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Llana [10]
3 years ago
11

An electronic instrument that measures power and frequency of electronic signals is the

Physics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

Measures power and frequency would be a spectrum analyser and power is probably the wrong word .  Amplitude would be better .

Explanation:

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An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons, and has a mass of 6.64 * 10-27 kg. A
melamori03 [73]

Answer:

t = 4.21x10⁻⁷ s

Explanation:

The time (t) can be found using the angular velocity (ω):

\omega = \frac{\theta}{t}

<em>Where θ: is the angular displacement = π (since it moves halfway through a complete circle)</em>

We have:

t = \frac{\theta}{\omega} = \frac{\theta}{v/r}  

<u>Where</u>:      

<em>v: is the tangential speed </em>

<em>r: is the radius</em>

The radius can be found equaling the magnetic force with the centripetal force:

qvB = \frac{mv^{2}}{r} \rightarrow r = \frac{mv}{qB}

Where:

m: is the mass of the alpha particle = 6.64x10⁻²⁷ kg

q: is the charge of the alpha particle = 2*p (proton) = 2*1.6x10⁻¹⁹C

B: is the magnetic field = 0.155 T

Hence, the time is:

t = \frac{\theta*r}{v} = \frac{\theta}{v}*\frac{mv}{qB} = \frac{\theta m}{qB} = \frac{\pi * 6.64 \cdot 10^{-27} kg}{2*1.6 \cdot 10^{-19} C*0.155 T} = 4.21 \cdot 10^{-7} s

Therefore, the time that takes for an alpha particle to move halfway through a complete circle is 4.21x10⁻⁷ s.

I hope it helps you!    

4 0
3 years ago
Please answer help me
Andrews [41]
I believe the answer is x
7 0
3 years ago
A mass of gas has a volume of 4m3, a temperature of 290k, and an absolute pressure of 475 kpa. When the gas is allowed to expand
dsp73
P1v1/t1 = p2v2/t2
p1=475, v1=4, t1=290
v2=6.5, t2=277
solve for p2 in kpa
5 0
3 years ago
Table is in the picture. and will mark brainstest.
QveST [7]
B. A copper wire with rubber insulation
8 0
3 years ago
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right,
Debora [2.8K]
The object will come to a halt.

Resultant force at start:17-10=7 to the left
When additional force is added to the right,it balances the forces acting in the object.

7N to the right and 7N to the left suggests that the object will come to a halt as it is in equilibrium.
5 0
3 years ago
Read 2 more answers
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