Physics

Why are frozen foods less affected by bacteria

We often freeze foods to preserve them. Frozen foods are less affected by bacteria. Why?-Freezing in general causes cells to slow down everything. Cells work more slowly at lower temperatures. If you

Why is it that both gravity and light travels at speed of light

Dont say because they are both mass-less cause I know. There has to be some connection?Just a cosmic coincidence?-It is more of an assumption that they do, for lack of better information.-http://www.

What two things do velocity describe

speed of travel and mass.

Am I solving this equation correctly

Coulombs law I am trying to solve for q F=K*q1q2/d squared q1 and q2 are the same so F=K*q squared/ d squared you multiple by d squared and you are left with Fd squared= K*q squared Now I divide

What shape do you get if you connect the opposite ends of a negatively shaped 2 dimensional object

Say a saddle, and its not infinitely large. Would you get a different shape if you only connect the two opposite ends verses connecting all 4 opposite ends?-If you connect two ends I think you get a

M2 mechanics helpp on motion on inclinee pleaseee :)

The frictional resistance of the motion of a vehicle of mass 750 kg is proportional to the square of its speed(I found no use of this in this question; if you do pllleasee pls explain) a. calculate th

What is the speed? What is the acceleration

An Earth satellite moves in a circular orbit 685 km above the Earths surface. The period of the motion is 98.3 min. (a) What is the speed of the satellite? (b) What is the magnitude of the centripetal

Is gravity a property of spacetime itself

I dont believe so. I believe gravity will be explained. Gravity is an attractional force between two objects.....something that pulls them together. When you have two objects being pulled together on

What is the Einstein's equivalence principle

Is he saying that gravitational force is exactly the same as a force of acceleration?-No.Nothing immediately to do with force.Also, there is no force of acceleration.Acceleration is itself NOT a force

Does acceleration depend on mass

According to general relativity that is?-In my left hand, I have a pen. In my right hand, I have a hammer. Now, if we were on Earth and I were to drop these to the ground, youd think that the hammer

Gr 11 physics help?? power

if it costs 8.9 cents/kW.h, how much would it cost to leave a 60 W bulb for one hour?-Not much. Not if that is the only consideration. 60 watts * [ 1 kw / 1000 watts] = 0.060 kw 1 kw hour costs 8.9

Can a single acceleration cancel out the effects of gravity everywhere

I know it cant, so how can the equivalence principle be true?-It is called FREE FALL. Just have your immediate environment fall due to gravity alone.Internal to it, there will seem to be no effect o

What is this spacial fabric that gravity supposed to warp

Do anyone know exactly what it is?-The path of the inertial straight line....compared to what simple Euclidean geometry thinks it should be.

Physics- need help with this problem2 please!

a 64.5 kg. person steps off a 129 kg. rowboat with a force of 34.0 N. what is the force that is applied to the person by the rowboat?-64.5 * 9.81 + 34N = 667 N

Calculate the momentum of an object that has fallen freely from rest for 15 s and has a mass of 3.4kg.

Velocity, v=u+atwhere u= initial velocity=0 as fallen freely, a= acceleration due to gravity, t=15s v=0+9.81*15 =147.15m/s Momentum = mass*velocity = 3.4*147.15 =500 kg-m/s-First, find the velocity o