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
rodikova [14]
2 years ago
12

4. Increasing the mass of this freight train will

Physics
1 answer:
muminat2 years ago
8 0

Answer: #1. increase. #2. decrease #3. speed.

Explanation:

You might be interested in
Anyone.... help with this two questions...​
PSYCHO15rus [73]

Answer:

what is the question

]

Explanation:

w

7 0
2 years ago
Read 2 more answers
A box slides down a 31° ramp with an acceleration of 0.99 m/s2. Determine the coefficient of kinetic friction between the box an
tino4ka555 [31]

Answer:\mu=0.48

Explanation:

Given

inclination \theta =31^{\circ}

Acceleration of object=0.99 m/s^2

Now using FBD

mg\sin \theta -f_r=ma

mg\sin \theta -\mu mg\cos \theta =ma

a=g\sin \theta -\mu g\cos \theta

0.99=5.04-\mu 8.4

\mu 8.4=4.057

\mu =0.48

7 0
3 years ago
What science projects should I do? Please just choose something basic!
Romashka-Z-Leto [24]
How does the different type of music such as classic, hiphop, or rock affect the human mind
4 0
2 years ago
The acceleration due to gravity on the moon is 1.6 m/s2. What is the gravitational potential energy of a 1200-kg lander resting
Monica [59]
Gravitational potential energy<span> is </span>energy<span> an object possesses because of its position in a </span>gravitational<span> field. </span><span>The equation for </span>gravitational potential energy<span> is GPE = mgh. 

GPE = 1200(1.6)(350) = 672000 J

Hope this answers the question. Have a nice day.</span>
8 0
3 years ago
Read 2 more answers
The speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. an ostrich is run
Orlov [11]
Velocity of an object is its rate of change of the object's position per interval of time. Velocity is a vector quantity which means that it consists of a magnitude and a direction. Magnitude is represented by the speed and the direction is represented by the angle. To determine the velocity components, we use trigonometric functions to determine the angle of the components. For the north component we, use the sine function while, for the west component, we use the cosine function. We calculate as follows:
north velocity component = (16.8 m/s) (sin 54°) = 16.4 m/s
<span>west velocity component = (16.8 m/s) (cos 54°) = 3.49 m/s</span>



6 0
3 years ago
Other questions:
  • The diagram shows a trace of a wave on a cathode-ray oscilloscope.
    14·1 answer
  • What kind of energy is stored when you squeeze a mattress?
    7·2 answers
  • Chen is testing the friction of three surfaces. He pushes the same ball across three different surfaces with the same force and
    14·1 answer
  • Ian walks 2km to his best friends house, the. Walks .5km to the library. Then makes a 2.5 km walk home. The entire walk took 3 h
    6·2 answers
  • O lugar mais fundo do mar é a Trincheira de Mariana, localizada a 11 km de profundidade. Essa estrutura imensa está localizada n
    6·1 answer
  • 0.6% of 36 = ? Please answer today This is due tomorrow!,​
    15·1 answer
  • Why does the moon appear dark from space?
    11·2 answers
  • Un diapasón vibra a 140 [Hz] y la onda emitida por él se propaga con una rapidez de 340 m/s.Considerando lo anterior, se puede a
    13·1 answer
  • Of the 50 U.S. states, 4 have names that start with the letter W.
    14·2 answers
  • Camille knows that range of motion is very important. She is designing a weekly exercise program and is not sure where flexibili
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!