RIPHarambe

For a physics assignment

Include source please!

Suppose there is a zinc and copper sulfate reaction. What would contaminants do to the rate of a reaction, if they were non reactive?

I did a reaction of copper sulfate and zinc.

Is T in the Arrhenius equation the temperature of the solution or the temperature of the surroundings?

Hey I have an instagram photo with me holding a chicken. What's a good caption?

A bricklayer’s apprentice is dragging a tray of bricks up a 50° inclined plank by pulling on a rope attached to the tray. The rope is parallel to the plank. If the load of bricks has a mass of 40 kg and the coefficient of friction is 0.6, calculate the force in the rope.

Rosie is driving a 2.0Tonne car travelling at 20ms-1 experiences a force of 1.0x104N for 0.8s when the brakes are applied. What is its final speed?

Jeremy is driving a car of mass 2.2x10^3 kg skids on an icy road and hits a 44kg "big bin" sitting by the kerb. The bin rebounds over the kerb at 10ms-1. What is:

a) the change in momentum of the car?

b) the impulse on the car?

c) the change of velocity of the car?

Integrate:

f(x) = (x^3 + 8) / (x+2)

Fuels that have an oxygen in their structure, such as Biodiesel, burn cleaner than fuels without oxygen.

Why is this? Can someone PLEASE explain the chemistry behind this?

As you know, the rate of heat transfer is R, which is basically Q/t.

Q= mc * dt

So, would the rate of heat transfer be R= (mc * dt)/time ?

Consider the reaction:

H2 + O2 = H2O

If 45.2 L Oxygen and 98.1 L Hydrogen, at STP react, what mass of water vapour is formed?

Hi guys, I need assumptions AND the effects of the assumptions for the following experiments:

1) Rolling a ball down a ramp, and recording time values for different ramp angles

2) Passing different voltages across a bulb to obtain different luminosities

Simplify the following WITHOUT THE USE OF A CALCULATOR :

2log 27 / log 9

BTW both of them have base 2

In parallelogram PQRS, A and B are points on PS and QR respectively such that PQBA is a cyclic quadrilateral. Prove that the quadrilateral RSAB is also cyclic.

Please attack a diagram of the solution :) :) :)

Each of three boxes has two drawers. One box contains a diamond in each drawer, another contains a pearl in each drawer and the third contains a diamond in one drawer and pearl in the other. A box is chosen, a drawer is opened and found to contain a diamond. What is the probability that there is a diamond in the other drawer?