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4 years ago

10

In which of the following conditions does the velocity of the car NOT change?

1 answer:

AlekseyPX4 years ago

8 0

Where is the data to this question??

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Does time stop in a black hole

lbvjy [14]

Answer:

In standard GR, nothing exists at the center of a black hole. The center of a black hole is a singularity, and because GR fails at that point it is simply removed from the manifold. That means that the singularity is not part of spacetime.

To answer your question more realistically, we believe that GR is an approximate theory that fails well before you reach the center. Unfortunately, we have no good alternative theory with which to answer the question in the region where GR fails. We simply don’t have any data from that regime and it is very hard to formulate a good theory without data. So there very well could be time at the center, but we simply don’t have a good way to even guess.

4 0

3 years ago

Read 2 more answers

Which factor should change when comparing the boiling times of the liquids?

Andru [333]

Answer: B

Explanation:

7 0

3 years ago

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Draw the vector C⃗ =A⃗ +2B⃗ .

spin [16.1K]

Answer:

A) C is 2 units towards right

B) C is 9 units towards right and 3 units towards up

C) C is 4 units towards right and 1 unit towards down

Explanation:

Drawings are given in the attachment.

A)Since,

A is 4 units towards right,

B is 1 unit towards left,

Then,

C is 2 units towards right.

B) Since,

A is 4 units towards right and 2 units towards up,

B is 1 unit towards left,

Then,

C is 9 units towards right and 3 units towards up.

C) Since,

A is 4 units towards right and 2 units towards up,

B is 1 unit towards right, and 1 unit towards down

Then,

C is 4 units towards right and 1 unit towards down.

4 0

4 years ago

__________ receptors detect presence of acids in substances, whereas __________ receptors detect sodium in substances. A. Sour .

Irina18 [472]

Answer:

A sour and salt

Explanation:

7 0

4 years ago

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Steve tunes an old-fashioned radio that has an antenna made from a 3.0-cm-long solenoid with a cross-sectional area of 0.50 cm2

sukhopar [10]

Answer:

$L = 1.88\times10^-^4 H$

Explanation:

It is given that,

Length of the coil, l = 3 cm = 0.03 m

Area of cross section of the coil, $A=0.5\ cm^2=0.00005\ m^2$

Number of turns in the coil, N = 300

inductance of the coil is

$L=\dfrac{\mu_oN^2A}{l}$

$L=\dfrac{4\pi\times 10^{-7}\times (300)^2\times 5\times 10^{-5}}{0.03}\\L = 1.88\times10^-^4 H$

So, the inductance of the coil is 1.88× 10⁻⁴H

5 0

3 years ago