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
vlada-n [284]
4 years ago
15

What is a chromosome made of?

Physics
2 answers:
Oliga [24]4 years ago
7 0
A chromosome is made of DNA
Alex4 years ago
7 0

Answer:DNA

Explanation:

You might be interested in
A maintenance worker wants to torque an engine bolt to 65.0 N m. If the torque wrench is 35cm in length, what is force applied t
harina [27]

Answer:

Force = 186 N

Explanation:

Torque is the rotational equivalent of linear force. It can be easely calculated using the formula :

Torque = \vec{r} \times \vec{F}

Where \vec{r} is a vector that from the origin of the coordinate system to the point at which the force is applied (the position vector), \vec{F} is the applied force.

The easiest way of computing the force is by setting the origin of the coordinate system to the lowest point of the torque wrench.  By doing this we have that r (the magnitud of the position vector) is 35cm.

Before computing the force we need to set all our values to the international system of units (SI). The torque is already in SI. The one missing is the length of the torque wrench (it is in centimeters and we need it in meters). So :

35cm * \dfrac{1m}{100cm} = 0.35m

Now using the torque formula:

Torque = \vec{r} \times \vec{F}

Torque = rFsin(\theta)}

Where \theta is the smaller angle between the force and the position vector. Because the force is applied perpendiculary to the position vector  \theta = 90°, thus :

Torque = rFsin(\theta)}

65 N m = (0.35m)Fsin(90°)}

F = \dfrac{65N m} {(0.35m)sin(90°)}

F = \dfrac{65N m} {(0.35m)sin(90°)}

F = \dfrac{1300} {7}N

so the force is approximately 186 N.

4 0
4 years ago
WAVES AND SOUND
lawyer [7]

Answer:

i think it is B

Explanation:

6 0
3 years ago
Ask Your Teacher The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 2.0 rev/s
adell [148]

Answer:

\theta = 20\ rev

Explanation:

Case 1

Given,

initial angular speed = 0 rev/s

final angular speed = 2 rev/s

time, t = 7 s

angular acceleration of the washer

\alpha = \dfrac{\omega_f-\omega_i}{t}

\alpha = \dfrac{2-0}{7}

\alpha = 0.286\ rev/s^2

using equation of rotational motion

\omega_f^2 = \omega_i^2 + 2 \alpha \theta_1

2^2 = 0^2 + 2\times 0.286 \times \theta_1

\theta_1 = 7 rev

Case 2

Given,

initial angular speed = 2 rev/s

final angular speed = 0 rev/s

time, t = 12 s

angular acceleration of the washer

\alpha = \dfrac{\omega_f-\omega_i}{t}

\alpha = \dfrac{0-2}{13}

\alpha = -0.154\ rev/s^2

using equation of rotational motion

\omega_f^2 = \omega_i^2 + 2 \alpha \theta_2

0^2 = 2^2 + 2\times (-0.154) \times \theta_2

\theta_2 = 13 rev

total revolution in this case

\theta = \theta_1 + \theta_2

\theta =7 +13

\theta = 20\ rev

total revolution of the washer is equal to 20 rev.

6 0
3 years ago
45 points PLEASE HELP ME!!!!<br> Describe Rutherford's contribution to the atomic model
GaryK [48]
Rutherford was the first person to make a model of an atom that was mostly accurate, the only thing is in his early model there were electrons and protons, at this time Rutherford did not know of a neutron and was not discovered until 1932.<span />
7 0
3 years ago
Read 2 more answers
What must be true for any endothermic reaction?
miskamm [114]
They have to be warm because of the word thermic which means heat
4 0
4 years ago
Other questions:
  • While driving down the road, a firefly strikes the windshield of a bus and makes a quite obvious mess in front of the face of th
    9·1 answer
  • How do you know when water is boiling?
    8·1 answer
  • How much voltage (in terms of the power source voltage bV) will the capacitor have when it has started at zero volts potential d
    15·1 answer
  • Which of these people have a stressed induced stomachache
    15·1 answer
  • Suppose an object of mass m is attached to the end of a spring hanging from the ceiling. The mass is at its equilibrium position
    14·1 answer
  • A hot piece of copper is placed in water in an insulated cup. What is the final
    11·1 answer
  • 20 kg rodsis on the edge of a 80 m high de What is the rodes gracional potencial energy?
    10·1 answer
  • Một mạch dao động điện từ có điện dung C= 0,25µF, hệ số tự cảm L= 0,1H và
    8·1 answer
  • Which of newton’s three laws does F=MA describe
    10·1 answer
  • 4. List 3 detailed examples of Newton's 3rd Law.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!