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
bazaltina [42]
3 years ago
15

Please help me with this question...

Physics
2 answers:
Yakvenalex [24]3 years ago
7 0
1) In first case, both the objects(hand & tea) are in direct contact, so heat will flow by the process of "Conduction" 

2) In this case, objects are not in direct contact, and heat is transferring from one to another by "Convection"

3) Here, there is no contact between the objects (our body & sun), sun light with heat comes through the process of "Radiation"

In short, Your Answers would be:
1) Conduction
2) Convection
3) Radiation

Hope this helps!
Arturiano [62]3 years ago
4 0
The first is conduction. 

This comes as the hot water spills on to your hand through contact.

The second is convection. The hot air rising is due to convection currents being set up.

The third is radiation. This is heat transfer through space.

You might be interested in
An astronaut has left the International Space Station to test a new space scooter. Her partner measures the following velocity c
KiRa [710]

Acceleration can be defined as the change of speed in an instant of time, that is

a = \frac{v_f-v_i}{\Delta t}

Here,

v_f = Final velocity

v_i = Initial velocity

\Delta t = Change in time

From this expression we will calculate the requested values replacing the variables in each of the given terms

PART A) The values under this condition are:

v_f = 5.3m/s

v_i = 15m/s

\Delta t = 10.4s

Replacing,

a = \frac{5.3m/s-(15m/s)}{10.4s}

a = -0.93m/s^2

PART B ) The values under this condition are:

v_f = -15m/s

v_i = -5.3m/s

\Delta t = 10.4

Replacing,

a = \frac{-(15m/s)-(-5.3m/s)}{10.4s}

a = -0.93m/s^2

Therefore the acceleration in the second time interval is -0.93m/s^2

PART C) The values under this condition are:

v_f = -15m/s

v_i = 15m/s

\Delta t = 10.4

Replacing,

a = \frac{-15m/s-(15m/s)}{10.4s}

a = -2.9m/s^2

6 0
3 years ago
A __________ has distinct properties and composition that never vary. A) solution B) molecule C) pure substance D) heterogeneous
Nataly [62]
Matter is defined as anything that has mass and occupies space, it may be classified into three states, solid, liquids or gases. Molecules is the smallest particle of an element that has the chemical properties of the element or the compound. it contains two or more atoms that are joined together. A pure substance is a matter that has distinct properties and a composition that does not vary from sample to sample. Thus the correct answer is C
8 0
3 years ago
Read 2 more answers
an electric motor converts electrical energy into which kind of energy? potential kinetic storage chemical​
liubo4ka [24]

Answer:

kinetic

Explanation:

6 0
3 years ago
Read 2 more answers
What is a photovoltaic cell
noname [10]

Its a solar cell. Photo voltaic Cell is also known as a solar cell.

4 0
4 years ago
If we made a model with our solar system the size of an Oreo cookie, what would be the largest object that would fit inside your
matrenka [14]

Answer:The television

Explanation:

6 0
3 years ago
Other questions:
  • Describe the motion of an object that has an elephant acceleration of 0 mi./s squared
    15·1 answer
  • Which letter on the diagram below represents the crest of a wave??<br><br> WILL DO BRAINLIEST(:
    7·2 answers
  • The force of gravity between two objects depends on ___________.
    5·1 answer
  • A person hangs from a nylon rope (Young's modulus of 5 x 109 N/m2) as seen in the picture below. The rope stretches by 2 % and h
    6·1 answer
  • A 500.0-g chunk of an unknown metal, which has been in boiling water for several minutes, is quickly dropped into an insulating
    9·1 answer
  • A car accelerates from rest at 5.75m/s2 for 4.4 sec when it runs out of pavement and runs into some mud. In the mud it accelerat
    6·1 answer
  • The current through each resistor in the two-resistor circuit is _________ the current through the resistor in the one-resistor
    15·1 answer
  • (give the answer or I'll report) please solve it with the steps​
    11·1 answer
  • A body is moving with an acceleration of 60 m/s^2(square).If the force applied to the body is 4200N.Calculate its mass.​
    10·1 answer
  • If you increase the frequency of a sound wave four times, what will happen to its speed?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!