# Science

### WHAT IS THE DOPPLER EFFECT?

WHAT IS THE DOPPLER EFFECT?

### Mycoplasma being a prokaryotic cell( p.c. contain cell wall) but it doesn’t has a cell wall,why?

Plz ans this ques as soon as possible

### Derivatice of j(x)=ln(e^nx+p) ?

Assuming n and p are constants, what should be the derivative???

### wat is the answer to 5 – 2y= 7 ?

wat is the answer to 5 – 2y= 7 ?

### Anyone out there good with statistics?

15. Consider the hypothesis test that compares the ages of husbands and wives. Here are the scores. The scores in the two groups are not related. Husband4627244172457332323X=82.8889 Wife434251839668533X=100 Assume that the scores are normally distributed (?=.05,two tailed) What is the critical value? A) 2.15 B) Cannot determine C) 0 D) 2.145 E) 2.131 16. Consider…

### Donating blood while on amoxicillin?

So there was a blood drive at my school today, and I was reading through the questionnaire and it had something in there about accutane, and I got my medicine (amoxicillin) mixed up with accutane and I decided not to give blood, then I called my mom to see if those pills were accutane or…

### FINDING SLOPE OF TANGENT?

SO, I have been given: y^(2) = x^(2) / (xy – 28) at (8,4). I am clueless on how to do this. In m calc group, I cannot find a problem as similar as this to use an example. Can someone show me step-by-step on how to get to the derivative in order to plug…

### Which of the following hypotheses argue that the reason we can’t find any recent specimens?

Which of the following hypotheses argue that the reason we can’t find any recent specimens of Homo neanderthalensis is because we interbred with them and they became part of our gene pool? A. Replacement B. Multiregional C. Assimilation D. Out of Africa

### If you travel the speed of light and you have your lights on, can you see where you are going?

If you travel the speed of light and you have your lights on, can you see where you are going?

### how do you do the math for how long a star will stay on the main sequence?

this is an online class just straight out of the textbook and i’m really bad at math and it doesn’t really explain it in the textbook About how long will a 0.5 star spend on the main sequence? Answer a. 57 billion years b. 5 million years c. 570 million years d. 5 billion years…