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velikii [3]
3 years ago
8

How do we calculate momemtum

Physics
1 answer:
Mice21 [21]3 years ago
7 0
<h2>momentum is the product of mass and velocity of an object. </h2>

<h2>To calculate momentum we just need to know about the mass of the object and it's velocity at which it is moving.</h2>

<h2>Momentum is denoted by the letter p. Velocity is denoted by the letter v.</h2><h2>Mass Is denoted by the letter m.</h2>

<h2>formula for momentum is given below.</h2>

p = mv

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
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Power is the rate that work is done or work per unit time.

So doing more work per unit time creates more power.


Power = Work / time

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3 years ago
The continental shelf, continental slope, and continental rise combine to form the
BartSMP [9]
The continental shelf, continental slope, and continental rise combine to form the <span>continental margin</span><span>.

</span>The continental shelf is the portion of the land mass that extends into ocean water.

Continental slope begins where the continental shelf ends. It does exactly what its name implies and serves as a boundary between the oceanic crust and the continental crust.

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3 years ago
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How does the number of valence electrons in atoms of metalloids explain why metalloids are semiconductors?
ivolga24 [154]

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They have three to six valence electrons, so they can lose or gain electrons.

Explanation:

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3 years ago
Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials are
BARSIC [14]

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6 0
3 years ago
A cart is initially moving at 0.5 m/s along a track. The cart comes to rest after traveling 1 m. The experiment is repeated on t
Anuta_ua [19.1K]

Answer:

D. 4 m

Explanation:

According to the work-energy theorem, the work done by the force acting on a body modifies its kinetic energy.

W=\Delta K\\W=K_f-K_i\\W=\frac{mv_f^2}{2}-\frac{mv_i^2}{2}

The car comes to rest after a given distance, so v_f=0. Recall the definition of work W=Fdcos\theta, here F is the constant force acting on the car, d is its traveled distance and \theta is the angle between the force and the displacement, since friction force acts opposite to the direction of motion \theta=180^\circ :

-Fd=-\frac{mv_i^2}{2}\\d=\frac{mv_i^2}{2F}

We have:

v_i'=1\frac{m}{s}\\v_i=0.5\frac{m}{s}\\v_i'=2vi

Thus:

d'=\frac{2m(v_i')^2}{2F}\\d'=\frac{2m(2v_i)^2}{2F}\\d'=4\frac{2mv_i^2}{2F}\\d'=4d\\d'=4(1m)\\d'=4m

6 0
3 years ago
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