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butalik [34]
3 years ago
10

A proton is projected with a velocity of 7.0 km/s into a magnetic field of 0.60 T perpendicular to the motion of the proton. Wha

t is the magnitude of the magnetic force that acts on the proton? (e = 1.60 × 10-19 C)
Physics
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:

6.72 x 10⁻¹⁶ N

Explanation:

v = speed of the proton moving through the magnetic field = 7 km/s = 7000 m/s

B = magnitude of magnetic field in the region = 0.60 T

q = magnitude of charge on the proton = 1.6 x 10⁻¹⁹ C

θ = Angle of magnetic field with the velocity of proton = 90

F = magnitude of magnetic force

magnitude of magnetic force is given as

F = q v B Sinθ

F = (1.6 x 10⁻¹⁹) (7000) (0.60) Sin90

F = 6.72 x 10⁻¹⁶ N

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2 years ago
Azurite is a mineral that contains 55.1% of copper. How many meter of copper wire with diameter of 0.0113 in can be produced fro
soldier1979 [14.2K]

Answer:

1402.73 m

Explanation:

Mass of Azurite=3.25 lb

Percent of copper in AZurite mineral=55.1%

Diameter of  copper wire,d=0.0113  in

Radius of copper wire=r=\frac{d}{2}=\frac{0.0113}{2}=0.00565 in=\frac{565}{100000}=\frac{565}{100}\times \frac{1}{1000}=5.65\times 10^{-3}in

\frac{1}{1000}=10^{-3}

Density  of copper=\rho=8.96g/cm^3

1 lb=454 g

3.25 lb=3.25\times 454=1475.5 g

Mass of Azurite=1475.5 g

Mass of copper=\frac{55.1}{100}\times 1475.5=813 g

Density=\frac{Mass}{volume}

Using the formula

8.96=\frac{813}{volume\;of\;copper}

Volume of copper wire=\frac{813}{8.96}=90.7cm^3

Radius of copper wire=5.65\times 10^{-3}\times 2.54=14.35\times 10^{-3} cm

1 in=2.54 cm

Volume of copper wire=\pi r^2 h

\pi=3.14

Using the formula

90.7=3.14\times (14.35\times 10^{-3})^2\times h

h=\frac{90.7}{3.14\times (14.35\times 10^{-3})^2}

h=140273 cm

1 m=100 cm

h=\frac{140273}{100}=1402.73 m

Hence, the length of copper wire required=1402.73 m

7 0
3 years ago
A scientific LAW has been proven and a THEORY has not. True Or False​
lara [203]

Answer:

true

Explanation:

i did the test its right

7 0
3 years ago
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Calculate the time in which a tuning fork of frequency 256 Kz. completes 32 vibrations?Answer needed urgently. Pl. help. Thanks
kherson [118]
The period (T) of a vibrating object is equal to the reciprocal of the frequency (f). Completing a number of vibrations (n) takes nT time.

t = nT = n/f = 32/256 = 1/8 = 125 ms.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

5 0
3 years ago
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Answer:1 or 2 option

Explanation:

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