03/08/18

How the 2m height affect with this one
The ball is thrown from a height of 2m at an initial speed of 15m/s and the starting direction forms a 35 degree angle.a) what is the ball flight time when it hits the ground?b) maximum height?c)... more
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03/08/18

Any help is welcome
The lift moves down at a speed of 3.0 m/s and brakes evenly so that the elevator stops 2 seconds after the braking. The mass of the lift is 850kg. How much force the elevator's rope affect the... more
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03/08/18

if the height of the tree is 12.2 meters and the angle made by the pole and the ground is 40 degrees, what is the lengt
a bamboo pole is leaning against a tree. if the height of the tree is 12.2 meters and the angle made by the pole and the ground is 40 degrees, what is the length of the pole ?  please answer with... more
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03/07/18

how do I find the maximum height for a quadratic application?
fireworks were shot up on top of a 100 foot hill their initial speed was 120 feet per second the function f(t)= -16t*2nd power + 120t + 100
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03/07/18

a ball was thrown straught upward and function f(x)= -16t(to the second power) + 64t represents its height. the point of release was very close to the ground
after how many seconds did it fall to the ground?
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03/07/18

the sum of 2 times a number X and -2 is at least 8
the sum of 2 times a number X and -2 is at least 8
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03/07/18

A 300 mL balloon containing the gases CO and CH4 has a total pressure of 450mm Hg. The partial pressure of CO is 140mm HG. What is the mole fraction of each gas
Chemistry problem 
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03/07/18

You shake a bottle of soda and take off the cap. If the soda shoots out of the bottle with a velocity of 12 m/s, how high will it go?
this is a physics question I can not understand it 
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03/07/18

1.5x10^7 divided by 5x10^6
I really need help with this
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03/07/18

Physics Math
An ordinary workshop grindstone has a radius of 7.50 cm and rotates at 7500 rev/min. A.) Calculate the magnitude of the centripetal acceleration at its edge in meters per second squared and convert... more
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03/07/18

a chicken crosses a 7.50m wide road with a constant speed of 0.367m/s. How much time does it take to cross.
No description 
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03/07/18

What is the final temperature, (in degree Celsius)
after a 29.0 gram piece of ice at 0 degree Celsius is placed into a styrofoam cup with 119.0 grams of water initially at 74.5 degree Celsius? Assume no loss or gain of heat from the surroundings.... more
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03/07/18

The area of a circle is 19.625 square meters. What is the circumference of the circle? (Use 3.14 for ?.)
 what is the circumference
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03/07/18

What is the area of a basketball court when it's width is 28 meters and it's length is 15 meters
The basketball court that Abigail's team plays on has a width of 28 meters and a length of 15 meters. What is the area of the basketball court?  
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03/07/18

Assume you drop a bag of snacks inside an airplane that is flying due west at 800 km/h. Which of the following is true?, (check the description)
I had this question in a quiz (MCQ). The choices were: A) the bag moves southwest at speed greater than 800km per   B) the bag will fall straight down (south)     Actually there are two more... more
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03/07/18

Two numbers add to 475. The first is 39 less than the second. What are the numbers?
Help me please
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03/06/18

Twice the sum of -4 and a number is the same as the number decreased by 1/2
Twice the sum of -4 and a number is the same as the number decreased by 1/2
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03/06/18

Please explain where in the loop the rider in a roller coaster would expect it to have the largest velocity.
I think it would be the moment after the roller coaster being at the top of the loop (upside down) as it has the most potential energy but I'm not really sure.
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03/06/18

if energy is conserved, why does a marble rolling eventually stop when it hits a cup?
I think this contrasts conservation of energy. 
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03/06/18

How do you write an equation with just the vertex (-1,4) and the y-intercept (0,3)?
I need help on this math question. I do not understand what to do with the y-int. Some assistance would be helpful, thank you!
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03/06/18

what is the slope of the line whose equation is x=1
what is this problem
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03/06/18

Ted did one-third of the homework on Wednesday. He did half of the remaining homework on Thursday. How much of the homework he did on Thursday?
 WORD PROBLEM!!!!!!!!1
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03/06/18

Find the equation of tangent
Y=x2-4x+2=0
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03/06/18

Ratio of walkers, population is 1 to 18. Netherlands is 18% and United States s 9%
Netherlands walking 18%, United States 9%. The ratio of the population to the Netherland to United States is 1 to 18. What is the ratio of the number of walkers in the two countries?  Justify your... more
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03/06/18

what is the y intercept y=-3x-4
what is the y intercept for all of the questions 
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