2 years ago

Which of the following statements about lipids and carbohydrates is true?

1 answer:

4 0

Answer : Lipids and carbohydrates are both made from carbon, hydrogen, and oxygen, but lipids have less oxygen (Option B)

Carbohydrates are biomolecules composed of carbon (C), hydrogen (H), and oxygen (O) in a 1:2:1 ratio, respectively.

Carbohydrates can be divided regarding the number of monomers in the biomolecule into monosaccharides, disaccharides, and polysaccharides.

Explanation:

hope this answer will helps you !

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A wave has a wavelength of 10 mm and a frequency of 4 hertz to what is it’s speed ?

nordsb [41]

Convert 10mm to metres = 0.01m

Wave speed = frequency *wavelength
= 4Hz*0.01m
= 0.04 m/s

Hope this helps

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2 years ago

Gamma rays have more energy than X-rays. What else is true about gamma rays?

posledela

The answer is D. They have a higher frequency than X-rays.

Gamma-rays falls in the electromagnetic spectrum above, Gamma-rays have frequencies greater than 10¹⁸ cycles per second, or Hertz (Hz)

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2 years ago

What is the potential energy of a 2 kilogram potted plant that is on a 1 meter high plant stand?

Monica [59]

PE=mgh
PE=2×9.8×1=19.6 J

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3 years ago

Two vectors pointing right starting at the same position. Vector A is on top and longer. Vector B is shorter and below.

Oksana_A [137]

Answer:

The displacements are not equal. While their direction is the same, their length (i.e., distance or magnitude) is not. A is longer than B.

Explanation:

correct on e2020- sample respnse

4 0

2 years ago

Read 2 more answers

With what minimum speed must you toss a 200 g ball straight up to just touch the 12-m-high roof of the gymnasium if you release

masha68 [24]

Answer:

v = 14.41 m/s

Explanation:

It is given that,

mass of the ball, m = 200 g = 0.2 kg

Height of the roof, h = 12 m

The ball is tossed 1.4 m above the ground, h' = 1.4 m

Let v is the minimum speed with which the ball is tossed. Using the conservation of energy to find it as :

$E_p=E_k$

$mg(h-h')=\dfrac{1}{2}mv^2$

$g(h-h')=\dfrac{1}{2}v^2$

$v=\sqrt{2g(h-h')}$

$v=\sqrt{2\times 9.8(12-1.4)}$

v = 14.41 m/s

So, the minimum speed with which the ball is thrown straight up is 14.41 m/s. Hence, this is the required solution.

4 0

2 years ago