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
Ivanshal [37]
3 years ago
8

A railroad car is pulled through the distance of 960 m by a train that did 578 kJ of work during this pull.

Physics
1 answer:
Wittaler [7]3 years ago
7 0

Answer:

<h2>602.08 N</h2>

Explanation:

The force supplied by the train can be found by using the formula

f =   \frac{w}{d}  \\

w is the workdone

d is the distance

From the question we have

f =  \frac{578000}{960}  \\  = 602.083333...

We have the final answer as

<h3>602.08 N</h3>

Hope this helps you

You might be interested in
When the tube is filled with mercury vapor, as in this case, a sharp drop in the collected current is observed when the accelera
adell [148]

Answer:

4.9 eV .

Explanation:

It is the case of discharge through mercury tube light . In it , mercury  atoms are exited due to which electrons are sent to higher energy  level . Here current drops to zero because electrons are excited to higher level . Energy are absorbed in quantised manner . Energy absorbed by electrons will be 4.9 eV . That means , difference in energy  between two energy level is  4.9 eV .

3 0
3 years ago
Cool air tends to...
IceJOKER [234]

Answer: C. Be more dense and flow under warm air.

Explanation:

think of a supermarket selling dairy products and when you open the fridge to get the milk, outside the supermarket is hot and inside the fridge is cold ice.

3 0
1 year ago
The mercalli scale is a scale from ________.
Mashcka [7]
<h2>Answer: 1 to 12. </h2>

<u>The Mercalli seismological scale is a scale of 12 degrees</u>, where 1 is very weak and 12 catastrophic.

This scale owes its name to the Italian physicist Giuseppe Mercalli and was developed to assess the intensity of earthquakes through the effects and damages caused to different structures.

This means the <u>Mercalli scale measures how strong a earthquake has been by </u><u>its consequences and not by its magnitude</u><u>, therefore it is based on </u><u>empirical observations.</u>

6 0
3 years ago
An Air Force plane lands with a velocity of 125 m/s and accelerates at a maximum rate of -6.5 m/s^2.
Alisiya [41]

Answer:

a) 19.2 s

b) No

Explanation:

Given:

v₀ = 125 m/s

a = -6.5 m/s²

v = 0 m/s

a) Find: t

v = at + v₀

(0 m/s) = (-6.5 m/s²) t + (125 m/s)

t ≈ 19.2 s

b) Find: Δx

v² = v₀² + 2aΔx

(0 m/s)² = (125 m/s)² + 2 (-6.5 m/s²) Δx

Δx ≈ 1200 m

An aircraft carrier that's 850 meters long won't be long enough.

8 0
3 years ago
A skier with a 65kg mass skies down a 30 degree incline hill. The coefficient of friction is 0.1. a. Draw a free body diagram. b
djyliett [7]
B is the answer! Because no one would be pushing the rock all the way down the hill it would just go down by itself by rolling!!



Hope i helped plz mark as brainlist and 5 star'!
6 0
3 years ago
Other questions:
  • In a wave, what do you call the difference from crest to crest or trough to trough
    11·1 answer
  • How is the weight of an object in a spaceship near the moon related to the distance that the spaceship is from the moon?
    11·1 answer
  • Phileas Fogg, the character who went around the world in 80 days, was very fussy about his bathwater temperature. It had to be e
    8·1 answer
  • Explain why do conductors and insulators are both required to construct electrical wiring in your home
    10·1 answer
  • If a bicyclist is traveling at 40.0 km/hr for 2.5 hrs. How far does he travel?
    10·2 answers
  • Using a dish-shaped mirror, a solar cooker concentrates the sun's energy onto a pot for cooking. A cooker with a 1.2-m-diameter
    8·1 answer
  • Please write ONE complete sentence describing the relationship between Kinetic Energy and Gravitational Potential Energy in a sy
    13·1 answer
  • 100!!! POINTS PLZ HELPPPPPP
    10·1 answer
  • Nikki has a momentum of 45 Kilogram meters per second and a mass of 30 Kilograms. What is her velocity?
    12·1 answer
  • A 70 kg person walks 200 m in 4 seconds. What is their momentum?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!