1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastaziya [24]
3 years ago
11

Biologists use ball-and-stick models to study complex molecules by representing atoms with balls and bonds with sticks. DNA is a

biological molecule that contains millions of atoms. What is a limitation of using a ball-and-stick model for DNA
Physics
1 answer:
AleksAgata [21]3 years ago
7 0
One of the major limitations of using the ball and stick model for DNA, is that within a single double stranded segment of DNA, one would have to use many many balls to represent atoms that are present in the sugar phosphate backbone, along with all of the main atoms that compose the nitrogenous bases of DNA, we also cannot construct or show the helical form of DNA, by using balls and sticks as well.
You might be interested in
A sealed 26-m3 tank is filled with 6000 moles of oxygen gas (O2) at an initial temperature of 270 K. The gas is heated to a fina
TiliK225 [7]

Answer:

The final pressure of oxygen gas is 8.33 atm.

Explanation:

From the given data

V=26 m^3 or 26000 L

T1=270K

T2=440K

n1=6000 moles

R=0.0821 L.atm/molK

Now from the ideal gas equation

P_2V_2=nRT_2\\P_2=\frac{nRT_2}{V_2}\\P_2=\frac{6000*0.0821*440}{26000}\\\\P_2=8.33 atm\\

As the options given are not defined in which unit thus the final pressure of oxygen gas is 8.33 atm.

<em>*The options are provided for a different question where </em>

3 0
4 years ago
A machine gun with a mass of 5kg fires a 50g bullet at a speed of 100m/s calculate the recoil speed of the machine gun
Alenkinab [10]

Answer:

Explanation:

Convert mass of bullet 50g in kg

✯ Divide 50 by 1000

⟹ 50/1000

∴ 0.05 kg

3 0
3 years ago
What is the freezing point of water in kelvin, celsius and fahrenheit?
cestrela7 [59]
0C, 273.15 K and 32 F
7 0
4 years ago
The mass of the skateboard is 1.8kg and the mass of the skateboarder is 42kg.
Murljashka [212]
Total momentum must be conserved since there are no external forces in the horizontal direction on the skateboarder or the skateboard.

Momentum before the jump:
P = m_1v_1 + m_2v_2 = (1.8kg)(0) + (42kg)(0) = 0

Momentum after the jump:
P =  m_1v_1 + m_2v_2 = (1.8kg)(v_1) + (42kg)(0.3 \frac{m}{s} ) = 0

Solving for the velocity v:
v_1 = -  \frac{m_2v_2}{m_1}  = -  \frac{(42kg)(0.3 \frac{m}{s} )}{1.8kg} = -7  \frac{m}{s}
4 0
4 years ago
A grocery cart with a mass of 15 kg is pushed at constant speed along an aisle by a force fp = 12 n which acts at an angle of 17
Korolek [52]

<span>Given:

Mass of cart: 15kg</span>

Aisle length = 14m

Angle = 17° below the horizontal

Force fp = 12 N

 

So, the solution would be like this for this specific problem:

 

<span><span>1)    </span>W(by applied force) = F(applied) x s x cosθ <span>
=>W(a) = 12 x 14 x cos17* = 160.66 J </span></span>
<span><span>
2)    </span>By F(net) = F(applied) - F(friction) <span>
=>As v = constant => a = 0 => F(net) = 0 
=>F(applied) = F(friction) 
<span>=>W(friction) = -F(friction) x s
=>W(friction) = -F(applied) x s 
=>W(f) = -12 x 14 x cos17* = -160.56 J </span></span></span>
<span><span>
3)    </span>0, as the displacement is perpendicular to Force </span>
<span><span>
4)    </span>0, as the displacement is perpendicular to Force</span>  
<span>
To add, the force that is applied<span> to an object by a person or another object is called the applied force.</span></span>
8 0
3 years ago
Other questions:
  • Uzupełnij zdania właściwymi sformułowaniami. Wyobraź sobie, że między linę a siodełko karuzeli łańcuchowej wmontowany jest siłom
    8·1 answer
  • Calculate the total electric flux leaving the cubical surface formed by the six planes x, y, z = ±5 if the charge distribution i
    5·1 answer
  • How is silver, gold, and bronze different.
    9·2 answers
  • Plz help me I will mark brainlieat Ques. Write down name and molecular formula of a
    10·1 answer
  • Sanitation can be accomplished by all of the means except
    12·1 answer
  • when you have a pot of water on the stove heat is transferred to the water describe the behavior of the water molecules and how
    7·1 answer
  • A light wave has a 670 nm wavelength in air. Its wavelength in a transparent solid is 420 nm.
    5·1 answer
  • Which rule for assigning oxidation numbers is correct
    14·1 answer
  • What is the direction of acceleration due to gravity ?​
    7·1 answer
  • Which of these is a result of gravitational lensing?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!