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
xenn [34]
3 years ago
12

Help me with number 8 please :(

Physics
1 answer:
stiks02 [169]3 years ago
5 0
Is there an answer key? with all words on it,
You might be interested in
Which model shows how an image appears to a person when they look through a concave lens?
slava [35]
What models are you talking about
7 0
2 years ago
Describe the motion of an unanchored rowboat when a water wave passes
USPshnik [31]
It mimics the movement of the waves 
6 0
3 years ago
Read 2 more answers
A wheel with moment of inertia 25 kg. m2 and angular velocity 10 rad/s begins to speed up, with angular acceleration 15 rad/sec2
Pani-rosa [81]

Answer:

(A) Angular speed 40 rad/sec

Rotation = 50 rad

(b) 37812.5 J

Explanation:

We have given moment of inertia of the wheel I=25kgm^2

Initial angular velocity of the wheel \omega _0=10rad/sec

Angular acceleration \alpha =15rad/sec^2

(a) We know that \omega =\omega _0+\alpha t

We have given t = 2 sec

So \omega =10+15\times  2=40rad/sec

Now \Theta =\omega _0t+\frac{1}{2}\alpha t^2=10\times 2+\frac{1}{2}\times 15\times 2^2=50rad

(b) After 3 sec \omega =10+15\times 3=55rad/sec

We know that kinetic energy is given by Ke=\frac{1}{2}I\omega ^2=\frac{1}{2}\times 25\times 55^2=37812.5J

7 0
3 years ago
An experiment is conducted using 2 plants to determine if the amount of sunlight they receive affects how fast they grow. Which
Phantasy [73]

Greetings!

The correct answer choice is Choice 4.

<em>Why?</em>

In a scientific experiment the only thing being changed is the independent variable. Everything else should stay the same.

In this experiment, the independent variable is the amount of sunlight each plant should receive. <em>Here's a tip</em>- when looking for and independent variable look for whats being changed on purpose.

Hope this helps!

~Fluerie

4 0
3 years ago
Thylakoids contain chlorophyl that absorb solar energy
steposvetlana [31]

Answer:

True

True statement:

Because pigment molecules absorb solar energy and thylakoids are pigment molecules

3 0
3 years ago
Other questions:
  • Using kinetic molecular theory and collision theory, explain why the absolute temperature scale (kelvins) is more appropriate th
    12·2 answers
  • how far can your little brother get if he can travel at 2.5 m/s and in 5 seconds you will discover that his gin has run out of p
    15·1 answer
  • In the standing broad jump, one squats and then pushes off with the legs to see how far one can jump. Suppose the extension of t
    14·2 answers
  • Mady has an infinite number of balls and empty boxes available to her. The empty boxes, each capable of holding four balls, are
    14·1 answer
  • Vectors and have scalar product -9.00 and their vector product has magnitude 7.00.
    8·1 answer
  • 3. To open a soda bottle, a force of 55.0 N is applied to the bottle opener. If the bottle opener
    13·1 answer
  • A camera gives a proper exposure when set to a shutter speed of 1/250 s at f-number F8.0. The photographer wants to change the s
    8·1 answer
  • A passenger in a car moving at a 40 m/s is not moving when which frame reference is used?
    6·1 answer
  • Which describes how prevailing winds affect precipitation in a region?
    7·2 answers
  • What type of stimulus do we tend to be particularly aware of ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!