What's the best website i can go to to study physics?
http://www.splung.com/ helped me a lot when I was taking physics... I tried some searching... http://physics.cramster.com/ has examples and solutions, but you have to be member. Free members can only see some of the problems, whereas premium can see all. http://www.physics247.com/ seems organized. Best of luck with physics. Was my hardest class, to be sure.
Can somebody find the online answers to my practice AP physics b test ?
What year is it? BTW, is there an answer that says 1200 J for that question? --------------------------------------... *EDIT* My bad! I have the answers for that: MC 1C 2C 3A 4A 5B 6D 7B 8E 9A 10C 11A 12B 13D 14C 15E 16E 17D 18E 19C 20A 21A 22E 23B 24B 25B 26C 27E 28A 29D 30E 31A 32C 33A 34A 35C 36E 37B 38E 39A 40A 41D 42A 43E 44D 45D 46C 47C 48E 49B 50B 51A 52D 53C 54B 55C 56C 57E 58D 59B 60D 61A 62B 63D 64C 65E 66E 67E 68C 69B 70D That's the multiple choice answers
Physics practice problems?
Consider the pitcher throwing the ball below. If he is conveniently on a tower so that the ball is 4.9 meters off the ground when throwing horizontally, and the ball lands 20 m downrange, then the speed of the ball is easily calculated. What is this speed, and why does the 4.9-m elevation makes the calculation convenient. The speed of the ball =______ If the projected ball is not thrown horizontally but rather at an angle above the horizontal, the problem is more complicated. What are some complications, and how can they be minimized? PLEASE HELP
What are some helpful resources for AP Physics 1?
AP Physics 1 Essentials is an easy-to-read guide to the entire AP Physics 1 course, featuring more than 600 worked-out problems with full solutions and deeper understanding questions.AP Physics 1 Essentials: An APlusPhysics GuideAP Physics 1 Essentials covers all major topics included in the AP Physics 1 course, including:kinematics,dynamics,momentum,impulse,gravity,uniform circular motion,rotation,work,energy,power,mechanical waves,sound,electrostatics,circuits.AP Physics 1 Essentials is integrated with the High School Physics and AP Physics Online website, which includes online question and answer forums, videos, animations, and supplemental problems to help you master the essential concepts of physics.This book is designed to assist physics students in their high school AP Physics courses both as a guide throughout the course as well as a review book to assist in end-of-course exam preparation.Its focus is on providing the bare bones, essential concepts necessary for success in the course in a straightforward and easy-to-read manner, leaving development of in-depth problem solving and lab work to the classroom, where it is most effective.In short, this is not intended as a substitute for a standard textbook or course, but rather as an invaluable supplementary resource.This new 2nd edition includes more than 90 AP-style problems to test your understanding and help prepare you for the AP Physics 1 Exam.Additional supplemental problems are available on the APlusPhysics website.
Physics question!!! how do i find mu k if given the mass, the angle, and the acceleration?!?
Okay- this is easier than you think. Because Fnet = (mass)(acceleration), you can do this problem fairly easily. First, you're going to be using the angle and the mass. To find the normal force of gravity, you multiply 9.8 times the mass. However, you need to figure out the force of gravity's affect on the incline plane. To do this, do: (mass)(9.8)(sin[angle]) = Force of gravity's x component. Now you do Fnet = (mass) (acceleration) to solve for the force of friction. (Ffriction) - Fg x = mass * acceleration You should be able to use that to find the Force of friction. Now here are the final two steps. You need to find the normal force on the incline plane, which requires: (mass)(9.8)(cos[angle]). That is your normal force. Then do Force of Friction = (mu k) Force Normal, and solve for mu K
Physics help!! Vector Direction & Vector Addition?
for the first link it looks like they want you to measure the length of the lines they put on the graphs.. using the scale for Xm/s per cm you simply multiply the length (in cm) by the scale.. like for the first one you would measure 3.6cm and multiply by the scale of 10m/s for each cm to get a speed of 36m/s. then it wants you to find the direction because vectors give the information of speed and direction. I'm guessing they meant for people to use a graphing compass to find the angles. for the second link it looks like they want you to add the vectors.. it seems like the easiest way to find the answer would be to treat it like a triangle and use geometry to find the missing length.. using Soh Cah Toa Hope i helped
High School Physics problem?
I understand that what we learn in high school physics class is somewhat different than the "real" physics. I need help with a high school physics problem. In 1994, a tower 22.13 m tall was built of Lego blocks. Suppose a block with a mass of 2.00g is dropped from the top of this tower. Neglecting air resistance, calculate the block's momentum at the instant the block hits the ground.