Monday

May 2, 2016
Total # Posts: 31

**Physics **

Microwaves travel at the speed of light, 3.00 × 108 m/s. When the frequency of microwaves is 5.93× 109 Hz, what is their wavelength? Answer in units of m.
*April 28, 2015*

**physics**

A baseball is hit and moves initially at an angle of 35.0 to the horizontal ground with a velocity of 25.0 m/s. (a) What are the vertical and horizontal components of the initial velocity? (b) How long will the ball be in the air? (c) What is the range?
*January 29, 2015*

**physics**

You fire a cannon ball from ground level at a speed of 20.0 m/s ∠30.0 Find the time taken for the ball to hit the earth. How far will it land?
*January 29, 2015*

**physics**

A ball rolls off a 1.40 m high table with an initial horizontal speed of 0.600 m/s. How far will it land?
*January 29, 2015*

**Math**

The water level (y) in a tank oscillates between 4 feet and 10 feet. It takes 20 seconds for the water level to go from 4 feet to 10 feet and seconds to go from 10 feet to 4 feet. At time(t)=0 seconds, the water level (y) is 10 feet. 1. Write the equation for the depth in the ...
*July 30, 2014*

**Chemistry**

What is the chemical reaction between these chemicals? NH4Cl + Na2SO3 NH4Cl + NaOH Na2SO3 + BaCl2 Na2SO3 + NaOH H2SO4 + BaCl2 BaCl2 + NaOH
*April 25, 2014*

**Science**

yeah, people are so annoying sometimes
*October 15, 2013*

**AP chemistry**

1.
*September 22, 2012*

**Math**

Find the sum of the absolute values of all integral values of X that make the following expression prime: (x^2-5x)^2 - 34
*January 30, 2012*

**Math**

Consider the regression through the origin model y = bx Assume that there are n pairs of observations of the response and the explanatory variables, and that these observations are indexed by i. Derive the least-squares estimator for the slope parameter b in this model.
*October 13, 2010*

**Math **

Consider the regression through the origin model y = bx Assume that there are n pairs of observations of the response and the explanatory variables, and that these observations are indexed by i. Derive the least-squares estimator for the slope parameter b in this model.
*October 12, 2010*

**Science - biology - university**

A couple where both the man and woman are albino decided to have children. Remember that albinism is inherited as a rare autosomal recessive trait. To their surprise their first child had normal skin pigmentation. They eventually have two more children and they also have ...
*September 27, 2010*

**Science**

Thank you very much, I dont remember learning it like this but this certainly does help alot and this makes it easier to understand. Once again, thank you
*September 24, 2010*

**Science**

My original question: In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)? PsyDAG replied: Since 4 of the 8 are paternal, 4/8 * 3/7...
*September 24, 2010*

**Science**

can you please explain how you got those numbers.
*September 23, 2010*

**Science**

In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)?
*September 23, 2010*

**Science**

for number two you gave to calculate the probability of only 3 male offsprings being born and the probability of at least one being black.
*September 22, 2010*

**Science**

Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. ...
*September 22, 2010*

**Science**

A light year is the distance it takes a beam of light to travel in a year. The speed of light is 2.99 x 10^8 m/s. Distance from sun to Earth: 150 000 000 Km *remember to change km to m use equation: t=d/v t=150 000 000 000m/2.99 x 10^8 m/s t=501sec = 8.35 min **I rounded the ...
*September 21, 2010*

**biology - Genetic probability**

Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. ...
*September 21, 2010*

**science**

1) A - b/c that is like saying, is an arm an organism. 2) B - we are come composed of cells with a 'true' nucleus 3)B - Organisms under the kingdom Prokaryotes do not have a 'true' nucleus, that is to say that there is no nucleus 4)C - Photosynthesis makes ...
*September 21, 2010*

**physics**

A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway and 4.0 s later, its instantaneous velocity is 16 m/s, 45o north of west. What is the magnitude of the average acceleration of the car during the five-second interval?
*July 17, 2010*

**Physics-PLEASE HELP, it's due soon**

Hey, I know it's due this tuesday.. If you have other 4 answers then please get back to me at whoismoh at gmail dot com I have this answer.. This way we can share the answers.. Let me know Thanks
*April 3, 2010*

**Math**

For which real values of x do the following vectors form a linearly dependent set in R3? v1= (x, -1/9, -1/9) v2= (-1/9, x, -1/9) v3= (-1/9, -1/9, x)
*November 27, 2009*

**physics**

In the problem, the mass isn't known though, you know that the one car is identical to the other though. i end up getting, 90km/h=M1*V What do I do after that?
*November 17, 2009*

**physics**

Thank you that was bothering me for so long.
*November 17, 2009*

**physics**

The question is: two identical cars hit each other and lock bumpers. If a car moving with a speed of 90km/h appraoches a stationary car, what is the speed immediately after coupling cars.
*November 17, 2009*

**physics**

Hi, i really need help with this question. Two identical cars hit each other and lock bumpers. A car moving with a speed of 90 km/h approaches a stationary car
*November 17, 2009*

**religion**

thanks for the last answer it helped me great would the same site helple to know what he did in Jericho
*April 20, 2009*

**religion**

what happened to jesus in cana
*April 20, 2009*

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