5 hours ago

A uniform solid sphere rolls down an incline. A) What must be the incline angle (deg) if the linear acceleration of the center o

f the sphere is to have a magnitude of 0.21g? B) If a frictionless block were to slide down the incline at that angle, would its acceleration magnitude be more than, less than, or equal to 0.21g?

Physics

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A proton moves along the x-axis with vx=1.0×107m/s. As it passes the origin, what are the strength and direction of the magnetic

inna [3103]

Answer:

At this position, the magnetic field equals ZERO

Explanation:

The magnetic field produced by a moving charge is described as

$B = \frac{\mu_0 qv sin\theta}{4\pi r^2}$

Here, we determine the direction of the magnetic field using

$\hat B = \hat v \times \hat r$

Thus, we find

$\hat B = \hat i \times (\hat i + 0\hat j + 0\hat k)$

Leading to a magnetic field of ZERO

Consequently, when the charge moves in the same line as the given position vector, the magnetic field will be nonexistent

3 0

2 months ago

5. The speed of a transverse wave on a string is 170 m/s when the string tension is 120 ????. To what value must the tension be

Sav [3153]

Answer:

The tension in the string when the speed increased is 134.53 N

Explanation:

Given;

Tension in the string, T = 120 N

initial speed of the transverse wave, v₁ = 170 m/s

final speed of the transverse wave, v₂ = 180 m/s

The wave speed is expressed as;

$v = \sqrt{\frac{T}{\mu} }$

where;

μ represents mass per unit length

$v^2 = \frac{T}{\mu} \\\\\mu = \frac{T}{v^2} \\\\\frac{T_1}{v_1^2} = \frac{T_2}{v_2^2}$

The new tension T₂ will be computed as;

$T_2 = \frac{T_1 v_2^2}{v_1^2} \\\\T_2 = \frac{120*180^2}{170^2} \\\\T_2 = 134.53 \ N$

Consequently, the tension in the string when the speed was increased is 134.53 N

3 0

2 months ago

A student placed a pencil in a cup of water. The pencil appears broken because light- always travels in a straight line makes th

kicyunya [3294]

<span>None of the provided options presents an accurate statement. The third choice is nearly correct,
yet it can be considered misleading.

The pencil seems broken due to light bending away from a straight path
when it transitions from air to water.</span>

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2 months ago

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A vehicle ___________ occurs when the driver begins to back up and is unaware that a person is behind the vehicle.

Maru [3345]

I'm unaware of the term accident?

6 0

3 months ago

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