Plz help

Physics

1 answer:

Dominik [7]2 years ago

6 0

The answer is D. All of the above

When we draw a graph, we represent the Dependent Variable on the Y-axis and the Independent Variable on the X-axis. The graph is then named in the format "Y-variable vs X-variable". In this case Y-variable = mpg and X-variable = speed of car.

Independent Variable simply means that we can freely change that variable and observe how the Dependent Variable changes. So, here the speed of the car is being changed on a straight flat road and its effect on mpg is being studied.

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Which row shows what happens to the temperature of a solid as it melts and what happens to the temperature when

frez [133]

When ice melts, its temperature doesn't change ... ice at 32 degrees becomes water at 32 degrees.

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The row that says both of these is row-D .

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2 years ago

A computer disk drive is turned on starting from rest and has a constant angular acceleration. If it took 0.750 seconds for the

Irina-Kira [14]

Answer:

a) Θ = ω₀*t + ½αt² To complete first revolution 2π rads = 0*t + ½αt² and to complete the first and second combined 4π rads = 0*t + ½α(t+0.810s)² Divide second by first: 2 = (t + 0.810s)² / t² This is quadratic in t and has roots at t = -0.336 s ← ignore and t = 1.96 s ◄ b) Use either equation from above: 2π rads = 0*t + ½α(1.96s)² α = 3.27 rad/s² ◄ Hope this helps!

Explanation:

6 0

2 years ago

20 points+ Brainliest

Helen [10]

Answer:

The answer is B. hope this helps

Explanation:

3 0

2 years ago

A 0.25 kg harmonic oscillator has a total mechanical energy of 4.1 j. if the oscillation amplitude is 20.0 cm, what is the oscil

laiz [17]

When the oscillator is at maximum extension, we know all of its energy is in Potential Energy, so if the total oscillation energy is 4.1 J, we know that at maximum displacement of 0.2 m, that

energy = 1/2 kA^2 where A= 0.2 m 

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7 0

2 years ago

Read 2 more answers

(a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32º ramp at a speed

stiks02 [169]

a) 7 buses

b) 6.8 m

Explanation:

The motion of the motorcycle is a projectile motion, so it consists of 2 independent motions:

- A uniform motion along the horizontal direction

- A uniformly accelerated motion along the vertical direction

The initial components of the velocity of the motorcycle are: