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
sleet_krkn [62]
1 year ago
9

22.What factor determines in the direction of heat flow between objects?Select one:a. The difference in density of the objects.

b. The difference in mass of the objects.c. The difference in temperature of the objects. d. The difference in size of the objects.
Physics
1 answer:
Gre4nikov [31]1 year ago
4 0

We will have that the factor that determines the direction of the heat flow between objects is the difference in temperature.

You might be interested in
What produces magnetic fields?
Darina [25.2K]
B. moving electric charges, hope this helps :)
6 0
3 years ago
Answer the following. (a) What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which r
bagirrra123 [75]

Answer:

(a) T = 2987.6 k

(b) T = 19986.2 k

Explanation:

The temperature of a star in terms of peak wavelength can be given by Wein's Displacement Law, which is as follows:

T = \frac{0.2898\ x\ 10^{-2}\ m.k}{\lambda_{max}}

where,

T = Radiated surface temperature

\lambda_{max} = peak wavelength

(a)

here,

\lambda_{max} = 970 nm = 9.7 x 10⁻⁷ m

Therefore,

T = \frac{0.2898\ x\ 10^{-2}\ m.k}{9.7\ x\ 10^{-7}\ m}

<u>T = 2987.6 k</u>

(b)

here,

\lambda_{max} = 145 nm = 1.45 x 10⁻⁷ m

Therefore,

T = \frac{0.2898\ x\ 10^{-2}\ m.k}{1.45\ x\ 10^{-7}\ m}

<u>T = 19986.2 k</u>

6 0
2 years ago
I was in Anchorage Alaska during the Summer Solstice. The sun rose around 3am and set around 1 am the next day-- almost 24 hours
m_a_m_a [10]

Answer:

Daylight hours would be shorter.

Explanation:

If there were no tilt of the axis at all, every place on the planet except the north and south poles would have 12 hours of daylight and 12 hours of night every day of the year.

At a 10° tilt, the arctic circle and antarctic circles would be a little less than half the distance from the poles as they are today.

3 0
3 years ago
How is thermal energy transferred during convection? by physical contact by electromagnetic waves by movement in fluids by mecha
Alla [95]

by movement in fluids

7 0
3 years ago
Read 2 more answers
A person in the back of a pick-up moving at 20 m/s relative to the Earth, throws a baseball with a speed of 15 m/s in a directio
Bumek [7]

Answer:

This is known as a Galilean transformation where

V' = V - U

Where the primed frame is the Earth frame and the unprimed frame is the frame moving with respect to the moving frame

V - speed of object in the unprimed frame

U - speed of primed frame with respect to the unprimed frame

Here we have:

V = -15 m/s        speed of ball in the moving frame (the truck)

U =  -20 m/s        speed of primed (rest) frame with respect to moving frame

So  V' = -15 - (-20) = 5 m/s

It may help if you draw a vector representing the moving frame and then add

a vector representing the speed of the ball in the moving frame.

3 0
3 years ago
Other questions:
  • While at a party, you pull up a sound intensity level app on your phone (everyone does stuff like that, right?), and it reads 83
    8·1 answer
  • What is the strength of the electric field 0.020 m from a 12 uc charge?
    14·1 answer
  • Which statement best describes the circular flow model?
    13·1 answer
  • When the point of reference (the observer) is in motion, it flips the "rules" of vector addition (you ADD the vectors going in o
    14·1 answer
  • Order the seven basic spectral types from hottest to coldest.
    12·1 answer
  • In order to determine the mass moment of inertia of a flywheel of radius 600 mm, a 12-kg block is attached to a wire that is wra
    12·1 answer
  • A skillet is removed from an oven whose temperature is 450°F and placed in a room whose temperature is 70°F. After 5 minutes, th
    10·1 answer
  • What do Babys Come From
    5·1 answer
  • Carbon and hydrogen are examples of pure substances or
    14·2 answers
  • The diagram below shows two bowling balls, A and B, each having a mass of 7.0 kg, placed 2.00 m apart between their centers.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!