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
Deffense [45]
3 years ago
6

An insulated lunch bag keeps food warm by

Physics
2 answers:
TiliK225 [7]3 years ago
4 0

slowing the transfer of thermal energy from the food inside the bag to the air outside the bag

Norma-Jean [14]3 years ago
3 0
The answers to the question above are "D) slowing the transfer of thermal energy from the food inside the bag to the air outside the bag" which is how an insulated food bag keeps the food warm. The "insulate" word means "to protect something from losing heat". Thus, the function of the insulated food bag is related<span> to its name.</span>
You might be interested in
Mass is a measure of weight. True False
8_murik_8 [283]

Answer: False

Explanation: Mass is a measure of the amount of matter in an object.

5 0
3 years ago
Read 2 more answers
It is 5.00 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10.0 k
8_murik_8 [283]

Answer:

a. Walking burns up more energy.

b. 1740 kJ

c. This is because more intense exercise releases a lot of energy in a short period of time, whereas, less intense energy releases it energy gradually over a long period of time.

Explanation:

a. We know energy W = Pt where P = power and t = time.

Now for walking, t = d/v where d = distance = 5.00 km and v = speed = 3.00 km/hr and P = 290 W

So, t = d/v = 5.00 km/3.00 km/hr = 5/3 hr = 5/3 × 3600 s = 6000 s

W = Pt = 290 W × 6000 s = 1740000 = 1740 kJ

Now for running, t = d/v where d = distance = 5.00 km and v = speed = 10.00 km/hr

So, t = d/v = 5.00 km/10.00 km/hr = 0.5 hr = 0.5 × 3600 s = 1800 s and P = 700 W

W = Pt = 700 W × 1800 s = 1260000 = 1260 kJ

Since walking burns up 1740 kJ and running burns up 1260 kJ, walking burns up more energy.

b. It burns up 1740 kJ

c. This is because more intense exercise releases a lot of energy in a short period of time, whereas, less intense energy releases it energy gradually over a long period of time.

4 0
3 years ago
11. A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting?
Mademuasel [1]
Hope this answers your question!! Ask any help at anytime
4 0
3 years ago
Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound wav
777dan777 [17]
I just took the test it is D




I am 100% sure
8 0
3 years ago
Read 2 more answers
A temperature of 20°C is equal to <br> °F.
babymother [125]
The temperature of 20°C is equal to 68.0<span>°F</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • A closed box with square base is to be built to house an ant colony. the bottom of the box and all four sides are to be made of
    13·1 answer
  • What effect do sound waves have on air particles
    5·1 answer
  • The synthesis of nitrogen trihydride from nitrogen gas and hydrogen gas is shown by which balanced chemical equation?
    6·2 answers
  • What are the three categories of adult development?
    9·1 answer
  • A charge of 6.4x 10^-7 c experiences an electric force of 1.8 x10^-1 N. What is the electric field strength ?
    14·1 answer
  • The burners on this electric stove provide _________ to the flow of electric current and electricity is then converted into ____
    5·2 answers
  • Which makes fast-moving water a greater force of erosion?
    11·2 answers
  • Why electrons flow in a wire when connected to a battery?
    15·1 answer
  • ___________ have the highest rates of star formation
    6·1 answer
  • A spacecraft travels at 1.5 X 108 m/s relative to Earth. A process onboard the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!