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viktelen [127]
3 years ago
10

As an object fall in a gravitational field, its speed increases. This is an example of potential energy transforming into what?

Physics
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

potential energy is transformed into kinetic energy

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A gun with a muzzle velocity of 100 m/s is fired horizontally from a tower. Neglecting air resistance, how far downrange will th
Neporo4naja [7]

Answer:

313.6 m downward

Explanation:

The distance covered by the bullet along the vertical direction can be calculated by using the equation of motion of a projectile along the y-axis.

In fact, we have:

y(t) = h +u_y t + \frac{1}{2}at^2

where

y(t) is the vertical position of the projectile at time t

h is the initial height of the projectile

u_y = 0 is the initial vertical velocity of the projectile, which is zero since the bullet is fired horizontally

t is the time

a = g = -9.8 m/s^2 is the acceleration due to gravity

We can rewrite the equation as

y(t)-h = \frac{1}{2}gt^2

where the term on the left, y(t)-h, represents the vertical displacement of the bullet. Substituting numbers and t = 8 s, we  find

y(t)-h= \frac{1}{2}(-9.8)(8)^2 = -313.6 m

So the bullet has travelled 313.6 m downward.

6 0
3 years ago
Signs of fatigue while driving include __________.
svetlana [45]
I would say C. is the answer.
4 0
3 years ago
Read 2 more answers
If State A is heated, which of the other two states would it more closely resemble? Explain.
Cloud [144]
Well if its a solid that your heating up then it would closely resemble a liquid and a gas. would be able to give a better answer if you provided more information
6 0
3 years ago
A salt shaker sits 0.102 m from
Ivahew [28]

The maximum speed is 0.55 m/s

Explanation:

For an object in uniform circular motion, the force of friction between the object and the ground provides the centripetal force required to keep the body in motion. Therefore we can write:

\mu_s mg = m\frac{v^2}{r}

where the term on the left is the frictional force and the term on the right is the centripetal force, and where

\mu_s is the coefficient of static friction

m is the mass of the body

g is the gravitational acceleration

v is the speed of the body

r is the radius of the circular path

In this problem, we have:

\mu_s = 0.307

r = 0.102 m

g=9.8 m/s^2

Substituting and re-arranging, we find the maximum speed v at which the salt shaker can rotate:

v=\sqrt{\mu gr}=\sqrt{(0.307)(9.8)(0.102)}=0.55 m/s

Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

6 0
3 years ago
Need help ASAP please help
n200080 [17]

Answer:

.....

Explanation:

5 0
3 years ago
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