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3 years ago

Mechanical advantage allows you to apply a force over a what distance to what the distance an object moves

Physics

1 answer:

Sidana [21]3 years ago

7 0

Mechanical advantage allows you to apply a force over a short distance to increase the distance and object moves.

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The eight plants of the Solar System orbit the Sun in a chaotic random way.

vaieri [72.5K]

Answer:

The Solar System has plants? I assume you meant planets. If so, that is false

Explanation:

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3 years ago

How does the atmospheric temperature and size of inner planets compare with those of outer planets?

amid [387]

The inner planets are rocky and have diameters of less than 13,000 kilometers. The outer planets include Jupiter, Saturn, Uranus, and Neptune. The smaller, inner planets include Mercury, Venus, Earth, and Mars. Inner planet's atmosphere is thin. (Mercury has no atmosphere). Outer Planets: Outer planets' atmosphere is very thick. The four inner planets, Mercury, Venus, Earth, and Mars, are warmer than the outer gas giants. However, the temperature of the planets does not follow a linear path from the Sun.

Hope this helps!
Please give Brainliest!

6 0

3 years ago

zanele has a mass of 40kg and is sitting inside a 20kg cart .zanele's friends pull a cart with a force of 500N at an angle of 20

Dmitriy789 [7]

The net horizontal force acting on the cart is 169.85 N.

The change in the carts momentum is 5,000 Ns.

The net horizontal force on Zanele is same as the net horizontal force on the cart.

If angle between the 500N force and the horizontal is decreased, the final velocity of the cart increases.

The given parameters:

Mass of zanele, m1 = 40 kg
Mass of the cart, m2 = 20 kg
Applied force, F = 500 N, at angle 20 degrees
Frictional force on the cart, Ff = 300 N
Time, t = 10 s

<h3>Net horizontal force on the cart;</h3>

The net horizontal force acting on the cart is calculated as follows;

$F_{net} = F - F_f\\\\F_{net} = 500 \times cos(20) - 300\\\\F_{net} = 169.85 \ N$

<h3>Change in momentum;</h3>

The change in the carts momentum at the given time of applied force is calculated as follows;

$\Delta mv = Ft \\\\\Delta mv = 500 \times 10= 5,000 \ Ns$

The net horizontal force on Zanele is same as the net horizontal force on the cart.

<h3>The final velocity of the cart;</h3>

When the angle decreases the cart's final velocity would be affected as follows;

$F_{net} = F - F_f\\\\F_{net} = \frac{mv}{t} \\\\\frac{mv}{t} = F - F_f\\\\ \frac{mv}{t} = Fcos(\theta) - F_f\\\\let \ \theta = 0^0\\\\\frac{mv}{t} =500 \times cos(0) - 300\\\\\frac{mv}{t} = 200\\\\v = \frac{200 t}{m} \\\\when \ \theta = 20^0\\\\\frac{mv}{t} =500 \times cos(20) - 300\\\\\frac{mv}{t} = 169.85\\\\v = \frac{169.85t}{m}$

Thus, if angle between the 500N force and the horizontal is decreased, the final velocity of the cart increases.

Learn more about net horizontal force here: brainly.com/question/21684583

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3 years ago

Is friction an advantage in braking

marta [7]

Yes, Sliding Friction Stops a Car. When you apply the brakes of a car, sliding friction helps to stop it. ... The surface of the drum or rotor slide against the brake disc or pad, which is a force of friction that slows the vehicle down.

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3 years ago

1. Question

Paraphin [41]

All of the forces listed are correct. There are 4 presently known forces.
Second question os B. the Lorentz force. It's given by
F=q(E+VxB) where q is the electric charge, E is the electric field, V is the particle's velocity vector, B is the magnetic flux density, and "x" represents the vector cross product.

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3 years ago