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
RUDIKE [14]
3 years ago
8

A Blu-ray disk spins up from rest to an angular speed of about 10,000 revolutions per minute. If it

Physics
1 answer:
erma4kov [3.2K]3 years ago
4 0
The correct answer is B 5,000 rev/s^2
You might be interested in
Fossils reveal which of the following about a species or organism
pentagon [3]
The appearance of the organism and its structures, because the fossils are basically worn out parts of the organism. IT IS basically the organism.
8 0
4 years ago
a 5.0 kg block is at rest on a horizontal floor. if you push horizontally on the 5.0 kg block with a force of 15.0 n, it just st
zheka24 [161]

For the 5.0Kg block with the force of 15 Newton, the coefficient of static friction (μ) comes out to be 0.306. Applying the formula F = μmg.

Static friction acts on stationary body/body at rest. Let μ be the coefficient of static friction between the block and the horizontal floor.

Using the formula: F = μmg

Where,

F = Force , m= mass of the block and g = gravity.

and values of: m= 5.0Kg, F= 15.0N, g= 9.8m/s²

We can get: μ = F/(mg)

μ = 15/49

μ =0.306

Therefore, coefficient of static friction (μ) = 0.306.

To learn more about static friction visit the link- brainly.com/question/13680415

#SPJ4

4 0
2 years ago
Suppose you want to search for brown dwarfs using a space telescope. Will you design your telescope to detect light in the ultra
Lisa [10]

Answer:

infrared part of the spectrum

Explanation:

brown dwarfs are relatively cool and have temperatures of about 2000 K emitting their light in the infrared and practically none in the ultraviolet part of the spectrum.

3 0
4 years ago
True or false: Electromagnetic waves can pass through a vacuum but mechanical waves can not.
grin007 [14]
True i believe. It says my comment has to be longer so i’m just typingggg
7 0
3 years ago
A bullet of mass m, moving horizontally with speed u, meets a block of wood of mass M, travelling along the same line but in the
natulia [17]

Answer:

Explanation:

First of all we shall calculate the velocity of composite mass . Let it be v . Applying law of conservation of momentum

mu - MU = ( m + M ) v

v = mu - MU /  ( m + M )

loss of kinetic energy

= 1/ 2 mu² + 1/2 MU² - 1/2 ( M +m ) v²

= 1/ 2 mu² + 1/2 MU² - 1/2 ( M +m ) (mu - MU)² / ( m + M )²

= 1/ 2 mu² + 1/2 MU² - 1/2  (mu - MU)² / ( m + M )

= 1/2 [ m²u² + mMu² +mMU² + m²U² - m²u² - M²U² - 2 muMU ] /  ( m + M )

=  1 / 2 [ mMu² + mMU² - 2 muMU ] /  ( m + M )

= 1 / 2mM  [ (u² + U² - 2 uU)  /  ( m + M )]

= 1/2 mM  x k

where

k =  [ (u² + U² - 2 uU)  /  ( m + M )]

Given

m = .004 kg

M = 4 kg

u = 890 ms⁻¹

U = 7 ms⁻¹

k = ( 890² + 7² - 2 x 890 x 7 ) / 4.004

= ( 792100 + 49 - 12460 ) / 4.004

= 194727.52

loss of kinetic energy

= 1/2 mM  x k

= .5 x .004 x 4 x 194727.52

= 1557.82 J .

3 0
3 years ago
Other questions:
  • Please help me with this practice question
    11·2 answers
  • Comparing objects in a related group can reveal patterns among them. These patterns in turn can help us learn more about those o
    5·1 answer
  • Geothermal energy generation uses what kind of turbine?
    13·1 answer
  • ANOTHER 40 POINTS!!!
    7·1 answer
  • What do you mean by real image
    8·1 answer
  • In the parts that follow select whether the number presented in statement A is greater than, less than, or equal to the number p
    7·1 answer
  • Chemotherapy is used to treat
    11·1 answer
  • WHOEVER ANSWERS CORRECTLY I'LL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!
    14·1 answer
  • Why type of volcano is built almost entirely from ejected lava fragments
    15·1 answer
  • A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!