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Kaylis [27]
3 years ago
15

Ist Law: a object continues in a state of

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
6 0

Answer:

Explanation:

This image is the example of Newton's first law of motion because:

As per Newton's first law, football will remain in the state of rest until a player applies an external force by kicking the ball.

And the ball will keep on moving until unless the net of a goal post exerts the external force to stop the ball.

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What three quantities does Newton’s 2nd law relate?
Yuki888 [10]

Answer:

force, mass, and acceleration

Explanation:

According to Newton's 2nd law, the acceleration of an object depends on the net force and the mass of the object. The equation for the 2nd law is Force = mass * acceleration.

7 0
3 years ago
a train travelled from city A to city B. For the first 14 hours, it travelled at an average speed of 120 km/h for the next 10 ho
saveliy_v [14]

Answer:

<h2> 107.5 </h2>

Explanation:

<h2><em>120 x 14= 1680 </em></h2><h2><em> </em></h2><h2><em>90 x 10= 900 </em></h2><h2><em> </em></h2><h2><em>Now you add 1680+900= 2580 </em></h2><h2><em> </em></h2><h2><em>Then you divide the distance (2580) between the speed (14+10) </em></h2><h2><em> </em></h2><h2><em>2580/24= 107.5</em></h2>
8 0
2 years ago
An air-filled capacitor consists of twoparallel plates, each with an area of 7.60 cm2,separated by a distance of 1.90 mm.A 16.0
Svetradugi [14.3K]

Answer:

(A)8,421.1 V/m

(B) 3.54 x 10^{-12} F

(C)  53.1 x 10^{-12} C

(D)  6.987 x 10^{-8} C/m^{2}

Explanation:

area (A) = 7.6 cm^{2} = 0.00076 m^{2}

distance (d) = 1.9 mm = 0.0019 m

potential difference (v) = 16 V

(A) electric field (E) = Δv / d = 16 / 0.0019 = 8,421.1 V/m

(B)  capacitance = (∈₀A)/d

     where ∈₀ =  permitivity of free space = 8.85 x 10^{-12}m^{-3}.kg^{-1} .s^{4}.A^{2}

capacitance = \frac{8.85 x 10^{-12}x0.00076}{0.0019}

capacitance (C) = 3.54 x 10^{-12} F

(C) charge (q) = C x v =  3.54 x 10^{-12} x 16  = 56.64x 10^{-12} C

(D) surface charge density = charge (q) / area =   56.64 x 10^{-12}  / 0.00076  =  7.453 x 10^{-8} C/m^{2}

3 0
2 years ago
A fisherman noticed that a float makes 30 oscillations in 15 seconds. The distance between two consecutive crests is 2 m. What i
never [62]

Answer:

Period T = 0.5 s

Frequency F = 2 Hz

Wave speed V = 4 m/s

Explanation:

Given that the

Number of oscillations = 30

Time taken = 15 seconds

The distance between two consecutive crests is called wavelength

Wavelength = 2m

Period is the ratio of time and the number of oscillations

Period T = 15/30 = 0.5 seconds

Frequency F is the reciprocal of period. That is,

F = 1/T

F = 1/0.5 = 2Hz

Wave speed V is the product of frequency and wavelength

V = 2 × 2 = 4m/s

8 0
2 years ago
The Milky Way is the name of the _______ where the Earth is located. A. orbit B. universe C. galaxy D. solar system
Grace [21]

Answer:

Galaxy

Explanation:

4 0
2 years ago
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