# Posts by Roberto

Total # Posts: 40

**Science**

A reaction has a standard free-energy change of –11.70 kJ mol–1 (–2.796 kcal mol–1). Calculate the equilibrium constant for the reaction at 25 °C. Im so lost please help

**Family Development**

What is the difference between a high-impact problem and a low-impact problem?

**family development**

I need help with this question: What significance does Maslow's hierarchy of needs have in developing a more positive self-concept?

**Culinary arts**

What is the type of meat eaten frequently, particularly in the coastal region of China?

**culinary arts**

what is the answer if you buy 2 lbs of squash and the squash costs $2.05 a pound?

**culinary arts**

what is the answer if 1/2 lbs of mushrooms cost $4.89 a pound?

**physics**

A watermelon falls off of a balcony 14 meters high. How fast is it moving immediately before it reaches the ground? a increases with time b is 0 m/s c remains constant d decreases with time

**physics**

A cat slides off the table. Immediately before the cat leaves the table,what is the vertical velocity?

**math**

Sarah's parents are filling their swimming pool. She wants to know how long it will take. What unit is best used to give the rate of the water flowing into the pool? Her pool is 22,000 gallons. What unit will the answer to her question be answered in?

**math**

I need an expression written for the following logs using "sum, difference, or multiple of logarithms." a) log[base(2)] ((x^2) - 9)/(x^3))^3 b) log[base(a)]5a^4 Hopefully they are clearly written. thanks. -roberto

**Math**

Indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5).

**math**

1,076,805

**english**

1. What roles do the adults or older figures play in the lives of the various narrators? Select a figure from each of the four memoirs and write one sentence answering the question for each memoir.

**Phoenix**

Which of the following groups would be considered an internal audience for a company?

**Physics**

A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this satellite be placed? ...

**Physics**

A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this satellite be placed?

**Physics**

But to solve this equation won't I need the distance of the moon from the satllite?

**Physics**

A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this satellite be placed?

**Physics**

The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the mass of the Sun...

**Physics**

The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the mass of the Sun ...

**Physics**

The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the mass of the Sun ...

**Spanish**

to make a mess Hacer un desastre made a mess Hecho un batido or Hecho un desastre

**Physics Urgent!!**

I think I was doing it backwards... will the answers be 0.53 for w(m)/w(e) and 0.98 for w(my)/w(ey)???

**Physics Urgent!!**

I got 1.88 and 1.03 but they are not the answers....

**Physics Urgent!!**

A day on Mars is 24.6 Earth hours long. A year on Mars is 687 Earth days long. How do the angular velocities of Mars’ rotation and orbit compare to the angular velocities of Earth’s rotation and orbit? w(M)/w(E)= and w(My)/w(Ey)= w is what I used to represent omega...

**Physics...help please!**

A body of mass m moves in the +x direction, subject only to drag force: Fx= (-1/2)(CD*rhoair*S*vx^2) With drag coefficient CD, air density rho air, cross sectional area S, and velocity component vx. At time t=0 the body is at postion x=0 and has velocity of vx=v0 where v0 is ...

**Physics...help please!**

A body of mass m moves in the +x direction, subject only to drag force: Fx= (-1/2)(CD*rhoair*S*vx^2) With drag coefficient CD, air density rho air, cross sectional area S, and velocity component vx. At time t=0 the body is at postion x=0 and has velocity of vx=v0 where v0 is ...

**Physics-Please check**

If I had the old-fashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 m away, how far does the film need to be from the lens to record a clear image? I know that the equation is 1/f = 1/d(object) + 1/d(image) so would I do the following: 1/...

**Physics-Correction-Please check my explanation so far**

It should read 6m not 6 feet as the distance of the object Thank you

**Physics-Please check my explanation so far**

If I had the old-fashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 feet away, how far does the film need to be from the lens to record a clear image? I know that the equation is 1/f = 1/d(object) + 1/d(image) so would I do the following...

**Physics**

If I had the old-fashion camera that had a focal length of 35mm(0.035m) and I take a picture of a person 6 feet away, how far does the film need to be from the lens to record a clear image? Please help-if you could just suggest an equation-that would be helpful

**Physics**

You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses are protected by...

**Physics**

You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses are protected by...

**Physics**

You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses are protected by...

**Physics**

You are an artillery offcer attached to Gaius Julius Caesar's Xth Legion in the Gallic War (1st C. BCE). You are responsible for a catapult, a device with a long spoonlike arm used to lob stones or pumpkins over the walls of Gallic oppida. These fortresses are protected by...

**math**

what is the sum of the 1st 10 terms of the arithmetic series that has a 10th term of 50 and a 1st term of 5

**SLU**

FIFO 75 x $17 = $1,275 450 x $19 = $8,550 200 x $23 = $4,600 43 x $29 = $1,247 Total cost of goods sold $15,672 Ending inventory $1,653 [$17,325 - 15,672] LIFO 93 x $29 = $2,697 200 x $23 = $4,600 481 x $19 = $9,139 25 x $17 = $425 Total cost of goods sold $16,861 Ending ...

**geometry**

How do you use the distance formula to see if the segments on a cordinte plane are congruent?

**Math**

Jack usually mows his lawn in three hours. Marilyn can mow the same yard in 5 hours. How much time would it take for them to mow the lawn together?

**Poem: Annabel Lee by Edgar Allen Poe**

what word would you use to describe the overall tone in Poe's "Annabel Lee"