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
antiseptic1488 [7]
3 years ago
13

Which of the following is not a multicellular organism?

Physics
2 answers:
zmey [24]3 years ago
8 0
Bacteria

Ants, gnats, and dogs are all multicellular.
atroni [7]3 years ago
8 0
Bacteria on that yepnsiree
You might be interested in
A mass of 5 kg stretches a spring 20 cm. The mass is acted on by an external force of 10 sint4 N (newtons) and moves in a medium
Sidana [21]

Answer:Answer:

Initial value problem is:

u'' + 10u' + 98u = (2 sin(t/2) N for u(0) = 0

u'(0) = 0.03m/s

Explanation:

The directions of Fd(t*) and U'(t*) are not specified in the question, so we'll take Fd(t*) to be negative and U'(t*) to be positive. This is due to the fact that the damping factor acts in the direction opposite the direction of the motion of the mass.

M = 5kg; L= 10cm or 0.1m;

F(t) = 10 sin(t/2) N ; Fd(t*) = - 2N

U'(t*) = 4cm/s or 0.04m/s

u(0) = 0

u'(0) = 3cm/s or 0.03m/s

Now, we know that W = KL.

Where K is the spring constant.

And L is the length of extension.

So, k = W/L

W= mg = 5 x 9.81 = 49.05N

So,k = 49.05/0.1 = 490.5kg/s^(2)

Now from spring damping, we know that; Fd(t*) = - γu'(t*)

Where,γ = damping coefficient

So, γ = - Fd(t*)/u'(t*)

So, γ = 2/0.04 = 50 Ns/m

Therefore, the initial value problem which describes the motion of the mass is;

5u'' + 50u' + 490u = (10 sin(t/2) N

Divide each term by 5 to give;

u'' + 10u' + 98u = (2 sin(t/2) N for u(0) = 0

u'(0) = 0.03m/s

Explanation:

6 0
3 years ago
A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is
Aliun [14]

Answer:

the work required for the loading of second dart is 64 times greater as work required for loading the first dart.

Explanation:

k = spring constant of the spring loaded toy dart gun

x₁ = compression of spring to load the first dart = d

x₂ = compression of spring to load the second dart = 8 d

E₁ = Work required to load the first dart

E₂ = Work required to load the second dart

Work required to load the first dart is given as

E₁ = (0.5) k x₁² = (0.5) k d²

Work required to load the second dart is given as

E₂ = (0.5) k x₂² = (0.5) k (8d)² = (64) (0.5) k d²

E₂ = 64 E₁

So the work required for the loading of second dart is 64 times greater as work required for loading the first dart

8 0
3 years ago
Hii please help i’ll give brainliest!!
weqwewe [10]

Answer:

Hey buddy, it is D

Explanation: Just do the math, take 30 and then subtract 20 ok and then yo would have 10, then the 10is really the 30 and the 30 is pointing to the left so 10 newtons to the left and also your welcome

4 0
3 years ago
Please Help!!!!
oee [108]
I think is limestone
7 0
3 years ago
How we will measure centimeters
Bingel [31]

Answer:

  • .

Explanation:

——»To measure centimeters, we can use ruler.

  • Use a ruler with the side marked either cm or mm. Align the edge of the object with the first centimeter line on the ruler, then find the length in whole centimeters, or the larger numbers on the ruler.
7 0
2 years ago
Other questions:
  • Hydrogen gas was cooled from 150c to 50c. its new volume is 75.0 ml. what was its original volume
    5·1 answer
  • Consider a standing wave in a one dimensional ideal medium of length "D" (like a vibrating string).
    8·1 answer
  • An object with a mass of 20 kg has a net force of 80 N acting on it. What is the acceleration of the object
    12·1 answer
  • Computer science <br> Need answers please ^^
    8·1 answer
  • a 50- kg block of concrete is pulled upward (not sideways) with a force of 600 n =what is the acceleration
    5·1 answer
  • Winds across the globe tend to curve north or south because of the
    6·1 answer
  • Matt plays badminton. He serves the birdie with a velocity of 4.25 m/s [right] covering a displacement of 5.2 m [forward]. How m
    10·1 answer
  • An object moves in a direction parallel to its length with a velocity that approaches the velocity of light. The length of this
    9·1 answer
  • You throw a snowball horizontally. It hits a target 2 meters away. You notice that it hit o.9m below where you aimed. With what
    10·1 answer
  • A 60.-kilogram physics student would weigh 1560
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!