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4 years ago

What is the weight of a 24.52kg Television dropped on pluto(acceleration of 0.59m/s/s)?

Physics

2 answers:

jolli1 [7]4 years ago

6 0

W=ma=24.52*0.59 = ...

ella [17]4 years ago

6 0

Answer:

14.47 Newtons

Explanation:

Hello

The weight of an object is the force of gravity on the object and can be defined as the product of mass by the acceleration of gravity, w = mg

for example

a person with mass of 80 kilograms on earth where the acceleration of gravity is 9.8 m/s2 weigh.

w=mg

W=80kg*9.8 m/s2

W=784 Newtons

Now, let see the data we have about the question

$W=mg\\W=24.52 kg* 0.59 \frac{m}{s^{2} } \\W=14.47\ Newtons$

the weight is 14.47 N

Have a great day

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An electric iron has a rating of 750w and 220v then calculate the current flowing through it and the resistance

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Watt = voltage x ampere
750 = 220 x ampere
Ampere = 750 / 220
Resistance = voltage / ampere
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3 years ago

A projectile is launched at an angle of 45° from the horizontal and lands 21 s later at the same height from which it was launch

irinina [24]

Answer:

a) initial speed of projectile = 145.5 m/s

b) Maximum altitude = 540 m

c) Range = 2160.6 m

d) r = (1440î + 480j) m

Explanation:

The distance at any time for the projectile is given by the relation - r² = x² + y²

where x = horizontal distance covered covered by the projectile and y = vertical distance coveredby the projectile

Let the initial velocity be u = ?

angle of projection be θ with respect to the horizontal = 45°

u = (uₓî + uᵧj) m/s

T = total time of flight = 21 s

t = any time during the flight of the projectile

a) Total time of flight = 2 uᵧ/g = (2u sin θ)/g

21 = (2u sin 45°)/9.8

u = 145.5 m/s

b) maximum altitude of the projectile = H

H = (u² sin² θ)/2g

H = (145.5² sin² 45°)/(2 × 9.8)

H = 540 m

c) According to projectile motion the maximum horizontal displacement is given by

x = R = uₓT = u cos(θ) T (since uₓ = u cos θ)

R = (145.5 cos 45°) × 21 = 2160.6 m

d) At 14 s,

x = uₓt = u cos(θ) t (since uₓ = u cos θ)

x = (145.5 cos 45°) × 14 = 1440.1 m

y = uᵧ t - 0.5gt² = [u sin(θ)] t - 0.5gt² = (145.5 sin 45°) × 14 - 0.5(9.8)(14) = 480 m

r = (1440î + 480j) m

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3 years ago

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Answer:

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Explanation:

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MariettaO [177]

Answer:

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T1 = 20+273.15 = 293.15 K

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T2 = 120+273.15 = 393.15 K

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