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denis-greek [22]
3 years ago
9

PLEASE HELP ME!!!! During ________ particles and/or radiation are emitted or given off.

Physics
1 answer:
Aliun [14]3 years ago
5 0
C. Radioactive decay
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A
densk [106]
The elevator is going up
5 0
2 years ago
The dwarf planet Ceres contains over 50% of the mass of the main asteroid belt.
PolarNik [594]

False

Explanation:

Called an asteroid for many years, Ceres is so much bigger and so different from its rocky neighbors that scientists classified it as a dwarf planet in 2006. Even though Ceres comprises 25 percent of the asteroid belt's total mass, tiny Pluto is still 14 times more massive.

6 0
3 years ago
Air flows through a nozzle at a steady rate. At the inlet the density is 2.21 kg/m3 and the velocity is 20 m/s. At the exit, the
Vitek1552 [10]

To solve the problem, it is necessary to apply the concepts related to the change of mass flow for both entry and exit.

The general formula is defined by

\dot{m}=\rho A V

Where,

\dot{m} = mass flow rate

\rho = Density

V = Velocity

Our values are divided by inlet(1) and outlet(2) by

\rho_1 = 2.21kg/m^3

V_1 = 20m/s

A_1 = 60*10^{-4}m^2

\rho_2 = 0.762kg/m^3

V_2 = 160m/s

PART A) Applying the flow equation we have to

\dot{m} = \rho_1 A_1 V_1

\dot{m} = (2.21)(60*10^{-4})(20)

\dot{m} = 0.2652kg/s

PART B) For the exit area we need to arrange the equation in function of Area, that is

A_2 = \frac{\dot{m}}{\rho_2 V_2}

A_2 = \frac{0.2652}{(0.762)(160)}

A_2 = 2.175*10^{-3}m^2

Therefore the Area at the end is 21.75cm^2

3 0
3 years ago
White light viewed through a prism is an example of a(n) _______________ spectrum.
hoa [83]

Answer:

White light viewed through a prism is an example of a visible spectrum.

3 0
3 years ago
If a dog ran at 5 m/s how far would it run in 45 s
Virty [35]

Answer:

225 m//s

Explanation:

It ran 5m/s so 5x45=225

3 0
3 years ago
Read 2 more answers
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