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
Kaylis [27]
3 years ago
14

Which best describes the current atomic theory?

Physics
2 answers:
ivolga24 [154]3 years ago
6 0
Choice-C is a correct statement.
taurus [48]3 years ago
5 0

C. it is the most powerful explanation scientists have to offer at this time. I am 100% right, I just finish the test and got it right.

You might be interested in
According to the kinetic molecular theory, the pressure of a gas in a container will increase if the
tangare [24]

Answer:

According to the kinetic molecular theory, the pressure of a gas in a container will increase if the temperature increases.

Explanation:

If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure

8 0
3 years ago
C: Calculate the kinetic energy of a car with a mass of 1563 kilograms that is traveling at 42 kilometers per hour.
kkurt [141]

Hello!

C. KE ≈ 9120.105 J

D. m = 151.45 kg

Question C:

Calculate kinetic energy using the formula:

KE = \frac{1}{2}mv^{2}

Substitute in the given mass. We have to convert kilometers to meters in order to solve.

\frac{42km}{1hr} * \frac{1hr}{3600sec} *\frac{1000m}{1km} = 11.67 m/s

Use the equation above:

KE = 1/2(1563)(11.67)

KE ≈ 9120.105 J

Question D:

Plug in the given Kinetic Energy and velocity to solve. Convert kilometers/hour to meters/second:

\frac{7km}{1hr} * \frac{1hr}{3600sec} *\frac{1000m}{1km} = 1.94 m/s

KE = \frac{1}{2}mv^{2}

285 = 1/2(m)(1.94²)

570 = (1.94²)m

151.45kg = m

6 0
3 years ago
What is the average speed if an object travels 200 km in 5 hours
melamori03 [73]

Answer:

40km per hour

Explanation:

8 0
3 years ago
The horse on a carousel is 3.5m from the central axis.A. If the carousel rotates at 0.13 rev/s , how long does it take the horse
Kitty [74]

Answer:

a. 15.4 seconds

b. 0.455 m/s

Explanation:

a. The carousel rotates at 0.13 rev/s.

This means that it takes the carousel 1 sec to make 0.13 of an entire revolution.

This means that time it will take to make a complete revolution is:

1 / 0.13 = 7.7 seconds

Therefore, the time it will take to make 2 revolutions is:

2 * 7.7 = 15.4 seconds

b. Let us calculate the linear velocity. Angular velocity is given as:

\omega = v / r

where v = linear velocity and r = radius

The radius of the circle is 3.5 m and the angular velocity is 0.13 rev/s, therefore:

0.13 = v / 3.5

v = 3.5 * 0.13 = 0.455 m/s

Linear velocity is 0.455 m/s

8 0
3 years ago
True or False: Erosion is the process that causes the removal of material by moving water, ice, and wind.
I am Lyosha [343]
True is the answer :)
8 0
3 years ago
Other questions:
  • Calculate the acceleration of a 25 kg object that has move the force of 300 n
    12·1 answer
  • Compare positive and negative feedback mechanisms.
    5·2 answers
  • What type of energy is it when rain falls?
    7·1 answer
  • A car traveling 75 km/h slows down at a constant 0.50 m/s2 just by "letting up on the gas." calculate (a) the distance the car c
    11·1 answer
  • What would the world be like without energy?
    15·1 answer
  • Which of the following is true? *
    6·1 answer
  • Can someone plz help me with this it be appreciated I’m confused
    15·1 answer
  • Un atleta que recorre 100 m en 12 s
    5·1 answer
  • 25.Figure 22.22 shows a plot
    15·1 answer
  • A car of mass 1000 kg is heading east at 25 m/s. It collides with a car of mass 12000 kg heading north at 30 m/s. When the cars
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!