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
lora16 [44]
3 years ago
10

Why does a rocket have such great momentum even if it is moving at a slow speed?

Physics
2 answers:
Artist 52 [7]3 years ago
4 0

Answer:

Rockets provide a wonderful example of Momentum Conservation. As momentum in one direction is given to the rocket's exhaust gases, momentum in the other direction is given to the rocket itself.

Explanation:

First, think of two masses connected by a lightweight (massless!) compressed spring. When the two spring apart, conservation of momentum tells us the Center of Mass remains where it was (or moving as it was).

PTot,i = p1i + p2i = 0 + 0 = 0

PTot,f = p1f + p2f = PTot,i = 0

p1f + p2f = - m1 v1f + m2 v2f = 0

Marianna [84]3 years ago
3 0

Momentum of an object is the product of two quantities:

Momentum = (the object's mass) times (the object's speed)

If one of these quantities is small, the momentum can still be large if the other quantity is huge.

A rifle bullet is a great example of this idea.  The bullet has a small mass ... maybe only a few grams ... but it gets shot out of the rifle with such a high speed that when you multiply (mass)x(speed), the bullet has enough momentum to knock a big person down off his feet.

You might be interested in
a car with a mass of 100 kg is stopped on the side of the road after getting a flat tire. the two people that were riding in the
notsponge [240]

Answer:

Please mark me brainliest and thank me and rate me

3 0
3 years ago
The power is inversely proportional with time
trapecia [35]

Answer:

True

Explanation:

Given that Power whose unit is Watt equates to one joule of work per second. It implies that Power is directly proportional to the work done and inversely proportional to the time to do the work.

Therefore, in this case, the right answer to the question is that it is TRUE that the power is inversely proportional with time

8 0
3 years ago
The electric force between two charges A. increases with distance between the charges B. increases if either one of charges gets
beks73 [17]

Answer:

Option (A) , (b) and (d) are correct option

Explanation:

According to Coulomb's law electric force between two charges is given by

F=\frac{1}{4\pi \epsilon _0}\frac{q_1q_2}{r^2}

From the relation we can say that force is directly proportional to magnitude of charges and inversely proportional to distance between them '

So if we increase the distance then force will decrease

Increase if any of the charge get larger

If force is attractive then both the charge will be of different sign and is force is repulsive then both the charges of same sign

From above conclusion we can say that (a), (b) and (d) are correct option

6 0
3 years ago
Help me please Which of the following statements best describes the atoms and molecules that make up a glass
Nataliya [291]

Answer:

The correct option is;

The atoms and molecules of the liquid water are moving, while the atoms and molecules of the glass are not moving

Explanation:

Matter that exist in the liquid or gaseous state consist of molecules that move freely about in the entire containing medium for gas, while the molecules move freely  in the portion of the container occupied by the fluid in the case of liquid fluids

However, the molecules of a solid are fixed within the current shape of the solid and are only free to vibrate within a fixed location and the allow the passage of subatomic particles such as electrons

As such, the glass cup being a solid, consists of molecules fixed in space, while the liquid water consists of molecules which can translate within the portion of the volume of the glass filled with the water.

7 0
3 years ago
Is it illegal to attempt gerrymandering​
IRINA_888 [86]

Explanation:

The US Supreme Court has affirmed in Miller v. Johnson (1995) that racial gerrymandering is a violation of constitutional rights and upheld decisions against redistricting that is purposely devised based on race. However, the Supreme Court has struggled as to when partisan gerrymandering occurs (Vieth v.

8 0
3 years ago
Other questions:
  • Una manguera de agua de 1.3 cm de diametro es utilizada para llenar una cubeta de 24 Litros. Si la cubeta se llena en 48 s. A) ¿
    14·1 answer
  • A scientist’s curiosity is a legitimate driving force of scientific endeavor
    14·1 answer
  • A temperature of 20°C is equal to <br> °F.
    9·2 answers
  • Which statement correctly describes the differences between positive and negative acceleration?
    12·1 answer
  • free p-o-i-n-t-s if you done the last one dont do this one dont do this one yet ill tell you when you can do it bc im trying to
    14·1 answer
  • List the three properties of a thermometer​
    9·1 answer
  • Shrinking Loop. A circular loop of flexible iron wire has an initial circumference of 167 cm , but its circumference is decreasi
    12·1 answer
  • PLEASE HELP!!! 20 PIONTS!!!
    8·1 answer
  • If a body is accelerating m change the velocity of 2 metre per second square when it was acted by five hundred Newton of force t
    11·2 answers
  • What is the distance between lines on a diffraction grating that produces a second-order maximum for 760-nm red light at an angl
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!