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
BabaBlast [244]
3 years ago
8

Select the correct answer.

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

Answer:

B

Explanation:

But molecules at a higher temperature have more energy.

Alekssandra [29.7K]3 years ago
7 0

Answer: B. Raising the temperature of the air

You might be interested in
Chi walked 100 meters in 5 minutes. She took another 15 minutes to walk another 400 meters to reach her house. What is her avera
Law Incorporation [45]

Average speed is the ratio of total distance moved by Chi in total time interval

So here we will have

Total distance = 100 m + 400 m

d = 500 m = 0.5 km

Total time taken = 5 min + 15 min = 20 min

T = \frac{20}{60} = \frac{1}{3} hour

now by the formula of average speed we know that

v_{avg} = \frac{d}{T}

v_{avg} = \frac{0.5 km}{1/3 h}

v_{avg} = 1.5 km/h

so average speed will be 1.5 km/h

4 0
3 years ago
Two objects with the same mass move with the same speed but in opposite directions. Compare their kinetic energies.
ddd [48]

Answer:

A.  Kinetic energies are equal.

Explanation:

The kinetic energy of the bodies will be equal since the mass and speed are the same.

Kinetic energy is the energy due to the motion of a body.

Mathematically;

           K.E  = \frac{1}{2} m v²

m is the mass

v is the speed

 The kinetic energy is a scalar quantity with no regard for direction.

5 0
3 years ago
Read 2 more answers
Write a method which prevents ice from melting quickly.​
Gnom [1K]

Answer:

blocks of ice are usually covered with cloth or sawdust while being stored

4 0
3 years ago
A wave that can travel through empty space?
timurjin [86]

Answer: B. Mechanical Waves

Explanation:

5 0
3 years ago
Read 2 more answers
A boat traveled at a constant speed for 5 hours, covering a total distance of 132.3 kilometers. how fast was it going?
Llana [10]
Velocity = distance (m) /time (s)

convert kilometers to metres (132300), substitute into formula.

convert hours to seconds (18000), substitute into formula. it becomes,

132300 divided by 18000 = 7.35 M/S 

always answer questions in the units given in the question.

to get m/s into km/h, multiply by 3.6, therefore it equals 24.46 km/h
4 0
3 years ago
Other questions:
  • A wave with a frequency of 190 hz and a wavelength of 28.0 cm is traveling along a cord. the maximum speed of particles on the c
    9·1 answer
  • On top of a cliff of height h, a spring is compressed 5m and launches a projectile perfectly horizontally with a speed of 75 m s
    5·1 answer
  • (I) Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.0 min to tur
    13·1 answer
  • Which of the following best represents an isolated system?
    10·1 answer
  • What is Newton's second law of motion?
    15·2 answers
  • Need help ASAP
    9·1 answer
  • A box is initially at rest on a horizontal, frictionless table. If a force of 10
    9·1 answer
  • The voltage between two points in a circuit is 4.2 V. If the resistance between
    11·2 answers
  • for every 120 joules of energy input a car waste 85 joules, find the useful energy output of the car?
    10·1 answer
  • During development, the cells in these organisms become specialized.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!