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3 years ago

Motion and motion graphs need help

Physics

1 answer:

jenyasd209 [6]3 years ago

5 0

Answer:

Explanation:

Lori's family is on a road trip. They split

their drive into the five legs listed in the

table. Find the average velocity for each

leg of the trip. Then arrange the legs of

the trip from lowest velocity to highest so

that's why lori family e, b, a, C, d, hsas the

full explanation acc to the question

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The 50-mm-diameter cylinder is made from Am 1004-T61 magnesium and is placed in the clamp when the temperature is T1 = 15°C. If

Sergio [31]

Answer:

The temperature of steel first becomes 12 MPa at a temperature of 18.65°C

Explanation:

Given that,

Diameter = 50 mm

Temperature = 15°C

Diameter = 10 mm

Stress = 12 MPa

We need to calculate the temperature of steel

Using formula of stress

$stress=\alpha Y\Delta T$

Where, Y = young modulus

T = temperature

$\alpha$ = coefficient of linear expansion of the material

Put the value into the formula

$12\times10^{6}=17.3\times10^{-6}\times190\times10^{9}\times(T_{2}-15)$

$(T_{2}-15)=\dfrac{12\times10^{6}}{17.3\times10^{-6}\times190\times10^{9}}$

$T_{2}=3.650+15$

$T_{2}=18.65^{\circ}$

We need to calculate the temperature of magnesium

Using formula of stress

$stress=\alpha Y\Delta T$

Put the value into the formula

$12\times10^{6}=25.2\times10^{-6}\times45\times10^{9}\times(T_{2}-15)$

$(T_{2}-15)=\dfrac{12\times10^{6}}{25.2\times10^{-6}\times45\times10^{9}}$

$T_{2}=10.5+15$

$T_{2}=25.58^{\circ}$

Hence, The temperature of steel first becomes 12 MPa at a temperature of 18.65°C

7 0

3 years ago

What is the equation describing the motion of a mass on the end of a spring which is stretched 8.8 cm from equilibrium and then

Sedbober [7]

Answer:

$x=(0.088m)\cos(\sqrt{\frac{k}{m} } t)$

Explanation:

We first identify the elements of this simple harmonic motion:

The amplitude A is 8.8cm, because it's the maximum distance the mass can go away from the equilibrium point. In meters, it is equivalent to 0.088m.

The angular frequency ω can be calculated with the formula:

$\omega =\sqrt{\frac{k}{m}}$

Where k is the spring constant and m is the mass of the particle.

Now, since the spring starts stretched at its maximum, the appropriate function to use is the positive cosine in the equation of simple harmonic motion:

$x=A\cos(\omega t)$

Finally, the equation of the motion of the system is:

$x=(0.088m)\cos(\omega t)$

$x=(0.088m)\cos(\sqrt{\frac{k}{m} } t)$

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4 years ago

The wattage of a bulb is 24 W when it is connected to a 12 V battery. Calculate its effective wattage if it operates on a 6 V ba

tresset_1 [31]

It would be 12W because: 6v is half of 12v so half of 24w would be 12w

3 0

3 years ago

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Of all fresh water available how much of it is ready for use by humans

Vlad1618 [11]

For a human. the human supply water usage is 3%. ONLY 3 PERCENT IS DRINKABLE TO HUMANS

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3 years ago

What is the volume of an object that has Mass=100g and Density= 745g/mL.

lana66690 [7]

Answer:0.13ml

Explanation:

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3 years ago