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
Semenov [28]
4 years ago
8

two idential train engines are parked on parallel track. one engine has ten cars attached and the other has no cars attached. ea

ch engine exerts the same net force. which allow sthe train to overcome static friction. which engine will be able to accelerate more
Physics
1 answer:
nikklg [1K]4 years ago
6 0

Answer:

The second engine with no cars will accelerate more.

Explanation:

Since the engines are identical so they hacve the same mass. The first engine has 10 cars attached which adds more mass to it whereas second engine has no cars attached.

Therefore second engine is lighter in mass than the first one.

<u>We know from the Newton's second law of motion:</u>

F=m.a

\therefore a=\frac{F}{m}

Now, according to question both the engines exert same force for moving.

We see that :

a\propto\frac{1}{m}

So more is the mass, lesser is the acceleration, hence the second engine with no cars will accelerate more.

You might be interested in
You spy on an anchor on the bottom of a lake. What is the direction and amount of force the water exerts on it: a) zero
vaieri [72.5K]

Answer:

c) up, less than the weight of the anchor

Explanation:

An object floats when the weight of the water the object displaces is equal to the weight of the object. In this case the weight of the anchor and the weight of the water it displaces is not the same so it sinks. Buoyancy is the force that acts on body when it is in water.

When buoyancy is less than the force that the object is generating due to gravity the object sinks. Buoyancy always acts up.

5 0
3 years ago
Angular oscillation of the slotted link is achieved by the crank OA, which rotates clockwise at the steady speed N = 118 rev/min
Leni [432]

Answer:

Angular velocity will be 65.3 rad/s

7 0
3 years ago
Read 2 more answers
You're staring at a traditional clock for 1 hour. after 1 hour, what is the angular displacement of the second hand? the minute
Anvisha [2.4K]
<span>During the hour, the second hand will have traveled a full 360 degrees times 60 for a total displacement of 21600 degrees or 21600*pi/180 = 120 pi radians, or approximately 376.99 radians. Also during that hour, the minute hand will have gone around a full 360 degrees, or 360*pi/180 = 2 pi radians, or approximately 6.28 radians. And finally, the hour hand will have gone 360/12 = 30 degrees or 30*pi/180 = pi/6 radians, or approximately 0.52 radians.</span>
6 0
3 years ago
In the two-slit experiment, for the condition of bright fringes, the value of m = +2 corresponds to a path difference of λ.
melisa1 [442]

Answer:

False

Explanation:

We know that if path difference is even multiple of wavelength then bright fringes are formed and if path difference is odd multiple of wavelength then dark fringes are formed .

For bright fringes

Path difference Δx = m λ

m = 0 , 2 , 4 , 6.......

If m = 2 then the path difference will be

Δx = 2 λ

therefore the above statement if false.

False

7 0
3 years ago
36 The height of a 30-story building is approximately
ohaa [14]
An approximation used to measure building height is 10 feet per building level.

Converting from feet to meters using the equation:
1 ft = 0.3048m
10 ft = 3.048m

Multiplying that by 30 storeys, we get:
3 x 3.048m = 91.44m, which is near the answer of (3) 10^2 m or 100m.
5 0
4 years ago
Other questions:
  • When you are finished with the experiment, complete the following data analysis and record your answers in the Essay box below.
    13·1 answer
  • An object whose mass is 100 lb falls freely under the influence of gravity from an initial elevation of 600 ft above the surface
    13·1 answer
  • What is the molar solubility of magnesium fluoride in a solution that is 0.40 m f− ions? the ksp of mgf2 is 6.4 × 10−9.?
    13·1 answer
  • Why did the alpha particles bounce back during Rutherford's experiments? They hit other alpha particles. They hit electrons. The
    15·2 answers
  • Which of the following statements about the resistsance of a wire is correct? Select THREE answers.
    11·1 answer
  • A spelunker is surveying a cave. She follows a passage 180 m straight west, then 290 m in a direction 45∘ east of south, and the
    6·1 answer
  • What is point c called?
    7·2 answers
  • What is Newton’s third law?
    8·1 answer
  • What happens when an object becomes cold?
    12·1 answer
  • When an object is raised vertically, work is done against __________. What one word completes the sentence?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!