Homework Statement
Figure shows a forearm holding a book.
a.) Calculate the force the biceps muscle must exerts to hold the forearm and the book.
**all answers should be in three sigdigs.
Homework Equations
\tau = Frsin\theta
F=ma
The Attempt at a Solution
Well, I assumed that...
Homework Statement
1. What atomic orbital/orbitals are available for bonding for S (Sulfur) and F (Fluorine)?
2. How many electrons are in an orbital formed from the overlapping of two atomic orbitals, which are different?
Homework Equations
N/A
The Attempt at a Solution
1. For this...
Population Dynamics!
Homework Statement
2 species of ground finch, Geospiza fuliginoas and Geospiza fortis, living in the Galapagos Islands display interesting variations in bill size. On the island of Santa Maria, inhabited by both species, the average bill depth of the G.fuliginosa is 8.1...
Homework Statement
An average of 20 000 people visit the Lakeside Amusement Park each day in the summer. The admission fee is $25.00. Consultants predict that, for each $1.00 increase in the admission fee, the park will lose an average of 750 customers a day. Determine the function that...
Can someone please 'stupify' the definitions of an elastic and inelastic collision?
Do objects bouncing off of each other undergo elastic collisions, while objects which stick together undergo completely inelastic collisions? This concept is very confusing to me :S
thank you!
hmmm, so, say, if both objects traveled at the same velocities, yet with different masses, before colliding, they would have the same momentums? My physics textbook gave an example of equal momentum between two objects: A high-speed car would have the same momentum as a slow moving truck.
And...
The law of conservation states that if two objects have a net force of zero, and if they were to collide with one another, the change in momentum of one object is equal in magnitude, but opposite in direction, to the change of momentum of the other object.
Knowing this, what would happen if...
Hey guys,
I got a test tommorow regarding Work, Efficiency, Conservation of Mass, and all those other things. And I needed help with this question regarding work with friction. Oooh, I wish I was good in physics :( If anyone knows the answer, please post and tell me how to do it properly. Many...
Hey guys,
This is my first time using these forums, so forgive me if I do/post anything wrong! Anyways, I need help on a question...and this might be on a physics test I'm having tommorow. I'm not that great in physics, so I need a bit of help. If anyone can tell me their opinion, please do so...