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Kaity
Questions and answers by visitors named
Kaity
Questions (19)
When your eye is submerged in water, is the bending of light rays from water to your eyes more, less, or the same as in air?
4 answers
1,284 views
Why can't you take a photograph of your image in a plane mirror and focus the camera on both your image and on the mirror frame?
2 answers
539 views
The images produced by a converging camera lens are upside down. Does this mean the photographs taken with the cameras are
3 answers
1,897 views
Why do older people who do not wear glasses read books farther away from their eyes than younger people do?
3 answers
2,105 views
1 What is a hupotheses?
2 what further information do we need to be more certain of the hypotheses? ( give examples)
4 answers
350 views
1 Which do you think is more effective and why?
- Gathering a lot of data or - Gathering a random sample of data? 2 How does this
2 answers
512 views
Name the 6 seas of the " Fertile Crescent" / Middle East?
6 answers
626 views
How does this ( hypotheses) study compare to scientists who study the structure of the atom or evolution?
3 answers
409 views
Several hypotheses may fit every set of data. what is important to know when you hear about a new scientific finding? NUmber the
10 answers
572 views
What are the differences between these things?
1. substance vs. mixture 2. homogeneous vs. heterogeneous 3. solute vs. solvent 4.
5 answers
617 views
F=Gm1m2/d2 solve for m1
7 answers
5,007 views
4. If the rule (x, y) ¡ú (x + 3, y ¨C 3) is applied to the original triangle, give the coordinates of and draw the image.
2 answers
505 views
An interior decorator is buying a fringe for the edge of a rug in the shape of a regular octagon. The side length of the rug
2 answers
636 views
I am doing my physics homework and am stuck on this one problem. can anyone help me please?
Two blocks are connected by a
1 answer
838 views
i am going a center of gravity problem, with the x=w1(x1)+w2x2..../ W1+W2..
and i keep getting the wrong answer can someone
1 answer
975 views
I have to create a contribution margin income statement (per unit) and need to determine how many burgers per hour I think the
2 answers
945 views
Five friends went to a baseball game. Three of friends each bought a ticket for x dollar and soda for $6.00. The other two
2 answers
586 views
Consider a train that rounds a curve with a radius of 574 m at a speed of 160 km/h. Calculate the friction force on the
1 answer
1,081 views
Store A offers a 60% discount. Store B has a sale for 2/3 off. Which store gives the greater discount? Explain.
1 answer
466 views
Answers (12)
Hi
(a) Top block: F-friction=M1a F=2.9a+(0.21*2.9*9.8) Bottom block: friction=M2a a=(0.21*2.9*9.8)/5.5 F=(0.21*2.9*9.8*2.9)/5.5+(0.21*2.9*9.8)=9.12N (b) Bottom block: F-friction=M2a F=5.5a+(0.21*2.9*9.8) Top block: 0.21*2.9*9.8=2.9a a=0.21*9.8
(a) Top block: F-friction=M1a F=2.7a+(0.21*2.7*9.8) From bottom block: friction=M2a a=(0.21*2.7*9.8)/4.7 F=(0.21*2.7*9.8*2.7)/4.7+(0.21*2.7*9.8)=8.749N (b) Bottom block: F-friction=M2a F=4.7a+(0.21*2.7*9.8) Top block: 0.21*2.7*9.8=2.7a a=0.21*9.8
thanks
The first one
thanks
i don't know ........plz help
and what about others?
hypotheses
thank u so much
Are these the seas? black , caspian, mediterranean, red, arabian and ? ( which is the last one???
thanks a lot u really helped me....can u help me with some of the questions that i have just posted
