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olga55 [171]
3 years ago
8

HURRY ! THE BEST I WILL GIVE THE BRAINLIEST​

Physics
1 answer:
erik [133]3 years ago
6 0

The speed of both cars is the same ... 80 km per hour.

But their velocities are different, because DIRECTION is part of velocity, and their directions are different.

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A newborn baby’s brain grows rapidly. In fact, it has been found to increase in mass by
VladimirAG [237]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here. Below are the answers:

1a: 
<span>(1.6 * 60) = growth per hour, GPH </span>
<span>(GPH * 24) = Growth per day. </span>
<span>1b: </span>
<span>1N = 101.971621g (let's say 102g) </span>
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7 0
3 years ago
How can you change the amplitude of a wave?
kondaur [170]

Answer:

"Changing the amplitude of a signal is straightforward: We just need to multiply each sample with some constant number. In the case of sine waves, if what we want is a wave with amplitude a, our wave function becomes y = a * Math.sin(x)."

Explanation:

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7 0
3 years ago
A dart is thrown from 1.50 m high at 10.0 m/s toward a target 1.73 m from the ground. At what angle was the dart thrown?
Triss [41]

Answer:

The angle of projection is 12.26⁰.

Explanation:

Given;

initial position of the dart, h₀ = 1.50 m

height above the ground reached by the dart, h₁ = 1.73 m

maximum height reached by the dart, Hm = h₁ - h₀ = 1.73 m - 1.50 m= 0.23 m

velocity of the dart, u = 10 m/s

The maximum height reached by the projectile is calculated as;

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where;

θ is angle of projection

g is acceleration due to gravity = 9.8 m/s²

H_m = \frac{u^2sin^2 \theta}{2g}\\\\sin^2 \theta = \frac{H_m \ \times \ 2g}{u^2} \\\\sin^2 \theta = \frac{0.23 \ \times \ 2(9.8)}{10^2} \\\\sin ^2\theta =0.04508\\\\sin \theta = \sqrt{0.04508} \\\\sin \theta = 0.2123\\\\\theta  = sin^{-1}(0.2123)\\\\\theta  = 12.26^0

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6 0
3 years ago
A car designer is designing a new model of a popular car. He wants to use the same engine as in the old model, but improve the n
Kruka [31]

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. F = ma; a = F/m. This means that Force over the mass. In order to improve the acceleration without redesigning is that the company has to improve the force assuming that the mass is still the same.

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3 years ago
When a 4-μf capacitor has a potential drop of 20 v across its plates, how much electric potential energy is stored in this capac
Genrish500 [490]

Thew energy stored in a capacitor of capacitance C and voltage between the plates V is

E=\frac{1}{2} CV^2.

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7 0
4 years ago
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