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3 years ago

On a roller coaster, when does the car have potential kinetic energy and when is energy transferred

1 answer:

5 0

The roller coaster has potential energy at the top of a slope or hump on the track now for kinetic energy is going down the track which gains it but when u at the end potential regains energy

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HELP ME FR I NEED SOMEONE TO HELP ME PLZ PLZ!!!!

zhuklara [117]

Answer:

One time I was feeling really scared in my room, but I played a calming song called "Soak up the Sun".

Explanation:

It was played on my Echo dot. I felt better and happier from it.

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2 years ago

What are the 2 main groups of the nervous system (type the whole name)? What is the major

VLD [36.1K]

The central nervous system and the peripheral nervous system

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3 years ago

Where does mildew usually grow? Besides on clothes and wet/damp areas.

algol13

Answer:

Mildew thrives in damp, wet places like basements, attics and closed closets -- so strive to keep clothing as clean and dry as possible at all times. Clothing with grease or soiled spots encourages mildew growth, so don't leave dirty clothes on the floor or in the washing machine.

Explanation:

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3 years ago

What is one reason it is necessary for humans to eat saturated fats

Anestetic [448]

one reason it is necessary for

humans to eat saturated fats is for protein

7 0

2 years ago

In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta

Brrunno [24]

Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R , white = r

Pointed = P , smooth = p

Red, pointed x white,smooth ------ Parents

RRPP rrpp

RP rp ----------------- Gametes

RrPp -------- $F_1$

(red, pointed)

When this $F_1$ is test crossed,

RrPp x rrpp ---- $F_1$ test cross

Gametes → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

Total = 100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

$=\frac{14+10}{100} \times 100$

= 24 %

= 24 map units

4 0

2 years ago