Which of the following is NOT true regarding the far side of the moon:

r law 1 I I hr ohm berm died I'm- an m at a r m 100 War I j V m Exam m terms of he movement of . . n molecules. how the air exer

OlgaM077 [116]

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4 0

3 years ago

A metal can containing condensed mushroom soup has mass 215 g, height 10.8 cm, and diameter 6.38 cm. It is placed at rest on its

s344n2d4d5 [400]

Answer:

Part a)

Moment of inertia of the cylinder is given as

$I = 1.21 \times 10^{-4} kg m^2$

Part B)

Height of the cylinder is of no use here to calculate the inertia

Part C)

Since we don't know about the viscosity data of the soup inside the cylinder so we can't say directly about the moment of inertia of the cylinder as $I = 1/2 mR^2$

Explanation:

As we know that the inclined plane is of length L = 3 m

and its inclination is given as 25 degree

so we know that acceleration of center of mass of the cylinder is constant so we will have

$v_f^2 = v_i^2 + 2 a L$

so we have

$v_f^2 = 0 + 2a(3)$

now we know that

$v_{avg} = \frac{L}{t} = \frac{v_f + v_i}{2}$

$\frac{3}{1.50} = \frac{v_f + 0}{2}$

$v_f = 4 m/s$

Now we have know that final speed of the cylinder due to pure rolling is given as

$v_f = \sqrt{\frac{2gH}{1 + \frac{I}{mR^2}}}$

$4 = \sqrt{\frac{2(9.81)(3 sin25)}{1 + \frac{I}{0.215(0.0319)^2}}}$

$I = 1.21 \times 10^[-4} kg m^2$

Part B)

Height of the cylinder is of no use here to calculate the inertia

Part C)

Since we don't know about the viscosity data of the soup inside the cylinder so we can't say directly about the moment of inertia of the cylinder as $I = 1/2 mR^2$

8 0

3 years ago

A negative point charge q1 = 25 nC is located on the y axis at y = 0 and a positive point charge q2 = 10 nC is located at y =14

sergey [27]

Answer:

y = 0.1 m

Explanation:

The electrical power for point loads is

V = $k \sum \frac{q_i}{r_i}$ k Sum qi / ri

in this case

V = k ( $- \frac{q_1}{r_1 } + \frac{q_2}{r_2}$ )

indicate that V = 0

$\frac{q_1}{r_1} = \frac{q_2}{r_2}$

r₂ = $\frac{q_2}{q_1} r_1$

the distance r1 is

r₁ = y -0

the distance r2

r₂ = 0.14 -y

we substitute

0.14 - y = $\frac{10}{25}$ y

y ( $\frac{10}{25} + 1$ ) = 0.14

y 1.4 = 0.14

y = 0.14 / 1.4

y = 0.1 m

7 0

3 years ago

What is resistivity?

Rom4ik [11]

Answer:

Resistivity, electrical resistance of a conductor of unit cross-sectional area and unit length.

Explanation:

A characteristic property of each material, resistivity is useful in comparing various materials on the basis of their ability to conduct electric currents. High resistivity designates poor conductors.

3 0

3 years ago

What causes changes of states in matter?

miv72 [106K]

Changes in state of matter would be a physical change to whatever it is that you are changing so I think it would be B.Molecules because in order for something to change the molecules have to be moving apart from one another but I maybe wrong depending on what it is your looking at

3 0

3 years ago