# Posts by Amal

Total # Posts: 45

**Math**

I have 3 more tens than 27.what number an i?

**Organic chemistry**

Nitrobenzene + KOH >>>>> ???

**Analytical chemistry**

Why HNO3 only can used for acidification in volhard method not other acids like HCl or H2SO4?

**Government**

Pretty sure 2 is b because congress has the power to set up an irs which is implied or enumerated powers

**st anns**

one egg thrown to a cement block from a height of 20 feet it didn't break why?

**Science**

43.84

**trig**

Solve (1+tan square A)(1-sinA)(1+ sinA)

**math**

there are 5 square flower beds of 1 metre dog so 5 multiply by 1 = 5 650 multiply by 800=5200 -5 = 5195

**physics**

a)s = ut + 0.5at^2 s = distance = 1800m, u = initial velocity = 0, a = acceleration = 5m/s^2, t = time 1800 = 0 + 0.5*5*t^2 t^2 = 1800/2.5 = 720 t = 26.83 s (to 4 sig figs)

**chem**

A gas has a volume of 4.00 L at 0 oC. What final temperature, in degrees Celsius, is needed to change the volume of the gas to each of the following, if amount and pressure do not change

**chemistry**

11. A sample containing 4.80 g of O2 gas has an initial volume of 15.0 L. What is the final volume, in liters, when each of the following changes occur in the quantity of the gas at constant pressure and temperature?

**math**

36 banners

**ثاني جامعة_انجليزي**

اسئلة لرواية جيليفر

**math**

One out of 42 high school ball players plays college ball. One out of 41 college players plays professional ball. What fraction of high school players plays professional? ball?

**math**

240/6oo X 100=40%

**Chemistry**

0.05 M

**physics**

6 electric lamps connected in parallel at 100 volt explain how they are connected to operate at 200 volts without spoiling them.find the total current intensity in the circuit if the resistance of each lamp 240 Ohm

**physics**

6 electric lamps connected in parallel at 100 volt explain how they are connected to operate at 200 volts without spoiling them.find the total current intensity in the circuit if the resistance of each lamp 240 Ohm

**calculus**

(x+1)^4/4+c *

**calculus**

9x+1)^4/4+c

**Math**

4x=33+3y x=33+3y/4 x=-4-25 33+3y/4=-4-25 33+3y=-16-100 19y=-133 y=-7 x=3

**Math**

4x=33+3y x=33+3y/4 x=-4-25 33+3y/4=-4-25 33+3y=-16-100 19y=-133 y=-7 x=3

**Math**

y=12-2x in eq.2.....y=3x-13 12-2x=3x-13 5x=25 x=5...y=2

**Math**

yes it can as their some equal 180

**Math**

x=y+3/5 in eq.(2)...y=2(y+3/5)+6 y=2y+6/5 +6 y-6=2y+6/5 5y-30=2y+6 3y=36 y=12 & so x=3

**Math**

y=12 & x=3

**math**

draw apieceof yarn3 counters

**physics**

A fire hose can fill a certain tank with water during 1 hour. A 2nd fire hose can fill the same tank in half hour. A 3rd fire hose can fill the same tank in quarter hour. find the time necessary to fill the same tank by the 3 fire hoses together

**physics**

calculate the momentum ofa toy car weighing 200 gram and moving with a velocity of 5meter/second?

**physics**

18.87

**algebra**

Oh! A play is move! I get it! No need to answer this one!

**algebra**

I am confused about this one. It is about football. "In a football game the ball was advanced 5 yards from the Juniors' 25-yard line towards the Seniors' goal, then 6 yards then 8 yards back, 13 yards forward, 5 yards back, and then 11 yards forward. What was the ...

**Physics**

Here, I am dealing with a Science formula for momentum. The formula is: M= mv So, I have: m= 10 grams (.01 Kilograms) v= 5,000 centimeters a second (50 m/s) It says to Find M and also solve the formula for M. Please help!

**algebra**

Please help! I'm still waiting!

**algebra**

The answer differs from yours.

**algebra**

We know man 1 drives 50 miles per hour man 2 goes 55 mph

**algebra**

A man (we'll refer to him as man 1) starts from his home at 8 A.M. and drives a steady rate of 50 MPH. An hour later a second man ( man 2) starts to follow him. Draw a graph to represent these facts. From the graph find when man 2 overtakes man 1. Okay, I imagined at 9 A.M...

**Physics**

I really would appreciate some help!

**Physics**

Here, I am dealing with a Science formula for momentum. The formula is: M= mv So, I have: m= 10 grams (.01 Kilograms) v= 5,000 centimeters a second (50 m/s) It says to Find M and also solve the formula for M. Please help!

**Stuck on 3d - Math**

Suppose you’re thinking about buying a used car, but you’ve become worried about the selection problems. In this market, the seller of each car knows the true value, but the buyer can’t determine the value until after purchase. Assume that there are 6 sellers ...

**3rd grade math**

1=+0

**Standard and scientific notation**

7.8*1o ^5 in standard notation

**math**

find the number of permutations of 5 out of 9. then find 6 out of 6

**Physics**

Horizontal components of the forces are as follows: T(sin Θ) = ma --- Equation 1 and the vertical components of the forces are T(cos Θ) = mg --- Equation 2 where T = tension in the string Θ = angle that string makes with the vertical m = mass of the object a = ...

**Math**

How do you round these numbers to the nearest tenth 84,96,71