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BabaBlast [244]
2 years ago
8

The table and graph below show the distances traveled by two different objects. (3 points)

Physics
1 answer:
Aleks04 [339]2 years ago
5 0

Answer:c

Explanation: the speed of object a changes but b travels at constant speed

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In a cloud chamber experiment, a proton enters a uniform 0.260 T magnetic field directed perpendicular to its motion. You measur
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Answer:

the proton speed of the proton was 1.6 × 10⁶ m/s

Explanation:

Given the data in the question;

Radius r = 6.42 cm = 0.0642 m

magnetic field B = 0.260 T

we know that; charge of proton q = 1.602 × 10⁻¹⁹ C

And mass of proton m = 1.672 × 10⁻²⁷ kg

we know that; Magnetic Force F = qvBsinθ

where q is the charge of proton, v is velocity, B is the magnetic field and θ is  angle ( 90° )

Also the Centripetal force experienced by the particle is;

F = mv² / r

where r is radius, m is mass of proton and v is velocity

hence;

qvBsinθ = mv² / r

we solve for v

rqvBsinθ = mv²

divide both sides by mv

rqvBsinθ / mv = mv² / mv

rqBsinθ / m = v

so we substitute

v = [ 0.0642 m × (1.602 × 10⁻¹⁹ C) × 0.260 T × sin(90°) ] /  1.67 × 10⁻²⁷ kg

v = 2.6740584 × 10⁻²¹ / 1.672 × 10⁻²⁷

v = 1.6 × 10⁶ m/s

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3 years ago
Electromagnetic waves can behave like particles
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A better way to say it might be:

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When placed in a lake, an object either floats on the surface or sinks. It does not float at some intermediate location between
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The particle in the air match the mass with the particles around the balloon stoping it from floating any higher
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Answer:

The wavelength of the radiation absorbed by ozone is 319.83 nm

Explanation:

Given;

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wavelength of the absorbed ultraviolet (UV) radiation, λ = ?

Apply wave equation for speed, frequency and wavelength;

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λ = v / f

λ = (3 x 10⁸) / (9.38×10¹⁴)

λ = 3.1983 x 10⁻⁷ m

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Which kind of mirror can produce real images?<br><br><br> A)concave<br><br> B)convex<br><br> C)flat
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Answer:

C

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