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
Margarita [4]
3 years ago
14

A locomotive approaches its next stop and accelerates at -0.12 m/s^2, coming to a complete stop in 30 seconds. This motion could

best be described as
positive velocity & positive acceleration
negative velocity & negative acceleration
positive velocity & negative acceleration
negative velocity & positive acceleration
Physics
1 answer:
Masja [62]3 years ago
4 0

Answer:

<em>Answer: positive velocity & negative acceleration</em>

Explanation:

<u>Accelerated Motion</u>

Both the velocity and acceleration are vectors because they have magnitude and direction. When the motion is restricted to one dimension, i.e. left-right or up-down, the direction is marked with the sign according to some preset reference.

The locomotive is moving at a certain speed with a (so far) unknown sign but the acceleration has a negative sign. Since the locomotive comes to a complete stop it means the velocity and the acceleration are of opposite signs.

Thus the velocity is positive.

Answer: positive velocity & negative acceleration

You might be interested in
Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150
Sever21 [200]

Answer:2.89\approx 2.9^{\circ}C/s

Explanation:

Given

Power\left ( P\right )=150 MW

mass of core\left ( m\right )=1.60\times 10^5 kg

Average specific heat \left ( C\right )=0.3349 KJ/kg^{\circ}C

And rate of increase of temperature =\frac{\mathrm{d}T}{\mathrm{d} t}

Now

P=mc\frac{\mathrm{d}T}{\mathrm{d} t}

150\times 10^6=1.60\times 10^5\times 0.3349\times \frac{\mathrm{d}T}{\mathrm{d} t}

Thus \frac{\mathrm{d}T}{\mathrm{d} t}=[tex]\frac{1.60\times 10^5\times 0.3349}{150\times 10^6}

\frac{\mathrm{d}T}{\mathrm{d} t}=2.89\approx 2.9^{\circ}C/s

6 0
4 years ago
What is the correct order of the structures of the motor neuron?
Ulleksa [173]
Dendrites, the cell body, axon, terminal branches of the axon
7 0
3 years ago
How polar bear can survive in the polar region<br>​
ladessa [460]

Answer:

Hey mate.....

Explanation:

This is ur answer...

<em>Polar bears are well adapted for survival in the Arctic. Their adaptations include: a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold.</em>

Hope it helps!

Brainliest pls!

Follow me! ◇

7 0
3 years ago
The town hall building is situated close to Boojho’s house. There is a clock on the top of the town hall building which rings th
KiRa [710]

Answer:

At night we experience quietness more. At this time, sounds of object will be heard more clearer

5 0
3 years ago
What would happen if the pilot did not keep the airplane "trimmed"
Mademuasel [1]

Answer:

In explanation

Explanation:

Pilots who dont use trim often like the feeling of holding constant back pressure because The heavier control forces makes it more difficult to over-control the airplane inside the turn, so it gives the sense of a more stable flight

3 0
3 years ago
Other questions:
  • A unique type of basketball is played on the planet zarth. During the game, a player flies above the basket and drops the ball i
    12·2 answers
  • Find the magnitude of the resultant force and the angle it makes with the positive x-axis. (Let |a| = 22 lb and |b| = 16 lb. Rou
    9·1 answer
  • Three cars (car F, car G, and car H) are moving with the same speed and slam on their brakes. The most massive car is car F, and
    9·1 answer
  • The voltage applied across a given parallel-plate capacitor is doubled. How is the energy stored in the capacitor affected?
    6·1 answer
  • What is the great egg drop experiment about?
    13·2 answers
  • The Moon has a radius of 1.7 × 106 m and a mass of 7.3 × 1022 kg. Find the gravitational field on the surface of the Moon.
    8·1 answer
  • A potted plant falls from a window sill and is gaining speed. which one of the following statements is true of the plant?
    9·1 answer
  • to what height will a 250g soccer ball rise to if it is kicked directly upwards at 8 meters per second​
    12·1 answer
  • 100!!! POINTS PLZ HELPPPPPP
    10·1 answer
  • Define efficiency. class -8 ​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!