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valkas [14]
3 years ago
7

PLEASE HELP ASAP!!!! A huge thanks to anyone who can help me with 14 problems. I'll do anything to return the favor. All true an

d false. I will post two more sets of questions. PLEASE do not cheat and answer a random answer or just one question
1. True or False: Bacteria on legumes are able to fix nitrogen from the air.

2. T or F: Mitosis results in new cells with the same number of chromosomes as the parent cell from which they came.

3. Bile breaks down proteins for digestion.

4. A characteristic common to all biomes is the presence of cycles such as the nitrogen cycle.

5. The DNA molecule has a sugar-phosphate backbone.
Physics
1 answer:
snow_lady [41]3 years ago
4 0
Hello, I see you are in a jam. Lemme help.

1.) True
2.) True
3.) True
4.) True
5.) True

LOL these are all true ;)
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A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +46 N·m is ap
Rom4ik [11]

Answer:

Explanation:

Let Torque due to friction be

F  

Net torque

= 46 - F

Angular impulse = change in angular momentum

=(  46 - F ) x 17  = I X 580

When external torque is removed , only friction creates torque reducing its speed to zero in 120 s so

Angular impulse = change in angular momentum

F  x 120 = I X 580

(  46 - F ) x 17 = F  x 120

137 F = 46 x 17

F = 5.7 Nm

b )

Putting this value in first equation

5.7 x 120 = I x 580

I = 1.18 kg m²

8 0
3 years ago
An object is thrown with an initial speed v near the surface of Earth. Assume that air resistance is negligible and the gravitat
IgorLugansk [536]

Answer:

E. downward and constant

Explanation:

Freefall is a special case of motion with constant acceleration because the acceleration due to gravity is always constant and downward. This is true even when an object is thrown upward or has zero velocity.

For example, when a ball is thrown up in the air, the ball's velocity is initially upward. Since gravity pulls the object toward the earth with a constant acceleration ggg, the magnitude of velocity decreases as the ball approaches maximum height. At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth.

3 0
3 years ago
Read 2 more answers
A bungee jumper hangs from a bungee cord with zero velocity. If the bungee
Oksana_A [137]

Answer:

the answer is 14.2 m

Explanation:

8 0
3 years ago
Community psychologists are not<br> concerned with worker stress factors.<br> True<br> False
fgiga [73]
It would be false as your answer
8 0
2 years ago
The student places 0.5 kg of potato into a pan of water.
nasty-shy [4]

Answer:

136000 J or 136 kJ

Explanation:

Formula

Heat = m * c * deltaH

Givens

m= 0.5 kg

c = 3400 J / (kg * oC)

Deltat = (100oC - 20oC)

deltat = 80oC

Solution

Heat = 0.5 kg * 3400 J/(kg* oC) * 80oC

Heat = 136000 Joules

Heat = 136 kg

Technically there is only 1 place of accuracy.

6 0
3 years ago
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