Science & Mathematics - 3 November 2006

An obect in motion keeps going because it has ______ (one word answer).

Inertia is/is not a force.

inertia would be best described as... (CHOOSE ALL THAT APPLY)
mass
resistance to change in velocity
the tendency to maintain constant velocity
the force of gravity
resistance to acceleration
a force within the object
a property of matter

A piece of cheese is at rest. A gerbil pulls to the left with 1.5 N at the same time as a mouse pulls to the right with 1.5 N.
what is the net force on the piece of cheese?
What does the cheese do in this situation? choose ALL that apply:
moves with constant non-zero velocity
accelerates at a constant rate
remains at rest
maintains constant velocity
speeds up
moves with a changing velocity
slows down

2006-11-03 07:10:41 · 4 answers · asked by vintagex50s 2 in Physics

2006-11-03 07:10:25 · 3 answers · asked by Anonymous in Mathematics

2006-11-03 07:05:01 · 19 answers · asked by Brian G 1 in Physics

2006-11-03 07:02:41 · 14 answers · asked by clairemch 2 in Earth Sciences & Geology

2006-11-03 06:59:42 · 2 answers · asked by ale8alex93 1 in Engineering

what should I do with them?

2006-11-03 06:59:21 · 2 answers · asked by Lil_One 1 in Earth Sciences & Geology

2006-11-03 06:57:59 · 13 answers · asked by Sara S 4 in Earth Sciences & Geology

I think i may have this situation

2006-11-03 06:56:02 · 2 answers · asked by Lil_One 1 in Earth Sciences & Geology

The probability that a stapler is broken is 0.2. If 10 staplers are randomly selected in a large office, find the probability that no more than 1 is defective.

2006-11-03 06:54:47 · 1 answers · asked by rustyrcfn 1 in Mathematics

The revenue from selling x units of a product is given by y=-.0002x^2+20x How many units must be sold in order to have the greates revenue?

2006-11-03 06:54:22 · 5 answers · asked by Anonymous in Mathematics

12s10 12s12

B.
5s7

C.
1

D.
none of these

2006-11-03 06:53:39 · 3 answers · asked by Anonymous in Chemistry

seawater is approximately 4.0 % by mass dissolved ions. about 85% of the mass of the dissolved ions is from NaCl.
a) calculate the mass percent of NaCl in seawter.
b) calculate the mass percent of Na+ ions and of Cl- ions in seawater.
c) calculate the molarity of NaCl in seawater at 15 Celcius degree ( d of seawater at 15 *C = 1.035 g/ml)

2006-11-03 06:53:37 · 3 answers · asked by azncrazygurl520 1 in Chemistry

whats x?

2006-11-03 06:49:35 · 10 answers · asked by p.dizzle :] 1 in Mathematics

What are the differences and what are the requirements of both?

2006-11-03 06:49:01 · 11 answers · asked by Anonymous in Medicine

a) Ten brands of aspirin are tested and it is determined whether or not each is effective.
b) Fifty people are surveyed and asked if they smoke.
c) Three hundred prisoners were surveyed and asked how many different crimes they were convicted of.

2006-11-03 06:48:34 · 3 answers · asked by rustyrcfn 1 in Mathematics

and an energy source is required in order to perform work, what is the energy source for the force of gravity?

2006-11-03 06:45:13 · 7 answers · asked by Anonymous in Physics

One tower is 50 ft high and another tower is 30 ft high. The towers are 150 ft apart. A guy
wire is to run from a point A located on the ground between the two towers to the top of
each of the towers.
a) Locate Point A so that the total length of guy wire is minimized.
b) Show in general that regardless of the height of the towers, the length of guy wire is
minimized if the angles at A between the wire and the ground are equal.

I think I have part a) but mainly need help with b). Any feedback would be amazing :)

2006-11-03 06:44:41 · 4 answers · asked by Anonymous in Mathematics

i am doing a project on potassium sorbate so i am trying to find out as much as possible

2006-11-03 06:43:51 · 2 answers · asked by martin s 2 in Chemistry

2006-11-03 06:41:47 · 8 answers · asked by albertcypr 2 in Mathematics

2006-11-03 06:41:28 · 13 answers · asked by Durty Criz 1 in Mathematics

If .740 g of O3 reacts with .670g of NO, how many grams of NO2 will be produced? Which compound is the limiting reagent? Calculate the number of moles of the excess reagent remaining at the end of the reaction.



This one took me a while...Like almost 35 minutes. I couldnt get it together. It still has my brain in an bundle!

2006-11-03 06:40:35 · 2 answers · asked by nst 1 in Chemistry

i want asummery about it...like its definition.. if it caused diseases..what about this diseases...thanks...

2006-11-03 06:40:17 · 3 answers · asked by Anonymous in Chemistry

2006-11-03 06:39:32 · 6 answers · asked by Chris B 2 in Mathematics

2006-11-03 06:39:06 · 4 answers · asked by Anonymous in Botany

is the limiting reagent. Calculate also the number of moles of NO2 produced.

Let's See What you get....This time around. Chem Lovers

2006-11-03 06:34:23 · 3 answers · asked by nst 1 in Chemistry

The height (s) of a ball (in feet) thrown with an initial velocity of 96 feet per second from an initial height of 5 feet is given as a function of the time t(in seconds) by s(t) = -16t^2+96t+5.

When I try and enter that equation as a Y1= I just get a straight line vice a curve as the graph in the example depicts. What am I doing wrong?
Thank you in advance for your help.

2006-11-03 06:32:49 · 7 answers · asked by ? 3 in Mathematics

the magnitude of the forces acting acting before n after cell division? what are dimensional changes that occur during cell division?

2006-11-03 06:32:35 · 2 answers · asked by Anonymous in Physics

2006-11-03 06:32:18 · 3 answers · asked by castille_g 2 in Chemistry

with a radius of 0.499 m and mass of 10.1 kg is brought to an angular speed of 5.88 rad/s in 0.531 s by a motor exerting a constant torque. After the motor is turned off, the flywheel makes 26.8 rev before coming to rest because of friction (assumed constant during rotation).

What percentage of the power generated by the motor is used to overcome friction?

2006-11-03 06:28:22 · 1 answers · asked by Dee 4 in Physics

with a radius of 0.499 m and mass of 10.1 kg is brought to an angular speed of 5.88 rad/s in 0.531 s by a motor exerting a constant torque. After the motor is turned off, the flywheel makes 26.8 rev before coming to rest because of friction (assumed constant during rotation).

What percentage of the power generated by the motor is used to overcome friction?

2006-11-03 06:27:39 · 2 answers · asked by Dee 4 in Engineering