Law of conservation of momentum

Answers

Answer 1

Answer: It says that momentum cannot be created or destroyed. Momentum just passes through systems as opposed to just disappearing in thin air. Momentum can be changed to heat or energy.

Hope this helps :)

Answer 2

Answer: What is the Law of Conversation of Momentum?
The law of conservation of momentum states that the total momentum of a closed system does not change. This means that when two objects collide the total momentum of the objects before the collision is the same as the total momentum of the objects after the collision.
Total momentum meansthe momentum of object 1 plus the momentum of object 2.Object 1 might not have the same momentum before and afterthe collisionbut the amount of momentum object 1 gains from the collisionis the same as the amount of momentum object 2 losesso the total momentum remains the same whether the collision is elastic or inelastic.The total momentum is also the same before and after an explosion.

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What happens when an organism is removed from a food chain?

Answers

The food chain will collapse with the decreases and increases of other organisms caused by the removed organism.

There will be far-reaching effects. If for example, the producer is removed, the consequences could be dire.

Scientific Inquiry incorporates many scientific methods.
A) true
B) false

Answers

True fhfhhj ufg ffgh fdh fhgg f jc fg gt

A disk made of many small particles of Rock and ice in orbit around a planet is called

Answers

The correct answer is ring. A disk made of many small particles of rock and ice in orbit around a planet is called ring. The rings of the planet Saturn is considered to be the most extensive planetary rings system in the Solar System.

Two point charges are separated by 6 cm. The attractive force between them is 20 N. Find the force between them when they are separated by 12 cm. (Why can you solve this problem without knowing the magnitudes of the charges

Answers

The force between the two point charges is "5 N".

Force and magnitudes:

The total of almost all of the forces operating on an item is referred to as the magnitude of force. When some of the forces operate in the same direction, this same magnitude rises. Whenever forces occur in opposite directions around an item, the amount of something like the force diminishes.

Distance between charges, d = 6 cm

Attractive force, F = 20 N

Separated, d' = 12 cm

We know the formula,

F = $k (q_1q_2)/(d^2)$

or,

F $\propto (1)/(d^2)$ ...(Equation 1)

New force will be:

F' $\propto (1)/(d'^2)$ ...(Equation 2)

From "Equation 1" and "Equation 2", we get

→ $(F)/(F') =(d'^2)/(d^2)$

By substituting the values,

$(20)/(F') =(12^2)/(6^2)$

$(20)/(F') =(144)/(36)$

F' = 5 N

Thus the approach above is appropriate.

Find out more information about force here:

brainly.com/question/388851

Answer:

The force between them when they are separated by 12 cm is 5 N.

Explanation:

Distance between two point charges, d = 6 cm

The attractive force between them is 20 N, F = 20 N

Let F' is the force between them when they are separated by 12 cm, d' = 12 cm

The force between point charges is given by the formula as :

$F=k(q_1q_2)/(d^2)$

$F\propto (1)/(d^2)$ ........(1)

New force,

$F'\propto (1)/(d'^2)$ ............(2)

From (1) and (2) :

$(F)/(F')=(d'^2)/(d^2)\n\n(20)/(F')=(12^2)/(6^2)\n\nF'=5\ N$

So, the force between them when they are separated by 12 cm is 5 N. Hence, this is the required solution.

17. Alyssa just bought a new set of string lights for her bedroom. She decided to use the lights to outline her mirror. The lights are on a series circuit. If Alyssa were to buy more lights so that they can go all around her bedroom, what will happen to following quantities?:a. The resistance of the entire circuit will (increase/decrease).
b. The current through each bulb will (increase/decrease).
c. The voltage available to each bulb will (increase/decrease).

Answers

a. The resistance will increase

b. The current will decrease

c. The voltage through each bulb will

Explanation:

a. For a series of resistors, the equivalent resistance is given by

$R=R_1+R_2+...+R_n$

so, we see that adding more resistors in series, will increase the total resistance.

b. In a series circuit, the current through each bulb is the same for each bulb, and it is equal to the current flowing in the circuit, which is given by Ohm's law

$I=(V)/(R)$

where V is the voltage supplied by the battery and R the total resistance of the circuit. Since the voltage provided by the battery, V, does not change, while the total resistance R increases, the current I will increase.

c. The voltage through each bulb is given by

$V=R_i I$

where R_i is the resistance of the individual resistor and I is the current. Since the value of R_i does not change, while I (the current) has decreased, the voltage available to each bulb, V, will decrease.

If you perform 40 J of work lifting a 10-N box from the floor to a shelf, how high is the shelf?

Answers

the shelf is four meters high

four meters feet i believe because 10n ÷ 40j = 4m

Other Questions

1. What is meant by half-life?The time for a radioactive sample to reduce to half of its radioactivity. The time for half of a radioactive sample to decay into new substances. The time for a radioactive sample to reduce to half of its original mass. The time for half of a radioactive sample to lose its radioactivity. 4. The isotope uranium-232 has a half-life of 68.9 years. How long will it take for 60% (N/N0 = 0.60) of the original sample to decay? 5.8 years 50.8 years 93.5 years 407 years 5. The isotope barium-133 has a half-life of 10.51 years. Of a 10 kg sample, how much will remain after 50 years? 0.37kg 4.53kg 8.64kg 270kg 6. A piece of bone from a horse found in an archaeological site is dated using carbon-14 dating. It is found that the bone has 78% of the carbon-14 that it would have when the horse was alive. Approximately how long ago did the horse die? 900 years ago 2,000 years ago 14,100 years ago 35,800 years ago 7. At an physics research facility 0.0027 kg of a new isotope is made in an atomic collider. After 6 seconds, 0.00147 kg remain. What is the half-life of the isotope? 0.25 seconds 5.26 seconds 6.84 seconds 500 seconds

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Kelly carried a box weighing 10 N the 200 meters from his car to his new house. George took the box from Kelly and carried it up the 3 meter tall flight of stairs. Who did more work?

If the pressure in a gas container that is connected to an open-end U-tube manometer is 116 kPa and the pressure of the atmosphere at the open end of the tube is 752 mm Hg, the level of mercury in the tube will a. be 870 mm higher in the arm open to the atmosphere. b. be 870 mm higher in the arm connected to the gas cylinder. c. be 118 mm higher in the arm connected to the gas cylinder. d. be 118 mm higher in the arm open to the atmosphere.