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
Maksim231197 [3]
3 years ago
11

Hot coffee in a mug cools over time and the mug warms up. Which describes the energy in this system?

Physics
2 answers:
UNO [17]3 years ago
7 0

Answer:

<u>D</u>

Explanation:

where the heat transfers from coffee to mug.

Alex17521 [72]3 years ago
6 0
<span>The heat energy is being transferred between the two substances by thermal conduction. Because the hot coffee is at a different temperature to the mug, heat energy flows between them so that they reach thermal equilibrium, or the same temperature. This kind of heat transfer always happens from hotter temperatures to cooler temperatures.</span>
You might be interested in
If you added 5 x more mass into a wheelbarrow, how much greater would
aev [14]

Answer:

5 x biger

Explanation:

becuze if it ia 5× more it nids 5×more force to be =

7 0
3 years ago
During a marathon race, a runner’s blood flow increases to 10.0 times her resting rate. Her blood’s viscosity has dropped to 95.
Phoenix [80]

To solve the problem it is necessary to apply the equations related to the Poiseuilles laminar flow law, with which the stationary laminar flow ΦV of an incompressible and uniformly viscous liquid (also called Newtonian fluid) can be determined through a cylindrical tube of constant circular section. Mathematically this can be expressed:

Q = \frac{\Delta P \pi r^4}{8\eta l}

Where:

\eta_i = are the viscosities of the concrete before and after the increase

l = Length of the vessel

r_1, R_2 = Radio of the vessel before and after the increase

\Delta P= Change in the pressure

Q_{1,2} = The rates of flow before and after he increase

Our values are given as:

Q_2 = 10Q_1 \rightarrow 10 times her resting rate

\eta_2 = 0.95\eta_1 95% of its normal value

\Delta P_2 = 1.5\Delta P_1 Increase of 50%

Plugging known information to get

Q_1 = \frac{\Delta P \pi r^4}{8\eta l}

Q_1 8\eta_1 l = \Delta P_1 \pi r_1^4

r_1^4 = \frac{Q_1 8\eta_1 l}{\Delta P_1 \pi}

r_1 = (\frac{Q_1 8\eta_1 l}{\Delta P_1 \pi})^{1/4}

r_2 = (\frac{Q_2 8\eta_2 l}{\Delta P_2 \pi})^{1/4}

r_2 = (\frac{10Q_18 \times 0.95\eta_1 l}{1.5\Delta P_1 \pi})^{1/4}

r_2 = 1.586r_1

Therefore the factor of average radio of her blood vessels increased is 1.589 the initial factor after the increase.

7 0
3 years ago
This nutrient can be hidden in food and has twice as many calories as other nutrients
vfiekz [6]
Protein has 4 cals carbs have 4 too. Fat however has 9. 
6 0
3 years ago
A meterstick is placed on a pivot point of 42.5cm and a 45g mass is hung at the 20cm mark. When released the meterstick remains
Vikki [24]
Hey i dont have an answer but i need the points for finals today. Thank you
6 0
3 years ago
Read 2 more answers
On a windy day, the wind turbine transfers 78 W of power. Calculate the amount of energy the turbine transfers in 10s.​
tangare [24]

Answer:

Energy = 780 Joules

Explanation:

Given the following data;

Power = 78 Watts

Time = 10 seconds

To find the energy transferred;

Energy refers to the amount or quantity of power which is being consumed by an individual, group of people or organization over a specific period of time.

Mathematically, energy is given by the formula;

Energy = power * time

Energy = 78 * 10

Energy = 780 Joules

Therefore, the amount of energy the turbine transferred is 780 Joules

4 0
2 years ago
Other questions:
  • Technician A says that the paper test could detect a burned valve. Technician B says that a grayish white stain could be a coola
    10·1 answer
  • How much resistance is required to limit the current to 1.5 mA if the potential drop across the resistor is 6V
    8·1 answer
  • Why do scientists often take several measurements of the same object, average them together, and use the average value as the me
    7·1 answer
  • A 4.15-volt battery is connected across a parallel-plate capacitor. Illuminating the plates with ultraviolet light causes electr
    7·1 answer
  • Elaborate on the reason that "cola" type drinks are used to make effective marinades.
    13·2 answers
  • A woman performs 2000 J of work in order to push a cart full of groceries 50 meters. How much force did she apply to the cart?
    13·1 answer
  • What is the best description of the acceleration of an object?
    15·1 answer
  • What determines the state of matter for any substance
    10·1 answer
  • As a result of mitosis, the cels of a Molecular organism sure which of these properties select to correct answers. A. All cells
    13·2 answers
  • Im B O R E D someone please entertain me :(
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!