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3 years ago

The density of glycerin is 1.26 g/cm3. Which substance will sink in glycerin?

Physics

2 answers:

adell [148]3 years ago

8 0

Answer:aluminum (2.70 g/cm3)

Explanation:

Mademuasel [1]3 years ago

7 0

The answer to your question is aluminum.

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Which type of light ray can produce identical but reversed

barxatty [35]

Answer: Identical rays are refracted upon entering

Explanation:

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3 years ago

Read 2 more answers

Commercially-available hybrid vehicles, such as the Toyota Prius, use electrical batteries to store energy for later use. Howeve

Bad White [126]

(A) $4.2\cdot 10^5 J$

The energy stored by the system is given by

$E=Pt$

where

P is the power provided

t is the time elapsed

In this case, we have

P = 60 kW = 60,000 W is the power

t = 7 is the time

Therefore, the energy stored by the system is

$E=(60,000 W)(7 s)=4.2\cdot 10^5 J$

(B) 4830 rad/s

The rotational energy of the wheel is given by

$E=\frac{1}{2}I \omega^2$ (1)

where

$I$ is the moment of inertia

$\omega$ is the angular velocity

The moment of inertia of the wheel is

$I=\frac{1}{2}MR^2=\frac{1}{2}(5 kg)(0.12 m)^2=0.036 kg m^2$

where M is the mass and R the radius of the wheel.

We also know that the energy provided is

$E=4.2\cdot 10^5 J$

So we can rearrange eq.(1) to find the angular velocity:

$\omega=\sqrt{\frac{2E}{I}}=\sqrt{\frac{2(4.2\cdot 10^5 J)}{0.036 kg m^2}}=4830 rad/s$

(C) $2.8\cdot 10^6 m/s^2$

The centripetal acceleration of a point on the edge is given by

$a=\omega^2 R$

where

$\omega=4830 rad/s$ is the angular velocity

R = 0.12 m is the radius of the wheel

Substituting, we find

$a=(4830 rad/s)^2 (0.12 m)=2.8\cdot 10^6 m/s^2$

7 0

4 years ago

According to the Declaration, when do people have a right to revolution?

babunello [35]

Locke said that under natural law, all people have the right to life, liberty, and private property; under the social contract, the people could instigate a revolution against the government when it acted against the interests of citizens, to replace the government with one that served the interests of citizens.

3 0

2 years ago

Can someone help me asap, please?

Anon25 [30]

Answer:

kinetic energy, form of energy that an object or a particle has by reason of its motion.

potential energy, stored energy that depends upon the relative position of various parts of a system

6 0

2 years ago

Very small particles moving in viscous fluids experience a drag force proportional to

Likurg_2 [28]

Answer:

t = 3w/gk

y = w²/gk²(2+e^-gkt/t)

Explanation:

The detailed step by step solution can be found in the attachment below.

Vt = W/k. It is the velocity of the body when the drag force = the weight of the particle.

I steps have been explaine6in the attachments below.

3 0

3 years ago