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3 years ago

1.when viable light shines on a black object it get warm because.

Physics

2 answers:

SVETLANKA909090 [29]3 years ago

7 0

Black absorbs heat whereas white reflects the heat off

Lera25 [3.4K]3 years ago

4 0

Answer:

1. Black absorbs heat and does not bounce the light off. 2. White bounces the light off reducing heat

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In an astronomical sense, which is not considered an ice?

Novay_Z [31]

In an astronomical sense, Hydrogen is not considered ice. Astronomy is the study of celestial bodies (e.g. sun, moon, stars, planets, etc.). In astronomical terms, Hydrogen is an element consisting of one electron and one proton. Hydrogen is the lightest of the elements and is the building block of the universe. Stars form from massive clouds of hydrogen gas.

8 0

3 years ago

Read 2 more answers

Solution:

patriot [66]

No clue. bye. and gold luck!

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4 years ago

Si tu velocidad al caminar es 0,3 m/s. Determina el tiempo que demorarias en llegar al sol en horas (REALIZAR TRANSFORMACIÓN DE

Contact [7]

Answer:

138,516,546.9 horas.

Explanation:

Tenemos que usar la ecuación:

Velocidad = distancia/tiempo

Acá tenemos:

Velocidad = 0.3m/s

distancia = 149597870700 m

y queremos resolver la ecuación para el tiempo:

0.3m/s = 149597870700m/tiempo.

tiempo = 149597870700m/(0.3m/s) = 498,659,569,000 s

y sabemos que una hora tiene 3600 segundos, entonces si queremos transformar de segundos a horas tenemos:

498,659,569,000 s = (498,659,569,000/3600) h = 138,516,546.9 horas.

6 0

3 years ago

Osmium (os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and in kilograms of an os sphere

Rufina [12.5K]

Answer:

Mass in kg = 39.88

Mass in pounds = 87.92

Explanation:

We have the expression for Density, ρ = Mass / Volume, in this case density is given and we need to find mass and volume.

Volume of a sphere, we have the expression $V = \frac{4}{3} \pi r^3$ , where r is the radius of sphere.

Radius of sphere, r = Half of diameter = 15/2 = 7.5 cm

So $V = \frac{4}{3}* \pi* 7.5^3 = 1767.15 cm^3$

Mass = Volume * Density = 1767.15*22.57 = 39884.49 g

Mass in kg = 39884.49/1000 = 39.88 kg

Mass in pounds = 39.88*2.205 = 87.92 lb

4 0

3 years ago

A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. What is

SVEN [57.7K]

Answer:

12.2 m/s

Explanation:

Initial momentum = final momentum

In the x direction:

(900 kg) (15.0 m/s) = (900 kg + 750 kg) vx

vx = 8.18 m/s

In the y direction:

(750 kg) (20.0 m/s) = (900 kg + 750 kg) vy

vy = 9.09

The magnitude of the velocity is therefore:

v = √(vx² + vy²)

v = 12.2 m/s

7 0

3 years ago