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3 years ago

A plane that is 2000m in the air of the potential energy of the plane is 86000 J what is the mass of the plane

Physics

1 answer:

sveticcg [70]3 years ago

6 0

Hi there!

Recall the equation for gravitational potential energy:
$GPE = U = mgh$

m = mass (kg)
g = acceleration due to gravity (9.8 m/s²)

h = height (m)

We are given the GPE, so we can solve for mass:
$86000 = m * 2000 * 9.8$

Solve for m:
$m = \frac{86000}{2000(9.8)} = \boxed{4.39 kg}$

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3 years ago

The current in the wires of a circuit is 120.0 milliamps.If the voltage impressed across the ends of the circuit where tripled(w

ivanzaharov [21]

Answer:

Explanation:

Current in a wire is 120mA

I = 120mA = 120 × 10^-3 A

I = 0.12 A

If the voltage applied at across the wire is tripled

From ohms law

V=IR

R = V / I

Since R is constant

Then,

V / I = K

Then, we can say

V / I = V' / I'

Given that,

Initially

V = V and I = 120mA

Then, V' = 3V and I' =?

So,

V / I = V' / I'

V / 120 = 3V / I'

Cross multiply

V × I' = 120 × 3V

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4 years ago

You are working for a manufacturing company. Your supervisor has an idea for controlling the position of a small bead by using e

Mashutka [201]

You are working for a manufacturing company, which is mathematically given as

$m=3\sqrt{2}$
$m=\frac{15\sqrt{5}}{16}$
x=0.747a
$m/n=\frac{(x^2+a^2)3/2}{x^3}$

<h3>What is the value of m that will place the movable bead in equilibrium at x-a a ....?</h3>

Generally, the equation for the force of equilibrium is mathematically given as

F=2fcos\theta

Therefore

$K(npq^2/a^2)=2\frac{kmpq^2}{a\sqrt{2}^2}0.5\\\\np=mP/ \sqrt{2}\\\\where n=3$

$m=3\sqrt{2}$

By force equilibrium

$K(npq^2/(2a^2))=2*\frac{kmpq^2}{a\sqrt{5a}^2}* \frac{2a}{\sart{5a}}$

Therefore

$n/4=2/5*m*2/\sqrt{5}\\\\m= \frac{5\sqrt{5}}{16}\\\\\\\\$

$m=\frac{15\sqrt{5}}{16}$

$K(npq^2/x^2)=2\frac{kmpq^2}{a\sqrt{x^2+a^2}^2}0.5*x/\sqrt{x^2+a^2}$

x^2+a^2=(14/3)^{2/3}x^2

x=a/1.338

x=0.747a

By force equilibrium

$K(npq^2/x^2)=2\frac{kmpq^2n}{\sqrt{x^2+a^{3/2}}^2}\\\\n/x^2=\frac{2mx}{(x^2+a^2)^{3/2}}$

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2 years ago

The greatest number of thunderstorms occur in the _____.

Agata [3.3K]

The appropriate response is tropics. Rainstorms happen when there is warm air that ascents. This air should likewise be clammy or saturated. Hence, regions that are warm and moist are typically where rainstorms happen. (These spots are most generally found around the equator)

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3 years ago

Read 2 more answers

on the surface of planet x, a body with a mass of 10 kilograms weighs 40. newtons. the magnitude of the acceleration due to grav

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where W is weight, m is mass, and a is acceleration. Substituting the known values,

40 kg m/s² = (10 kg) x a

Calculating for the value of a from the equation will give us an answer equal to 4.

ANSWER: 4 m/s².

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3 years ago