Can you answer this math homework? Please!

Answer:

Remember 1 litre is equivalent to 1 cm³

[tex]density = \frac{mass}{volume} \\ \\ density = \frac{(2.08 \times 1000) \: g}{2 \: cm {}^{3} } \\ \\ { \boxed{ \boxed{density = 1040 \: g {cm}^{ - 3} }}}[/tex]

or: density is 1.04 kg/l

Answer:

A. The time it takes for the water to boil

It is because salt was added into the water. So the responding variable is the time taken to boil the water.

hope this help u. good luck

Answer:

two protons and two neutrons

it's the answer. hope it helps

Alpha particles have two protons and two neutrons. Therefore, option (D) is correct.

Alpha particles can be defined as positively charged particles released from the decay of several radioactive materials. The mass of the Alpha particle is because of the presence of two protons and two neutrons. Therefore, the Alpha particles nucleus is very similar to the nucleus of the Helium atom and are denoted by the Greek alphabet α.

An alpha particle or ray is also known as doubly ionized helium nuclei (He²⁺). The alpha particle's mass is equal to 6.64 × 10⁻²⁷ Kg. Alpha particles are generally generated during the standard radioactive decay of atomic nuclei.

Alpha particles contains the kinetic energy of 5MeV and a speed of 5 % of that of the speed of light. They are also formed in high-energy particle accelerators and are highly ionized particles with low penetration depth compared to other particles.

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Answer:

Kepler's three laws of planetary motion can be stated as follows: (1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. ... (3) The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.

Answer: The displacement of the ball

ℎ =

2 −

2

2

So, final speed of the first ball

1 = √2ℎ = √2 × 9.8 × 32.5 = 25.24

m

s

The change of it speed

∆1 = 25.24 − 0 = 25.34

m

s

The final speed of the second ball

2 = √

2 + 2ℎ = 27.53

m

s

The change of the second ball speed

∆2 = 27.53 − 11 = 16.53

m

s

Thus

∆1 > ∆2

Answer: ∆1 > ∆2

Explanation:

The final velocity of the first ball is 25.24 m/s and the final velocity of the second ball is 27.53 m/s

To calculate the final velocity of the first ball, we use the equation

v² = u² - 2gh where u = initial velocity of first ball = 0 m/s, v = final velocity of first ball, g = acceleration due to gravity = -9.8 m/s² (since it is directed downwards)and h = height of cliff = 32.5 m

Substituting the values of the variables into the equation, we have

v² = u² - 2gh

v² = (0 m/s)² - 2 × -9.8 m/s² ×  32.5 m

v² = 0 m²/s² + 637 m²/s²

v² = 637 m²/s²

v = √(637 m²/s²)

v = 25.24 m/s

To find the final velocity of the second ball, we also use

v'² = u'² - 2gh where u' = initial velocity of second ball = 11 m/s, v' = final velocity of second ball, g = acceleration due to gravity = -9.8 m/s² (since it is directed downwards)and h = height of cliff = 32.5 m

Substituting the values of the variables into the equation, we have

v'² = u'² - 2gh

v'² = (11 m/s)² - 2 × -9.8 m/s² ×  32.5 m

v'² = 121 m²/s² + 637 m²/s²

v'² = 758 m²/s²

v' = √(758 m²/s²)

v' = 27.53 m/s

So, the final velocity of the first ball is 25.24 m/s and the final velocity of the second ball is 27.53 m/s

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[tex] \large \mathfrak{Solution : }[/tex]

Distance = 150 meters

Time = 18 seconds

Speed :

Answer:

u go to vanguard? in 6th grade

Answer:

is it correct ? sorry of it is incorrec

Answer:

i think answer is c

Explanation:

as formation water from steam condensed release heat

else all need heat

The factory worker need to know is the state of the material at room temperature and atmospheric pressure.

Matter is anything that has mass and occupy space. Everything around is composed of matter. The material can easily be classified by considering the state of matter in which the material is found at room temperature and atmospheric pressure.

Hence, all the factory worker need to know is the state of the material at room temperature and atmospheric pressure. This will tell us whether it is a liquid, solid or gas.

