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Karolina [17]
3 years ago
11

PHYSICAL SCIENCE

Physics
2 answers:
Elina [12.6K]3 years ago
8 0
<span>B) Nuclear reactions can release much more energy than chemical reactions</span>
likoan [24]3 years ago
3 0
The answer is B.) Nuclear reactions can release much more energy than chemical reactions. Hope it helps! :) 
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What is the net charge?
aivan3 [116]
To find the net charge you take the number of protons and subtract the number of electrons, and the answer will be your charge.

This atom has 11 electrons AND 11 protons
11 - 11 = 0 net charge
6 0
3 years ago
A ____ shows all of the forces acting on an object.
il63 [147K]

Answer:

Free body diagram

Explanation:

A free body diagram shows all the forces acting on a body. Since force is a vector quantity, the magnitude and direction of the forces are shown in the free-body diagram.

Force is the push or pull on a body.

It can be via contact or without contact. Such non-contact forces acts via a force field.

In physics, this free body diagram is used extensively.

7 0
3 years ago
A Molniya orbit is a highly eccentric orbit of a communication satellite so as to provide continuous communications coverage for
likoan [24]

Answer:

Answer: 18.3 km/s

Explanation:

If a satellite in Molniya orbit has an apogee at 48.000 km as measured from the center of Earth, and a velocity of 3.7 km/s. Its velocity in at perigee would be 18.3 km/s.  

6 0
3 years ago
Read 2 more answers
You are out for a bicycle ride on a calm, windless day. You are heading northward on a level road and are experiencing a pressur
goldenfox [79]
The answer is (C)= zero but that it is swirling rapidly in all directions.
8 0
3 years ago
How many minutes will it take to drive to los angeles from san francisco if an average speed of 72mi/hr is maintained?
Sholpan [36]
The distance between Los Angeles and San Francisco is approximately 381.9mi. 
Divide this distance by the speed.
381.9/72 = 5.3
You are left with the time in hours. To convert to minutes, multiply by 60. 
5.3*60 = 318.25

Therefore, it will take 318.25 minutes.
6 0
3 years ago
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