Recent content by deenuh20

Biochemistry--Double check my answers please Homework Statement Part 1: 32 kJ/mol of free energy is needed to synthesize ATP from ADP and Pi when all reactants are at standard conditions (1M). In a human hepatocyte (liver cell), concentrations are far less. Calculate the actual free energy...

ahh got it. thanks a lot guys!

well for the first part of the problem, a=v/t, so i found the velocity by multiplying 2 m/s^2 by 6s and got 12 m/s. from this i got a displacement of 72m after 6 seconds. for the second part, i used the initial velocity of 12 m/s * 2seconds and got a displacement of 24m. This now gives me 96m...

thanks but what is "u" a variable for? plus i don't have the time it takes for it to decelerate. i only have the deceleration speed. so pretty much its just the initial velocity and acceleration that i have to work with. am i missing something?

Homework Statement A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2 for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s^2 for the next stop sign. How far apart are the stop signs? Homework Equations not sure. The Attempt at a Solution I tried to...

i'm not really sure. if there is anything pulling it up, it would be the helicopter. that is all the information they provided us with.

Crap, my bad. This is the question: If the briefcase hits the water 6.0s later, what was the speed at which the helicopter was ascending?

Homework Statement In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. He is so intent on gripping the ladder that he let's go of his briefcase of counterfeit money when he is 130m above the water.Homework Equations Vf=Vi+ax*delta t...

Thank you! I got the answer :)

*bump for viewing*

Oops! For some reason, I thought 3.6MeV was 3.6 x 10^3 eV, but its 10^6! However, I tried what you proposed in your first post, and I understand the reasoning...but I'm still not arriving at the correct answer. Here's what I'm doing: Total E= 1/2mv^2 - k(q1)(q2)/r mv^2=2k(q1)(q2)/r...

Homework Statement In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle, very far from the gold foil, with an initial kinetic energy of 3.6 MeV heading directly for a gold atom (charge +79e). The alpha particle will come...

Homework Statement A plane flies with a constant velocity of 208 m/s. The clocks on the plane show that it takes exactly 2.00 hours to travel a certain distance. Calculate how much longer or shorter than 2.00 h this flight will last, according to clocks on the ground. ________s Homework...

Thank you very much. I finally got it!

Homework Statement You take a picture of a poster on the wall of a room and maximum distance you can get from the picture is 3.1 m. The poster is 0.8 m wide and 1.2 m tall and you want it to fit in the 24 x 36 mm frame of the film in your camera. What is the largest focal length lens that...