All categories

3 years ago

Suppose a supernova occurs in a star that initially had 10 solar masses. why would the likely end result not be a black hole?

1 answer:

7 0

<span>When a supernova occurs, a very large portion of the stars' mass is lost. In order to create a black hole, at least 30 solar masses is needed, so starting with 10 and losing a large portion of that mass is nowhere near enough to create a black hole. The end result would be a Neutron star.</span>

You might be interested in

Cantaloupe provides the highest level of Vitamin A and when consumed is 10 calories. Which fruit combined with cantaloupe will o

astra-53 [7]

<span>plums, they contain antioxidants and a lot of vitamin C and they're only 30 cals,</span>

8 0

2 years ago

Which of the following is an example of qualitative data

NemiM [27]

Qualitative data is easy to explain. You either agree or disagree in writing. Wrong. You agree, disagree, or qualify. Meaning agree to somewhat extend, but not entirely. So you can agree that people should walk instead of talk in the progressive manner, but not in the impulsive manner.

3 0

2 years ago

if an electron in an electron beam experiences a downward force of 2.0x10^-14N while traveling in a magnetic field of 8.3x10^-2T

11111nata11111 [884]

Answer:

$1.51\cdot 10^6 m/s$ north

Explanation:

When a charged particle moves in a magnetic field, the particle experiences a force given by the formula:

$F=qvB sin \theta$

where

q is the magnitude of the charge

v is its velocity

B is the magnetic field

$\theta$ is the angle between the directions of v and B

In this problem,

$q=1.6\cdot 10^{-19}C$ (charge of the electron)

$B=8.3\cdot 10^{-2} T$ (strength of magnetic field)

$F=2.0\cdot 10^{-14} N$ (force)

$\theta=90^{\circ}$

Therefore, the velocity is

$v=\frac{F}{qB sin \theta}=\frac{2.0\cdot 10^{-14}}{(1.6\cdot 10^{-19})(8.3\cdot 10^{-2})(sin 90^{\circ})}=1.51\cdot 10^6 m/s$

The direction of the force is perpendicular to both the direction of the velocity and the magnetic field, and it can be found using the right-hand rule:

. Thumb: direction of the force (downward) --> however the charge is negative, so this direction must be reversed: upward

- Middle finger: direction of the field (west)

- Index finger: direction of velocity --> north

So, the electron is travelling north.

8 0

2 years ago

11. A ball rolls across a table of height 1.2 meters, leaves the table with a speed of ve, and lands 0.69m

rjkz [21]

Answer:

sorry don't know i just need points

Explanation:

5 0