Q:
1. trailer measures 9 feet tall (ground-to-top) and 6 feet wide. It weighs 5 tons...
Hi everyone…it feels like it has been a while but I have another question? This is dealing with vectors.
Q: A boater wants to cross a river that has a current of 5mph and measures .75 miles in width. If the boat can travel at 20mph through the water, what heading must it take in order to...
Hi everyone this is hopefully a quick and easy question:
If a person spins an object that rotates, is that considered torque?
When that object that is rotating, are the forces that act upon it: gravity, air resistance, friction, and the beginning twist from that person, Newton’s second law?