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Andres
Questions (65)
How long has the thermal power plant been in the locality?
Have people suffered respiratory problems because of the polluted air
1 answer
123 views
En el movimiento circular uniforme la fuerza centripeta que se ejerce sobre el cuerpo que gira esta dada por la formula F=M2/r.
1 answer
123 views
El volumen V de un cilindro se obtiene con V=πr2h. Despejen h
1 answer
200 views
You and a friend begin hiking a 27-mile trail at noon. You hike 6 miles in 2 Hours. Continuing at this rate, how long will it
1 answer
186 views
A circus performer is riding a unicycle in a circle. He is riding 3 meters per second. He can go 4 times around the circle in 2
1 answer
135 views
On a Saturday, Sam and Ellen agree to leave their homes at the same time, drive toward each other, and have lunch when they
1 answer
194 views
Two cyclists start at the same place. The first travels East at 22 mile per hour. The second travels west. They are 24 miles
1 answer
173 views
Cheryl biked two days in a row. On the first day, Cheryl biked 8 miles at a steady pace for 20 minutes. On the second day, she
1 answer
180 views
One lap of a high-speed automobile race is 2.60 miles. A driver completes 35 laps traveling at 182 miles per hour. How long does
1 answer
160 views
A delivery truck drove 46 miles per hour. It took 2 hours to travel between two towns. What is the distance between the two
1 answer
144 views
Does a reaction occur when aqueous solutions of chromium(II) sulfate and potassium hydroxide are combined?
1 answer
1,555 views
The cost of cabin lodging is $25 per lodger. The equation y = 25x relates the total lodging cost (y) to the number of lodgers
2 answers
763 views
I need to make an acrostic poem for the word ECOSYSTEM and each letter has to be a phrase. I need help.
13 answers
5,566 views
A house worth $350,000 when purchased was worth $335.000 after the first year and $320,000 after the second year. If the economy
7 answers
4,170 views
A 56-kg student runs at 4.2 m/s , grabs a hanging 10.0-m-long rope, and swings out over a lake (Figure 1) . He releases the rope
1 answer
4,326 views
Hello, I need to use matrices in order to solve this problem but I am having a hard time getting started with the problem. I
0 answers
820 views
Hello, I need to use a matrix to solve this but am stumped on how to do it. All I need is a little nudge to push me in the right
0 answers
634 views
what reforms did Britain make to improve the workers lives
0 answers
465 views
Pam has a mass of 35.5 kg and she is at rest on smooth, level, frictionless ice. Pam straps on a rocket pack. The rocket
1 answer
727 views
Consider two masses m1 and m2, connected by a spring of spring constant k and an uncompressed length L. The masses are on a
0 answers
591 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
556 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
514 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
529 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
531 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
596 views
A concentration cell is built based on the following half reaction:
Zn(2+) + 2e(-) > Zn E(o)=-0.761 Using two pieces of zinc of
0 answers
542 views
Consider a cell at 299K:
line notation Fe-Fe2+(1.39)--Cd2+(2.35)-Cd Given the overall standard reduction potential of the cell is
0 answers
693 views
Consider a cell at 255 K:
line notation Pb-Pb2+(1.27M)--Fe3+(2.29M)-Fe Given the standard reduction potentials calculate the cell
0 answers
599 views
Heather and Matthew walk eastward with a
speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they
0 answers
734 views
Heather and Matthew walk eastward with a
speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they
2 answers
696 views
Heather and Matthew walk eastward with a
speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they
0 answers
664 views
6x-3y = -6 and -5x + 7y = 41
I got stuck on this problem and my answers are outrageous so please help?
1 answer
525 views
6x-3y = -6 and -5x + 7y = 41
0 answers
612 views
The graphs of f(x) = x^3 and g(x) = 3X+5 have one intersection point. Determine the x-value for this intersection point using
3 answers
674 views
If an atom gains energy, is it in a more stable or unstable state?
1 answer
2,892 views
You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M
1 answer
493 views
You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M
1 answer
995 views
You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M
1 answer
496 views
4.0 L of hydrogen gas reacts with 2.0 L of nitrogen gas (at the same temperature and pressure), producing ammonia gas, NH3. Find
1 answer
651 views
Calculate the sodium ion concentration when 50.0 mL of 2.0 M Na2CO3 is added to
100.0 mL of 3.0 M NaHCO3
1 answer
705 views
A farmer wishes to enclose a rectangular pen with area 100 square feet next to a road. The fence along the road is to be
3 answers
838 views
A farmer wishes to enclose a rectangular pen with area 100 square feet next to a road. The fence along the road is to be
0 answers
562 views
A farmer wishes to enclose a rectangular pen with area 100 square feet next to a road. The fence along the road is to be
3 answers
1,072 views
Determine the x-value for each inflection point on the graph of the following function.
f(x)=3x^5-5x^4-80x^3+360x^2+1000x+850
0 answers
408 views
Determine the x-value for each inflection point on the graph of the following function.
f(x)=3x^5-5x^4-80x^3+360x^2+1000x+850
1 answer
416 views
Determine the x-value for each inflection point on the graph of the following function.
f(x)=3x^5-5x^4-80x^3+360x^2+1000x+850
3 answers
479 views
Suppose Y1 is a function of x which dy1/dx=3y1. Suppose y2 is a function of x which dy2/dx=8x+5. If the graphs of y1 and y2 have
1 answer
518 views
an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s.
0 answers
589 views
an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s.
2 answers
2,059 views
an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s.
0 answers
710 views
How many oxygen atoms are in 6.70 g of Al2(SO4)3? Express your answer using scientific notation with two decimal places.
2 answers
1,035 views
How many oxygen atoms are in 6.70 g of Al2(SO4)3? Express your answer using scientific notation with two decimal places.
1 answer
542 views
How many oxygen atoms are in 6.70 g of Al2(SO4)3? Express your answer using scientific notation with two decimal places.
1 answer
584 views
How many oxygen atoms are in 6.70 g of Al2(SO4)3? Express your answer using scientific notation with two decimal places.
2 answers
564 views
determine real numbers a and b so that the expression 8sin^2(theta) + 2cos^2(theta) can be rewritten as asin^2(theta) + b
I just
4 answers
724 views
determine real numbers a and b so that the expression 8sin^2(theta) + 2cos^2(theta) can be rewritten as (a)sin^2(theta) + b?
If
1 answer
785 views
An example of ______________ would be if you argue that most behaviors are a product of your environment and your friend argues
2 answers
893 views
A picture hangs motionless on a wall as shown in the Figure. If the picture has a mass of 5.0 kg, what are the tension forces in
1 answer
1,392 views
A rock is tossed straight up with a velocity of 34.0 m/s. When it returns, it falls into a hole 17.3 m deep. What is the rock's
1 answer
721 views
Larry leaves home at 1:01 and runs at a constant speed to the lamppost. He reaches the lamppost at 1:10, immediately turns, and
1 answer
674 views
A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an
1 answer
647 views
A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an
1 answer
631 views
what is congruent?
1 answer
389 views
4Xsquared+7x+3 find the quadratic equation by factoring to solve.
Show work
1 answer
570 views
) In an experiment, a pair of dice is rolled and the total number of points observed.
(a) List the elements of the sample space
0 answers
757 views
