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
vazorg [7]
3 years ago
12

A train moving at a constant speed on a surface inclined upward at 10.0° with the horizontal travels a distance of 400 meters in

5 seconds. Calculate the vertical velocity component of the train during this time period. A. 41.10 meters/second B. 19.23 meters/second C. 13.89 meters/second D. 41.70 meters/second E. 78.78 meters/second
Physics
2 answers:
larisa86 [58]3 years ago
8 0

Answer:

C. 13.89 meters/second

Explanation:

If the velocity of the train is v=s/t, where s is the distance and t is time, then v=400/5=80m/s. To get the vertical component of the velocity we need to multiply the velocity v with a sin(α): Vv=v*sin(α), where Vv is the vertical component of the velocity and α is the angle with the horizontal. So:

Vv=80*sin(10)=80*0.1736=13.888 m/s. 

So the vertical component of the velocity of the train is Vv=13.888 m/s.

kakasveta [241]3 years ago
7 0

Answer:

C.

13.89 meters/second

Explanation:

You might be interested in
Lena is studying the properties of light in a laboratory. If she increases the amplitude of the light waves she is studying, wha
zaharov [31]

Answer:

A brighter light

Explanation:

Light waves travel through space via light particles called photons. This particles have in essence 2 properties: 1. Amplitude and 2.Frequency. The first one has to do with the intensity of light we see and the second one has to do with the energy (color). If we change only the amplitude, we will see a lighter or darker light and will keep the same color in all amplitude changes. But if we modify the frequency, the intensity will keep the same and the color changes as we move into the light spectrum.

Thus, increasing the amplitude, we will perceive a brigher light.

4 0
3 years ago
Which of these are a covalent compound?
nikdorinn [45]
C is a non-metal and so is O. So the answer is CO
8 0
3 years ago
A train travels 60 miles per hour for 3 hours and then 45 miles per hour for 2 hours. What is the train’s average speed in miles
eimsori [14]

Answer:

Explanation:

Average speed is given by

Total distance/ total time taken

So we need to know the distance in the first travel

Then

First part

Speed=60miles/hour

Time 3hours

Distance = speed × time

Distance = 60×3

Distance = 180 miles

Second part

Speed 45mile/hour

And time is 2hours

Distance = speed × time

Distance = 45× 2

Distance = 90miles

So total distance travelled for both cases is 90+180=270miles

And total time is 5hours

Then,

Average speed = total distance/total time

A.S=270/5

A.S= 54miles/hour

5 0
3 years ago
Read 2 more answers
What is the atomic mass of Chlorine?
almond37 [142]
17 is the atomic mass of chlorine
8 0
3 years ago
Read 2 more answers
Find the components of vtot along the x and y axes in Figure 3.25, where = 23.0° and vtot = 7.56 m/s.
Romashka [77]

The component of the total velocity in the x - direction is 6.96 m/s.

The component of the total velocity in the y - direction is 2.95 m/s.

<h3>Component of the velocity in x direction </h3>

The component of the total velocity in the x - direction is calculated as follows;

v(x) = vtot cosθ

where;

  • vtot is total velocity
  • v(x) is velocity in x direction

v(x) = 7.56 x cos(23)

v(x) = 6.96 m/s

<h3>Component of the velocity in y - direction</h3>

v(y) = vtot sinθ

v(y) = 7.56 x sin(23)

v(y) = 2.95 m/s

Learn more about component velocity here: brainly.com/question/24681896

#SPJ1

7 0
2 years ago
Other questions:
  • a wave in a rope is traveling at 6 m/s and at a frequency of 2 Hz. what is the wavelength of the wave producced
    13·1 answer
  • What electrical appliance was invented in 1910
    9·2 answers
  • The image above shows a block pulled across a table. The spring scale which measures in Newtons, reads the force resisting the m
    10·2 answers
  • Which of the following terms refers to the flow of energy heat and work?
    10·1 answer
  • 1) How is chemical energy<br> transformed into potential<br> energy?
    9·1 answer
  • In the school cafeteria, a trouble-making child blows a 12.0 g spitball through a 25.0 cm straw. The force (F) in Newtons, of hi
    14·1 answer
  • .
    12·1 answer
  • Can anyone please help meee!!!​
    5·1 answer
  • 1. A wave traveling at 375 m/s has a wavelength of 4.2 meters. What is the frequency of the wave?​
    11·1 answer
  • When will you say a body is in a) uniform acceleration (b) non uniform acceleration
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!