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Answer:

I think it is 30km/hr ooh

[tex]\boxed{\sf K.E=\dfrac{1}{2}mv^2}[/tex]

[tex]\\ \sf\longmapsto 18750=\dfrac{1}{2}2100v^2[/tex]

[tex]\\ \sf\longmapsto 18750=1050v^2[/tex]

[tex]\\ \sf\longmapsto v^2=\dfrac{18750}{1050}[/tex]

[tex]\\ \sf\longmapsto v^2=17.85m^2[/tex]

[tex]\\ \sf\longmapsto v=\sqrt{17.85}[/tex]

[tex]\\ \sf\longmapsto v=4.1m/s[/tex]

Assuming you are supposed to write each conversion in scientific notation:

(2) 1 m = 100 cm, so

(67 cm) × (1/100 m/cm) = 67/100 m = 0.67 m = 6.7 × 10 ⁻¹ m

(3) 1 km = 1,000 m, so

(1.2 km) × (1000 m/km) = 1200 m = 1.2 × 10³ m

(4) 1 m = 1,000 mm = 10³ mm, so

(6.2 × 10 ⁻³ m) × (10³ mm/m) = 6.2 mm

(5) 1 m = 1,000,000,000 nm = 10⁹ nm, so

(4.05 × 10³ nm) × (1/10⁹ m/nm) = 4.05 × 10 ⁻⁶ m

(6) 1 g = 1,000,000 µg = 10⁶ µg, so

(3200 µg) × (1/10⁶ g/µg) = 3200 × 10 ⁻⁶ g = 3.2 × 10 ⁻³ g

Answer:

t=distance ÷ speed

23÷70

t=0.33 sec

Answer:

second one

Explanation:

Answer:

B. bisector of an angle.

Answer:

A

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Answer:

A hot air balloon

Energy = (power) x (time)

Energy = (16 watt) x (5 hours)

Energy = 80 watt-hours

or

Energy = 0.08 Kilowatt-hours

or

1 watt = 1 joule/second

5 hours = 18,000 seconds

Energy = (16 joule/sec) x (18,000 sec)

Energy = 288,000 Joules

Explanation:

A unit of electricity is represented in kilowatt-hour (KWh). To calculate units, you need to find the energy consumption. It is easy, just multiply power with time.

(16×5 ) watt-hour=80Wh.

Convert it to kilowatt-hour i.e 0.08 KWh/day.

So 0.08 KWh is the energy consumption for one day.

Las dos líneas más largas del terreno de juego se denominarán líneas de banda. Las dos más cortas se llamarán líneas de meta. El terreno de juego será rectangular y la longitud de las líneas de banda deberá ser mayor que las de las líneas de meta. La longitud de la línea de banda debe tener como mínimo 90 metros y como máximo 120 metros. La anchura de la línea de meta debe de tener como mínimo 45 metros y como máximo de 90 metros. Todas las líneas del terreno de juego deberán se líneas continuas y tener la misma anchura, como máximo 12 cm., menos las líneas de meta que deben tener la misma anchura que los postes y larguero de la portería. Todas las líneas que delimitan al campo forma parte del terreno de juego. El terreno de juego puede ser de tierra, césped natural ó césped artificial de color verde según las normas del reglamento de la competición. El terreno de juego está dividido en dos partes iguales por una línea que unirá los puntos medios de las dos líneas de banda. El centro del campo estará marcado con un punto situado en la mitad de la línea media que divide las dos partes iguales del campo, tomando este punto como centro, haremos circulo de un radio de 9,15 metros. También se puede poner un banderín en cada extremo de la línea de media, a una distancia mínima de 1 m al exterior de la línea de banda.

Answer:

pressure is force per unit length

Answer:

SI unit of displacement is meter

Answer:

I hope it helped U......

ball a

Explanation,

Hope it helps

Answer:

As we know 1 liter=1000ml

2 liter bottle of soda has 2000 milliliter in it.

Answer: acceleration will slow down.

Explanation: Since mass is inversely proportional to acceleration, if you increase the mass at a given force the rate of acceleration slows.