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wolverine
12 days ago
10

The current through a certain heater wire is found to be fairly independent of its temperature. If the current through the heate

r wire is doubled, the amount of energy delivered by the heater in a given time interval will(a) increase by a factor of two. (b) decrease by a factor of two. (c) increase by a factor of four.(d) decrease by a factor of four. (e) increase by a factor of eight.
Physics
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How, if at all, would the equations written in Parts C and E change if the projectile was thrown from the cliff at an angle abov
Keith_Richards [3271]

Answer:

x = v₀ cos θ   t,   y = y₀ + v₀ sin θ t - ½ g t2

Explanation:

This pertains to a projectile motion scenario. Here, we will express the equations for both the x and y dimensions.

Now, we will apply trigonometry to determine the initial velocity components.

              sin θ = v_{oy} / v₀

              cos θ = v₀ₓ / v₀

              v_{y} = v_{oy} sin θ

              v₀ₓ = v₀ cos θ

Next, let's formulate the equations of motion.

X axis

         x = v₀ₓ t

         x = v₀ cos θ   t

        vₓ = v₀ cos θ

Y axis

        y = y₀ + v_{oy} t - ½ g t2

        y = y₀ + v₀ sin θ t - ½ g t2

        v_{y} = v₀ - g t

       v_{y} = v₀  sin θ - gt

        v_{y}^{2} = v_{oy}^2 sin² θ - 2 g y

It is evident that the major distinction lies in the fact that in an inclined launch compared to a horizontal one, the velocity comprises different components

7 0
1 month ago
What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect?
kicyunya [3294]

<span>E = h x f </span>

<span>Thus: </span>

<span>f = E / h </span>
<span>f = 4.41•10^-19 / 6.62•10^-34 </span>
<span>f = 6.66•10^14 Hz (s^-1) </span>


<span>b/ What is the wavelength of this light? </span>
<span>------------------------------ </span>

<span>λ = c / f </span>
<span>λ = 3•10^8 / 6.66•10^14 </span>
<span>λ = 4.50•10^-7 m </span>
4 0
2 months ago
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Layla is researching one of the outer planets. So far, she knows only that it is either a gas giant or an ice giant. Which two s
Keith_Richards [3271]

E) This planet has a greater diameter than any of the four terrestrial planets that orbit close to the Sun.

B) A substantial amount of rocky material accumulated to create a planet larger than Earth.

(Which two statements are the most accurate)

- A, C, and D simply do not make sense.

7 0
2 months ago
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