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
CaHeK987 [17]
3 years ago
10

Please help.

Physics
1 answer:
algol [13]3 years ago
8 0
Against because it may contain chemicals
You might be interested in
What’s The Answer, To The Question In The Photo
Sedbober [7]

Answer:

The correct answer is the third option: The kinetic energy of the water molecules decreases.

Explanation:

Temperature is, in depth, a statistical value; kind of an average of the particles movement in any physical system (such as a glass filled with water). Kinetic energy, for sure, is the energy resulting from movement (technically depending on mass and velocity of a system; in other words, the faster something moves, the greater its kinetic energy.

Since temperature is related to the total average random movement in a system, and so is the kinetic energy (related to movement through velocity), as the thermometer measures <u>less temperature</u>, that would mean that the particles (in this case: water particles) are <u>moving slowly</u>, so that: the slower something moves, the lower its kinetic energy.

<u>In summary:</u> temperature tells about how fast are moving and colliding the particles within a system, and since it is <em>directly proportional</em> to the amount of movement, it can be related (also <em>directly proportional</em>) to the kinectic energy.

4 0
3 years ago
A small block on a frictionless, horizontal surface has a mass of 0.0250 kg. It is attached to a massless cord passing through a
frosja888 [35]

Answer:

a) Yes

b) 7 rad/s

c) 0.01034 J

Explanation:

a)

Yes the angular momentum of the block is conserved since the net torque on the block is zero.

b)

m = mass of the block = 0.0250 kg

w₀ = initial angular speed before puling the cord = 1.75 rad/s

r₀ = initial radius before puling the cord = 0.3 m

w = final angular speed after puling the cord = ?

r = final  radius after puling the cord = 0.15 m

Using conservation of angular momentum

m r₀² w₀ = m r² w

r₀² w₀ = r² w

(0.3)² (1.75) = (0.15)² w

w = 7 rad/s

c)

Change in kinetic energy is given as

ΔKE = (0.5) (m r² w² - m r₀² w₀²)

ΔKE = (0.5) ((0.025) (0.15)² (7)² - (0.025) (0.3)² (1.75)²)

ΔKE = 0.01034 J

6 0
3 years ago
a geosynchronous satellite appears to remain over one spot on earth. a geosynchronous satellite has an orbital radius of 4.23 ×
Natasha2012 [34]

Given that,

radius, r = 4.23 x 10∧7 m

Period, T = ?

Since, we know that,

In a geosynchronous satellite, period is equal to the period of earth that is 24 hrs.

Therefore, Time period is equal to 24 hours.


8 0
3 years ago
If Vx= 9.5 units and Vy= -6.4 units, determine the magnitude of V
valkas [14]

Answer:

The magnitude of the velocity is approximately 11.45 units

Explanation:

Since they give us the x and y components of the vector velocity, we can find its magnitude via the Pythagorean theorem:

|v|=\sqrt{9.5^2+(-6.4)^2} \approx 11.45

5 0
2 years ago
What is the weighted average mass of chlorine
JulijaS [17]

Answer:

35.48 amu

Explanation:

3 0
2 years ago
Other questions:
  • Cookware companies have been using a chemical called C-8, which helps to create a nonstick coating to pans. However, the Environ
    15·2 answers
  • Simon is riding a bike at 12 km/h away from his friend Keesha. He throws a ball at 5 km/h back to Keesha, who is standing still
    14·1 answer
  • Coulomb is a very large unit for practical use. Justify your answer if 10^10 electrons are transferred from a body/second
    10·1 answer
  • Determine the answer to the equation 30 km/h × 17 h =
    6·1 answer
  • As a rubber band and moves forward, which of the following is true
    7·1 answer
  • Writers periodically compete to see who can write the longest sentence in literature. James Joyce long held the English record w
    10·1 answer
  • Different between group IA and IIA elements​
    7·1 answer
  • I need help ASAP plzzzz
    8·1 answer
  • A cruise ship has a mass of 100,000,000 kg and a kinetic energy of 5,000,000 kJ. Calculate the speed of the cruise ship.
    6·1 answer
  • 25. How long does it take a child on a swing to complete one swing if her center of gravity is 4.00 m below the pivot?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!