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kramer
3 years ago
11

What happens when two charged objects physically contact each other?

Physics
1 answer:
kupik [55]3 years ago
6 0

If a negative object is used to charge a neutral object, then both objects become charged negatively if this answer is wrong I'm sorry.

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A baseball player slides into third base with an initial speed of 4.0 m/s . if the coefficient of kinetic friction between the p
satela [25.4K]
The work done by the friction force to stop the player is equal to his loss of kinetic energy:
W= \Delta K

The work done by the friction force is the magnitude of the force \mu m g times the distance covered by the player, d:
W= \mu mg d

The loss in kinetic energy is simply equal to the initial kinetic energy of the player, since the final kinetic energy is zero (the player comes to rest):
\Delta K=K_i =  \frac{1}{2}mv^2

Substituting into the first equation, we get:
\mu m g d=  \frac{1}{2}mv^2
from which we find d, the distance covered by the player:
d= \frac{v^2}{2 \mu g}= \frac{(4.0 m/s)^2}{2 \cdot 0.4 \cdot 9.81 m/s^2}=2.04 m
4 0
3 years ago
A large 2.3 kg bird, searching for food, spots a large, 0.391 kg bug hovering in its vicinity. If the bird is traveling at 8.2 m
aleksandr82 [10.1K]

Your answer is 7.009m/s

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Hope this helps -John

8 0
3 years ago
Write a story that includes (in order) the 7 waves of the electromagnetic spectrum. Try incorporating a characteristic about eac
Ede4ka [16]

Answer:

sorry im doing a challenge but i will have someone answer it

Explanation:

5 0
3 years ago
If a laboratory fire erupts, immediately is it A. Notify your instructor. B. Run for the fire extinguisher or C. Throw water on
drek231 [11]

Answer:

b

Explanation:

if there is a fire there is no time to waist

8 0
3 years ago
Una bicicleta que circula a 18km/h y se detiene en 0.8 segundos. Calcular la aceleración.
andrezito [222]

The acceleration is -6.25 m/s^2.

Explanation:

The acceleration of an object is given by:

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time taken for the velocity to change from u to v

For the bike in this problem, we have:

u=18 km/h \cdot \frac{1000 m/km}{3600 s/h}=5 m/s is the initial velocity

v = 0 is the final velocity (the bike comes to a stop)

t = 0.8 s is the time interval

Substituting, we find the acceleration:

a=\frac{0-5}{0.8}=-6.25 m/s^2

Learn more about acceleration here:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

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