Thursday

July 31, 2014

July 31, 2014

Total # Posts: 44

**chemistry**

What is the number of moles present in 2.1 x 10²⁴ atoms of C?

**Math**

Allie's plant has a height of 6 meters. Rajon's plant grows 3/10 meters higher. How high does Rajon's plant grow?

**physics**

I need to know how to do them first.

**physics**

A cannonball is shot (from ground level) with an initial horizontal velocity of 38.0 m/s and an initial vertical velocity of 26.0 m/s. 1) What is the initial speed of the cannonball? 2) What is the initial angle θ of the cannonball with respect to the ground? 3) What is ...

**math**

marita orders 12 yards of material to make banners. If she needs 1 foot of fabric for each banner, how many banners can she make?

**Chemistry**

A quantity of 100 mL of .5M of HCl (aq) is mixed with 100 mL of .5M of NaOH (aq) in a constant pressure calorimeter. The initial temperature of the solutions is 22.30 C and the final temperature of the mixed solution is 25.00 C. What is "q" for solution and "q&q...

**Chemistry**

Calculate the grams of KHP needed to react with 25.2 ml of 0.10M KOH if the reaction is? KOH+KHP -----> K2P + H2O

**math**

2y+6,3y and y-4 are all integers and y-4 is the median of these intergers which of the following could not be value of y?

**Biology**

All organisms in group 2(birds, fish, mammals, echinoderms, amphibians) except _______ are thought to share a common ancestor that possessed many of the same characterisitcs as the modern lancelets. A)echinoderms B)fish C)amphibians D)birds E)mammals

**Biology**

Excluding the echinoderms, all the animals in group 2 (birds, mammals, fish, amphibians) have which of the following characteristics in common? A)protostome embryo, coelom, radial symmetry, dorsal nerve cord B)protostome embryo, no coelm, bilateral, ventral nerve cord C)deuter...

**Chemistry**

The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide: CS2(g)+3O2(g)--->CO2(g)+2SO2(g) The combustion of 17.2 g of CS2 in the presence of excess oxygen yields __________ g of SO2.

**Chemistry**

The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide: CS2(g)+3O2(g)--->CO2(g)+2SO2(g) The combustion of 17.2 g of CS2 in the presence of excess oxygen yields __________ g of SO2.

**geometry**

what is the formula to find a slope on a graph?

**math**

1-log5=1/3(log1/2+log x+1/3log5)

**social studies**

who created the mauryan empire

**math**

is 5 over 8 greater or lesser than 6 over 8

**6th grade**

i need a picture with all the contents

**math**

What is the distance between 7 over 10 and 3 over 5

**College**

Thanks for your help and knowledge. It is much appreciated. I was able to locate some great websites with extensive information. A great start to my report. Thanks agaain.

**College**

Thanks for your help and knowledge. It is much appreciated.

**College**

How did imperalism and industrialization lead to World War1? and was it worth it. Term paper due, need to be pointed in right direction.

**algebra**

The boys were 1/ 4 of the way across the bridge when they heard the sound of a train whistle. The train coming from behind them was moving at a speed of 45 mph. The boys immediately thought that they could turn around and run towards the near end of the bridge, and get to the ...

**algebra**

Write a generalization for all whole number that cannot be written as the difference of 2 squares. (I want to see steps and answer for this)

**social studies**

what were the official and unofficial purpose of the Alien&Sedition Acts?

**social studies**

where were the first political parties formed?

**social studies**

how did sedition differed from treason?

**math(algebra)**

What's function to represent the set of all points equidistant from the point (-2,3) and the line y=7?

**math(algebra)**

Find a function to represent the set of all points equidistant from the point(-2,3) and the line y=7.

**Physics**

A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.34 105 Pa and the speed is 0.038 m/s. What is the pressure at the narrow end of the segment?

**Physics**

A 1500 kg car moving east at 15 m/s collides with a 1730 kg car moving south at 15 m/s and the two cars stick together. What is the velocity of the cars right after the collision? How much kinetic energy was converted to another form during the collision?

**Physics**

Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 = 17 kg and...

**Physics**

Jane is sitting on a chair with her lower leg at a 30.0° angle with respect to the vertical, as shown. You need to develop a computer model of her leg to assist in some medical research. If you assume that her leg can be modeled as two uniform cylinders, one with mass M1 =...

**Physics**

What velocity does the other glider have?

**Physics**

Two identical gliders on an air track are held together by a piece of string, compressing a spring between the gliders. While they are moving to the right at a common speed of 0.52 m/s, someone holds a match under the string and burns it, letting the spring force the gliders a...

**Physics**

A cannon on a railroad car is facing in a direction parallel to the tracks. It fires a 99 kg shell at a speed of 105 m/s (relative to the ground) at an angle of 60.0° above the horizontal. If the cannon plus car have a mass of 5.5 104 kg, what is the recoil speed of the ca...

**Photography**

balloons, streamers, toys, bows, a cake

**Physics**

A 0.15 kg baseball is pitched with a speed of 35 m/s (77 mph). When the ball hits the catcher's glove, the glove moves back by 2.7 cm (1.08 in.) as it stops the ball. Assuming a constant acceleration of the ball, what was the average force applied by the catcher's glove?

**Insulin Levels/Appetite**

I am pretty sur it is b

**Physics**

A 3.9 kg body is initially moving northward at 15 m/s. Then a force of 13 N, toward the east, acts on it for a time of 3.8 s. At the end of that time, what is the body's final velocity? (magnitude and direction)

**Physics**

A wheel's uniform angular acceleration is constant. Initially its angular velocity is zero. During the first 1.0 s time interval, it rotates through an angle of 92.0°. -Through what angle does it rotate during the next 1.0 s time interval? -Through what angle during th...

**Physics**

A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 140 m, at what frequency must it rotate so that it simulates Earth's gravity?

**Physics**

What is the average linear speed of Mercury about the Sun? (The distance from the Sun to Mercury is 5.80 1010 meters. The orbital period around the Sun is 88 days.)

**Physics**

A 31.8 kg child swings on a rope with a length of 6.12 m that is hanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?

**Phyisics**

I am workin on this one too, let me know if you get it.

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