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Nataliya [291]
4 years ago
15

What is the relationship between the size and weight of an object and the amount of friction that is present?

Physics
1 answer:
kupik [55]4 years ago
3 0
<span>Size = more material is in contact with the other material, therefore more area experiencing friction</span>
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create a formula giving the strength of the induced field (B) i terms of current (I) and the distance from the wire to the probe
lapo4ka [179]
If this is a long straight wire, then you probably mean:
B = μ₀I/(2πd)
8 0
3 years ago
PLEASEE HELP ME ❤️❤️
BartSMP [9]
1.)Multi-cellular
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3 0
4 years ago
In the nuclear fission process mass is converted into energy. Determine the total mass that must be converted to energy in one y
brilliants [131]

Answer:

1) Mass that needs to be converted at 100% efficiency is 0.3504 kg

2) Mass that needs to be converted at 30% efficiency is 1.168 kg

Explanation:

By the principle of mass energy equivalence we have

E=mc^{2}

where,

'E' is the energy produced

'm' is the mass consumed

'c' is the velocity of light in free space

Now the energy produced by the reactor in 1 year equals

Energy=Power\times time\\\\\therefore Energy=1\times 10^{9}\times 365\times 24\times 3600\\\\Energy=31.536\times 10^{15}Joules

Thus the mass that is covertred at 100% efficiency is

mass=\frac{Energy}{c^{2}}\\\\mass=\frac{31.536\times 10^{15}}{(3\times 10^{8})^{2}}\\\\mass=\frac{31.536\times 10^{15}}{9\times 10^{16}}\\\\\therefore mass=0.3504kg

Part 2)

At 30% efficiency the mass converted equals

mass|_{30}=\frac{mass|_{100}}{0.3}\\\\mass|_{30}=\frac{0.3504}{0.3}\\\\mass|_{30}=1.168kg

8 0
4 years ago
Which of the following is TRUE regarding photoelectric effect from the experimental data?
Maksim231197 [3]

Answer:

Experiments showed that increasing the light frequency increased the kinetic energy of the photoelectrons, and increasing the light amplitude increased the current.

Explanation:

The photocurrent increases linearly with the intensity of the incident light but is independent of its frequency. The stopping potential increases linearly with the frequency of the incident light but is independent of its intensity.

6 0
3 years ago
The crystal in a digital watch oscillates at a rate of 215 Hz. If the maximum displacement of one crystal face (measured from on
Marizza181 [45]

The maximum speed of the face is determined as 6.75 x 10⁻⁵ m/s.

<h3>Maximum speed of the face</h3>

v = fλ

where;

  • f is frequency of the wave
  • λ is the wavelength

<h3>Angular speed of the wave</h3>

ω = 2πf

v(max) = ωA

v(max) = 2πfA

where;

  • A is amplitude of the wave

v(max)  = 2π(215)(50 x 10⁻⁹ m)

v(max) = 6.75 x 10⁻⁵ m/s

Thus, the maximum speed of the face is determined as 6.75 x 10⁻⁵ m/s.

Learn more about maximum speed here: brainly.com/question/4931057

#SPJ1

4 0
2 years ago
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