02/12/18

at what height above the earths surface will a rocket have half the force of gravitation on it that it would have at sea level
express answer in earth radii
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02/12/18

What does Isaiah call Cyrus? Why is that significant?
This is for my World Civilizations class and I am needing help knowing how to answer. "Read Ezra 1:1-8. Cyrus the Great allows the Jewish captives from the Babylonian captivity to go back to... more
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02/12/18

solve this equation 3x +4x+5
i dont know how to do this
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02/12/18

Radical Expressions and Functions
In the pendulum formula T = 2 (pi) sqrt (L/g), we use g = 9.8 m/s^2 for the acceleration due to gravity on Earth. But what about Mars? If an astronaut on the surface of mars swings a 1-meter long... more
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02/11/18

i am getting big difference between answers by gauss seidal and gauss jacobi
Linear equations are below-- X+2y-2z=1 X+y+z=3 2X+2y+z=5
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02/11/18

calculus question
Find the doubling time for a city whose population is growing by 17% per year.
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02/11/18

Enter the expression that is equivalent to -1/2 (6x-10)
I am confused on how to solve this question.
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02/11/18

What changes when moving downwards from fluorine to chlorine on the periodic table
 Use periodic table!
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02/11/18

What is ∫-7^-1 f(x)dx?
suppose that f(x) is an even function and let ∫0^1 f(x)dx = 5 and ∫0^7 f(x)dx = 1. What is ∫-7^-1 f(x)dx?   This is my work   I expand ∫-7^-1 f(x)dx to F(-1) - F(-7)   F(-1) - F(-7) is the... more
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02/11/18

convert radians to degree measures
convert 7pie radians to degree measures              4
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02/11/18

Given f(x) = x2 + 3x + 9, find the following. a. f(0) (b). f(1) (c). f(−1) (d). f(−3) (e) .f(a) (f).f(x + h)
Given f(x) = x2 + 3x + 9, find the following.(a) f(0) (b) f(1) (c) f(−1) (d) f(−3) (e) f(a) (f) f(x + h)
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02/10/18

physics magnetism
An electron travels at a constant speed of 3.40 × 106 m/s towards the left of this page. It then enters a uniform magnetic field and experiences a maximum force of 4.65 × 10-8 N that points towards... more
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02/10/18

the moon travels in a nearly circular path around earth. if somehow gravitation between earth and moon disappeared, how would the moon's path differ?
what will happen to the moon and earth id there was no gravitation  
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02/10/18

Finding the speed of an object
A certain horse can maintain 1.0 hp of output for 2.4 hours with an efficiency of 72%. The horse is pulling a 220 kg object along a horizontal ground. The coefficient of kinetic friction between... more
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02/10/18

Fuel is burnt at a rate dV/dt=100e^0.04t where V is the volume of the fuel is litres, and t is measured in hours.
(i) At what rate is fuel burning when t = 4 hours? Ans = ___ L/h (ii) How much fuel is burnt during the first week? Ans = ___ L/h
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02/10/18

A ray o light is incident normally on a plain mirror .where will be this ray of light go after reflection from the mirror
Its physics question from class 8 lakhmir sing book
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02/10/18

my professor says that the decimal for $400 is .222 but I can't figure out how he got that answer
My professor says that the decimal for $400 is .222 but I can't see how he came up with that answer. Can you explain it to me?  
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02/09/18

Significant figures
4650.00g is equivalent to?  This number has 6 significant figures  my responses options are :  465,000. mg  or  4.65000 kg  i think the last one is the correct answer. I am right?    Thank... more
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02/09/18

a steady population decline of 2.25% per year for the past decade. 16100 residents 2011the trend continues, the pop be in the year 2031?
A town in the mid west has been experiencing a steady population decline of 2.25 % per year for the past decade. If there were 16100 residents in the year 2011 and the trend continues, what will... more
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02/09/18

In gym class a student kicks a soccer ball high into the air as the ball goes upward which type of energy is increasing
I want the answers
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02/08/18

30% of what number is 9
30%of what number is 9
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02/08/18

When a number is decreased by 30% of​ itself, the result is 14. Whats the number?
When a number is decreased by 30% of itself, the result is 14. Whats the number? how can i solve this?
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02/08/18

can you help me with math please.
Find an equation of the line that satisfies the given conditions.Through  (1/2, − 2/7) ; perpendicular to the line 6x − 12y = 1
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02/08/18

how to determine the ratio between two different masses
A planet has masses ( m1) and has at a distance ( r1), from the sun. a second planet has mass(m2) equal to (m1) at a distance of r2=2r from the sun . Determine the ratio of the gravitational force... more
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02/08/18

An object falls 16t^2 feet in t seconds. You drop a rock from a bridge that is 75 feet above the water. Will the rock hit the water in 2 seconds? Explain
An object falls 16t^2 feet in t seconds. You drop a rock from a bridge that is 75 feet above the water. Will the rock hit the water in two seconds?
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