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
GarryVolchara [31]
3 years ago
6

Does displacement depend on direction and what is it's formula?

Physics
1 answer:
kicyunya [14]3 years ago
7 0
'<em>Distance</em>' is how far you walk on your afternoon walk, while you cut across the park, go two blocks out of your way to visit a friend, and cross the street several times in both directions to avoid some big-looking dogs. Every step counts for distance.  Distance only has a size but no direction, because the direction could change a hundred times during the trip. And from the time you leave home until you return home, the distance could be 5 miles or more.   

'<em>Displacement</em>' is very different.  Displacement is just the straight-line distance between the starting point and the end point, <em>regardless of the route</em> that was
followed between them.  It has a size ... the distance between them, and it also has a direction ... the direction from start to finish.  And if you start out from home and return home, then your displacement for that trip is zero, because there's <em>no</em> straight-line distance from the starting point to the end point.
You might be interested in
Find the energy in Joules required to lift a 55.0 Megagram object a distance of 500 cm.
fredd [130]

Energy to lift something =

               (mass of the object) x (gravity) x (height of the lift).

BUT ...

This simple formula only works if you use the right units.

Mass . . . kilograms
Gravity . . . meters/second²
Height . . . meters

For this question . . .

Mass = 55 megagram = 5.5 x 10⁷ grams = 5.5 x 10⁴ kilograms

Gravity (on Earth) = 9.8 m/second²

Height = 500 cm  =  5.0 meters

So we have ...

Energy = (5.5 x 10⁴ kilogram) x (9.8 m/s²) x (5 m)

            =  2,696,925 joules .

That's quite a large amount of energy ... equivalent to
straining at the rate of 1 horsepower for almost exactly an
hour, or burning a 100 watt light bulb for about 7-1/2 hours.

The reason is the large mass that's being lifted.
On Earth, that much mass weighs about 61 tons.

7 0
3 years ago
If a cross country runner covers a distance of 347 meters in 134 seconds what is her average speed?
a_sh-v [17]
347÷134=2.589552239 meters per second

2.589552239×60= 155.3731343 meters per hour

155.3731343 meters per hour= 0.096544389701642 miles per hour

hopefully this was right.
6 0
4 years ago
Astronomers discover a bright X-ray source in the Milky Way. They see no counterpart in the optical bands, but it has another st
VladimirAG [237]

Answer:

a. a black hole

Explanation:

X-ray emission from the central degrees of the Milky Way Bright X-ray emission traces the coherent edge brightened shell-like feature, dubbed the northern chimney, located north of Sgr A* and characterized by a diameter of about 160 pc. On the opposite side, the southern chimney appears as a bright linear feature. Bright X-ray emission is observed at high latitude

8 0
3 years ago
Help please :pensive:
tino4ka555 [31]

Answer:

0m/s²

Explanation:

Given parameters:

Initial velocity of the boat = 8m/s

Final velocity  = 8m/s

Time taken  = 4s

Unknown:

Acceleration of the boat = ?

Solution:

Acceleration is the rate of change of velocity with time.

It is mathematically expressed as;

        A = \frac{v - u}{t}

A is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

    Insert the parameters and solve;

  A = \frac{8-8}{4}   = 0m/s²

6 0
3 years ago
Need help really fast ! can give brainliest if correct :&gt; thanks &lt;3
Vlada [557]

Answer:

2. Move faster

Explanation:

Because you lighten the weight and pushed at the same speed it is easier to push the 400-grams than the 800-grams.

Have a wonderful day!

8 0
3 years ago
Read 2 more answers
Other questions:
  • An underwater scuba diver sees the Sun at an apparent angle of 43.0° above the horizontal. What is the actual elevation angle of
    10·1 answer
  • What is the average kinetic energy in joules of hydrogen atoms on the 5500ºc surface of the sun?
    7·1 answer
  • If the work output of a machine equals the nonzero work input, then _____ is equal to 0.
    13·1 answer
  • Has scientific knowledge changed over time?
    8·1 answer
  • Choose the sources of heat which create metamorphic rocks geothermal gradien extrusive magma intrusive magma
    5·2 answers
  • What is transferred by all types of waves? A. energy B. electrons C. heat D. matter
    8·2 answers
  • A school bus moves past a parked car at a speed of 30 km/hr. Which of the following BEST describes the observation made by a pas
    7·1 answer
  • Where is the electric field closest to uniform? inside a circle described by a point charge at its center between parallel plate
    15·1 answer
  • When sinkholes expand, creating isolated towers of rock, what is occurring?
    10·2 answers
  • Compared to yellow light, orange light has
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!