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3 years ago

12

A rifle with a longer barrel can fire bullets with a larger velocity than a rifle with a shorter barrel. a) Explain this using t

he impulse-momentum theorem. b) Explain this using the work-energy theorem

1 answer:

n200080 [17]3 years ago

6 0

Its mainly about how much gunpowder is used in the shell. Thats all I got. XD

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In the early part of the 1900s, psychologists who broke down thought processes into their basic elements and analyzed them were

Svetlanka [38]

Answer: Cognitive

Explanation:

Cognition can be defined as the process of obtaining the knowledge and learning through the experience, senses and thought. Many psychologists can have similar experiences of learning the psychological framework of the society or at the individual level. Thus this can be said that the cognitive psychologist may have similar interests.

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3 years ago

Which quantity is a scalar quantity?

Vsevolod [243]

The answer is Area ,area

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3 years ago

What the kinetic Energy of 80kg<br> object this is Moving with a Speed<br> of 23 m/s

Katyanochek1 [597]

Explanation:

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½×800kg×(23m/s)²
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2 years ago

The stopping sight distance for a car traveling at 50 mph is 461 ft (including both perception-reaction distance and braking dis

Ivan

Answer:

2.08 s

Explanation:

We are given that

Speed,v=50mph=73.3ft/s

1 mile=5280 feet

1 hour=3600 s

Distance,d=461 ft

t=2.5 s

v'=60 mph=88 ft/s

We have to find the perception reaction time.

Perception reaction distance= $d_p=vt=73.3\ti es 2.5=183.25 feet$

$d_p=d'_p$

$d'_p=v't$

$t'=\frac{183.25}{88}=2.08 s$

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3 years ago

A tape diagram. 0 dollars is 0 percent. Question mark dollars is 23 percent. 52 dollars is 100 percent. Jared has earned 23% of

Jobisdone [24]

17.15 :)

rigt on ur mom

*death

6 0

3 years ago

Read 2 more answers