# Posts by mateo

Total # Posts: 37

**math**

Me too

**Physics**

A ball is thrown upwards with an initial velocity of 70 m/s 1. What is the velocity after 3 seconds? 2. What is the acceleration at the top of its path? 3. How many seconds does it take the ball to go up? 4. How many seconds does it take to hit the ground? 5. How high does the...

**Math**

Ya

**math**

The first answer is 1 and 1/2 so you divide 3/2*2/1=1 1/2

**Math**

bills' trail mix has 6 cups of walnuts and 10 cups of cranberries. using the same recipe, how many cups of walnuts go with 15 cups of cranberries

**math**

What is mental math?

**math**

How can you order 3 fractions by using a number line?

**math**

One batch of fruit salad has equal amounts of which kinds of fruit?Explain how you decided.

**math**

How can you order 3 fractions by using a number line?

**social studies**

How many regions does the United States have?

**math**

Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizz.marty ate more pizza than luis.how is that possible?

**math**

Why is 1/8 greater than 1/10 but less than 1/3?

**unkown**

How many people have 91% of vitiamans?

**math**

28 kids were waiting at a bus stop.19 kids went to play.How many kids are waiting at the bus stop?

**fractions**

Eric and frank want to share 1and 1/3 feet of rope . What length of rope should each friend get?

**Math**

Sally bought a sweater for $46.75 that originally cost $85.00. What was the percent of decrease from the original to the sale price?

**3rd grade math**

7/10 is greater

**algebra**

I think the green creatures had about 12 and for the amount of blue creatures is 32 and the exception of the leader of the aliens which states that it had 3 heads and 4 feet to complete the solution of this problem.

**physics**

What is the wavelength of the peak of the blackbody radiation curve for the human body (T = 310 K)?

**physics**

The wavelength of an electromagnetic wave is measured to be 600 m. What is the frequency of the wave?

**Physics**

The generator at a power plant produces AC at 24,000 V. A transformer steps this up to 345,000 V for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?

**physics**

What is the frequency of the EM wave emitted most strongly by a glowing element on a stove with temperature 1,500 K

**Chemistry**

What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water bottle? HCl(aq)+NaHCO3(aq)=>NaCl(aq)+CO2(g)+H2O(l)

**chemistry**

Thanks Dr.Bob!

**Math**

THE LOAN ARRANGER

**science**

need a science project for 7th grade using toy train.

**space**

what is the day and nigh time temp. on jupiter

**space**

thanks -i know that its not an exast answer did a hole project on it... but the teacher asked so an estimated answer is all i need... as i said thanks any way ...

**space**

gowing 10,00 miles per hour how long will it take to get to jupiter from earth with earth the sun and jupiter alined like a straight line or just an estimation

**space**

yes i know ... say at opposie sides of the sun.

**space**

traveling 10,000 miles per hour how long will it take to get to jupiter from earth

**math**

two trains leave at the same time from stations 284 miles apart, traveling toward each other at 33mph and 38 mph respectively. how long will it take them to meet?

**physics**

Acceleration is Delta V, over Delta T which equals V2-V1, over Delta T Delta referring to the change in velocity and change in time

**physics**

R1 and R2 are both the radius of the circles at the bottom and top respectively. I don't know the answer, I'm looking into that as well. At least you know that it's a radius now! :D

**3rd grade math**

You can say a yard is 3 ft and you say it like 3 times table

**math**

8 ducks and 4 cows D + C = 12 8 + 4 = 12 2 D + 4 C = 32 2(8)+ 4(4)= 32 16 + 16 = 32 32 = 32

**math**

Might be subtraction.so I don't know this.

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