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fomenos
3 years ago
7

Bismuth and fluorine react to form bismuth fluoride. If 41796 g of

Physics
1 answer:
Mkey [24]3 years ago
4 0

The mass of bismuth fluoride formed is 41909.99 g

Explanation:

According to the law of conservation of mass, the total mass of the reactants in a chemical reaction must be equal to the total mass of the products after the reaction.

In this problem, we have:

  • Reactants: bismuth and fluoride
  • Products: bismuth fluoride

We also have:

  • Mass of bismuth: 41796 g
  • Mass of fluoride: 113.99 g

So, the total mass of the reactants is:

M=41796+113.99 =41909.99 g

And therefore, the mass of bismuth fluoride formed is also 41909.99 g.

#LearnwithBrainly

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A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. A
Setler [38]

Explanation:

Average acceleration is change in velocity over time.

a = Δv / Δt

a = (22.0 m/s − (-25.0 m/s)) / 0.00350 s

a = 13,400 m/s²

7 0
3 years ago
how much power is radiated as a sound from a band whose intensity is 1.6x10-3 w/m2 at a distance of 12m
Vesna [10]

2.89watts.

<h3>What is meant by sound intensity?</h3>
  • The average rate at which sound energy moves across a unit area normal to a given direction is used to determine a sound's intensity. This rate is generally stated in ergs per second per square centimeter.
  • Decibels are the units used to measure sound intensity, often known as sound power or sound pressure. The decibel (dB) unit is named after Alexander Graham Bell, who also created the audiometer and the telephone. An audiometer is a tool to gauge a person's hearing capacity for various noises.
  • Our ability to measure the flow of sound energy as a time-averaged vector quantity makes sound intensity measuring an effective method. We can identify sound sources and tell direct sound from reverberant sound in a room using the characteristics of sound intensity.

How much power is radiated as a sound from a band whose intensity is 1.6x10-3 w/m2 at a distance of 12m:

Formula: I\frac{P}{4\pi r^{2} }

I=1.6x10-3 w/m2

r=12m

I\frac{P}{4\pi r^{2} }

P=I4\pi r^{2}

   =(1.6x10-3\frac{W}{m^{2} } ) (4\pi (12m)^{2} )

   =2.89watts.

To learn more about sound intensity, refer to:

brainly.com/question/17062836

#SPJ9

8 0
2 years ago
The current theory of the structure of the
Elza [17]

Answer:  91.4 J

Explanation:

Kinetic energy is the energy possessed by a body due to virtue of its motion.

K.E. = 0.5 m v²

Mass of the continent is given, m = 1.819 × 10²¹ kg

Side of the block of continent, s = 4150 km = 4150000 m

Depth of the block of continent, d = 38 km = 38000 m

(Mass = density × volume

m = 2780 kg/m³× (4150 × 10³ m)²× 38 × 10³ m = 1.819 × 10²¹ kg)

The continent is moving at the rate of, v = 1 cm /year = 0.01 m / 31556926 s = 3.17 × 10⁻¹⁰ m/s

⇒ K.E. = 0.5 × 1.819 × 10²¹ kg × (3.17 × 10⁻¹⁰ m/s)²= 91.4 J

Hence, mass of the continent has 91.4 J of kinetic energy.

5 0
3 years ago
A research submarine has a 30-cm-diameter window that is 8.6 cm thick. The manufacturer says the window can withstand forces up
slega [8]

First solve the area of the ow the window os the submarine

A = pi* (0.15)^2= 0.0707 m2

The pressure it can with stand is

P= F/A = 1.2x10^6 N/ 0.0707 m2 = 16976527.26 Pa

Using the formala

P = pgh

Where p is the density of water

G is the accelartion due to gravity

H is the depth

H = P/pg

=16976527.26 Pa/ (1000 kg/m3)(9.81 m/s2)

H = 1730.53 m

3 0
3 years ago
The force you have to overcome to start an object moving is _____
MAVERICK [17]
The forece you have to overcome to start an object moving is called Inertia.
3 0
4 years ago
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