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
Zanzabum
3 years ago
13

We know cells are living because they

Physics
1 answer:
choli [55]3 years ago
3 0
<span>have the seven properties of life</span>
You might be interested in
A merry-go-round has a small box placed on it at a distance R' from its axis of
Lady_Fox [76]

The time after it starts spinning, that the box will slip off is 0.1 s.

<h3>Apply the principle of conservation of angular momentum</h3>

I₁ω₁ - I₂ω₂ = 0

I₁ω₁  =  I₂ω₂

where;

  • I₁ is initial moment of inertia
  • I₂ is final moment of inertia
  • ω₁ is initial angular speed
  • ω₂ is final angular speed

The final angular speed when the box slides off;

ω₂ = I₁ω₁ / I₂

ω₂  = [0.5(m₁ + m₂)(R + r)²] / (0.5MR²)

ω₂  = [0.5(30 + 0.3)(3.1 + 1.4)²] / (0.5 x 30 x 3.1²)

ω₂  = 2.13 rad/s

Time taken for the for box to slide off;

τ = Iα

τ = I(ω/t)

τ = (Iω)/t

t =  (Iω)/τ

t = (0.5 x 0.3 x 1.4² x 2.13)/6

t = 0.1 s

Thus, the time after it starts spinning, that the box will slip off is 0.1 s.

Learn more about moment of inertia here: brainly.com/question/3406242

#SPJ1

7 0
2 years ago
An object that is not accelerating or decelerating has zero net force acting on it. Choose 1 answer: Choose 1 answer: A True B F
Bumek [7]
Hey there,

Answer:

A, True

Hope this helps :D

<em>~Top</em>
3 0
3 years ago
Read 2 more answers
Car crosses the first third of the road with unknown speed and the rest of the road with the speed of 50 km/h. What is the the s
Digiron [165]
40 km/h because the average of 50 and 30 is 40
6 0
4 years ago
At one instant of time, a car and a truck are traveling side by side in adjacent lanes of a highway. The car has a greater veloc
Helen [10]

Answer:

NO

Explanation:

Acceleration is change in velocityΔv in respect to timeΔt

so if the velocity of the car is greater than the truck it does not mean that the car acceleration is greater than the truck.

Sometimes with constant velocity it means no accelaration ,but the truck may have accelaration

so, higher velocity of the car does not mean higher acceleration

5 0
3 years ago
What's the thrust force of 20,000N
nika2105 [10]

Answer:

895g

Explanation:

5 0
3 years ago
Other questions:
  • "Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their phase difference is 60.0°.
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=x%20%2B%205%20%3D%200.5%28x%20%20%2B%203%29%20%5E%7B2%7D%20" id="TexFormula1" title="x + 5 = 0
    8·1 answer
  • A scientist finds a new life form. The life form is 2 meters tall. It makes its own food. It has tubes that carry food and water
    7·1 answer
  • Difference between d.c and a.c
    7·1 answer
  • A diver springs upward from a board that is 3.90 m above the water. At the instant she contacts the water her speed is 13.2 m/s
    11·1 answer
  • What causes a substance to change states of matter?
    7·1 answer
  • It is desired to lay off certain horizontal distances for building layouts. The length of the tapes are not 100.00 ft. Determine
    14·1 answer
  • Two students measure the speed of light. One obtains (3.001 0.001)10^8 m/s; the other obtains (2.999 0.006)10^8 m/s.Required:Whi
    11·1 answer
  • ...
    15·1 answer
  • wishing to collect weather data on a remote island, you come up with an idea for sending a weather balloon to the location. You
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!