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Questions (23)
A film of gasoline (n=1.40) floats on water (n=1.33). Normally incident blue light of a wavelength 480 nm, appears bright blue
2 answers
483 views
A film of gasoline (n=1.40) floats on water (n=1.33). Normally incident blue light of a wavelength 480 nm, appears bright blue
0 answers
510 views
A system exhibits simple harmonic motion with a frequency of 0.85 cycles per second. Calculate the acceleration experienced by
1 answer
766 views
Two spacecratfs from different nations have linked in space and are coasting with their engines off, heading directly toward
1 answer
520 views
A manufacturer is designing a two part firecracker with a total mass of 1.0 kg. The firecracker will launch at a speed of 25
1 answer
479 views
3. Human cannonballs have been a part of circuses for years. A human cannonball with a mass of 70 kg experiences an impulse of
5 answers
670 views
A volleyball player serves a ball, giving it an initial velocity of 8.5 m/s [32 up] at an initial height of 1.4 m above the
6 answers
1,614 views
A young boy is pulling his wooden toboggan up a 30 slope. If the toboggan is moving at a constant speed on the dry snow of
0 answers
415 views
1. A skateboarder coasts at a constant velocity toward a ramp with a 15 angle, preparing for the big trick jump. If the
1 answer
592 views
Two electrical voltages have a total of 126 volts. If one voltage is 32 more than the other, find the voltages.
Started off with
2 answers
609 views
A survey asked 2000 people whether or not they frequently exceed the speed limit. The collected data is summarized in the
1 answer
643 views
An ESP experiment is done in which a participant guesses which of 8 cards the researcher has randomly picked, where each card is
1 answer
745 views
When is it appropriate to draw a causal connection between two measurement variables? In other words, what conditions must be
1 answer
958 views
A survey was taken in various Statistics classes and the following regression equation was obtained regarding the height and
1 answer
694 views
Order the following correlations from strongest to weakest.
0.05 0.32 -0.46 0.87 -0.10 my answer -- ??? -0.46, -0.10, 0.87, 0.32,
1 answer
666 views
Suppose that 50% of people frequently exceed the speed limit. A random sample of 2000 people is surveyed and 55% indicate that
2 answers
551 views
The graph of f(x)=x^3-3x^2-24x+1 is concave up when x<-2, x<4, x>-6, or x>1?
1 answer
445 views
The graph of f(x)=x^3-3x^2-24x+1 is concave up when x<-2, x<4, x>-6, or x>1?
1 answer
396 views
If the price at which x units can be sold is given by the equation p=15-4 ln x, approximate the marginal revenue when x=7.
1 answer
710 views
The graph of f(x)=x^3-3x^2-24x+1 is concave up when?
1 answer
441 views
After x weeks of prcatice, a student can type f(x)=80(1-e^-0.3x)words a minute. How sooon will the student be able to type 60
3 answers
549 views
An investment grows ar a rate of 2.5% each year compounded continuously. Approximately how long will it take the investment to
1 answer
697 views
A decription of the central themes and stratigies ofpositive Psychology
1 answer
543 views
Answers (11)
so which formula should i use?
correction it is 1.9 x 10^4 kg , 1.7 x 10^4 kg, 3.5 x 10^3 km/h . 3.4 x 10^3 km/h
Thank you ;-)
Why is the initial momentum at zero?
Hey guys, I was trying to figure out how to solve it using energy equation Et= Ek1+Ek2, but I am finding the answer to be 7.3 instead of 7.6
thank you so much
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Alot of kids come on this site and need help with there school work and if you can't deal with that then don't come on the website...
Mrs.Silverman if you are a teacher then why are you on this site. Are you cheating also??? Becuase if you come to this site then u must be cheating also right ..... Nice try.. Us kids are smarted then you think. WE ARE NOT STUPID. You might think that we
I got 1100 - I multiplied 2000 by 55% guess that is wrong!!
