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3 years ago

Why are we mentley unstable to time travle

Physics

1 answer:

leva [86]3 years ago

8 0

Answer:

Mental time travel has been studied by psychologists, cognitive neuroscientists, philosophers and in a variety of other academic disciplines. Major areas of interest include the nature of the relationship between memory and foresight, the evolution of the ability (including whether it is uniquely human or shared with other animals), its development in young children, its underlying brain mechanisms, as well as its potential links to consciousness, the self, and free will.

Explanation:

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Two boxes need to be moved into storage. Jamal and Jude each want to move a box. The force of gravity on both the boxes is 50 N.

jolli1 [7]

Answer:

Explanation:

Remark

If both are trying to get the box into storage and they can only use lifting to do it, then Jude won't be able to do it. This assumes they cannot slide the boxes. Jude is not using enough force to overcome gravity so the box will just sit.

On the other hand Jamel is putting enough force to not only lift the box but it will move upwards against gravity. If we ignore that fact, then Jamel will get his box into storage.

Answer: A

4 0

2 years ago

A sky diver steps from a high-flying helicopter. If there were no air resis- tance, how fast would she be falling at the end of

vodomira [7]

speed at end is accn of gravity x time

9.81x12=just over98.1m/s

4 0

3 years ago

4. How much energy must be absorbed by water with a mass of 0.5 kg in order to raise the temperature from 30°C to

Mandarinka [93]

Answer:

Q = 73325 J or 73.325 KJ

Explanation:

Given the following data;

Specific heat capacity of water = 4190

Mass = 0.5kg

dt = 65 - 30 = 35°C

Heat capacity is given by the formula;

Q = mcdt

Where,

Q represents the heat capacity.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

Substituting into the equation, we have:

Q = 0.5 * 4190 * 35

Q = 73325 Joules.

6 0

3 years ago

A particle has two down quarks and one up quark. What is the charge of that particle?

andreev551 [17]

The particle would be a neutron so a neutral charge. You can say the charge is 0.

3 0

3 years ago

Read 2 more answers

In one type of mass spectrometer, ions having the same velocity move through a uniform magnetic field. The spectrometer is being

Sati [7]

Answer:

r = 0.5297 m

Explanation:

In this exercise we use Newton's second law where the force is magnetic

F = ma

centripetal acceleration

a = v² / r

F = q v x B = q v B sin θ

where the angle between the velocity and the magnetic field is 90º, therefore the sin 90 = 1

we substitute

q v B= m v² / r

r = $\frac{m v^2 }{qv B}$

the mass of each isotope is

12C

m12 = 6 m_proton + 6 m_neutrons

m12 = (6 1,673 +6 1,675) 10⁻²⁷

m12 = 20.088 10-27 kg

14C

m14 = 6 m_proton + 8 m_neutron

m14 = (6 1,673 + 8 1,675) 10-27

m14 = 23,438 10⁻²⁷ kg

in the exercise they indicate that the velocity of the two particles is the same, therefore with the initial data we can calculate the parameters that do not change in the experiment.

$\frac{v}{qB} = \frac{r}{m_{12}}$

v / qB = 0.454 / 20.088 10⁻²⁷

v / qb = 2.26 10²⁵

this quantity remains constant, let's use the other data to calculate the radius

r = 23.438 10⁻²⁷ 2.26 10²⁵

r = 5.297 10⁻¹ m

r = 0.5297 m

7 0

3 years ago