Answer:
particle's potential energy = 70J
Explanation:
From conservation of energy; K1 + Ue1 = K2 + Ue2
where K1 and K2 are the kinetic energies at two positions and Ue1 and Uue2 are the electrical potential energies at two positions.
k1 = 10J, Ue1 = 100J
K2 = 40J
substitute into K1 + Ue1 = K2 + Ue2
Ue2 = K1 + Ue1 - K2
= 10 +100 - 40
Ue2 = 70J
The centripetal force is the gravitational force of attraction between the Earth and the Moon.
Also, the gravitational force of attraction between the Earth and the Sun is the centripetal force that causes the Earth to stay in orbit around the Sun.
Also, the gravitational force of attraction between a TV satellite, a weather satellite, or a GPS satellite and the Earth is the centripetal force that causes each satellite to stay in orbit around the Earth.
Answer:
very small amounts of mass
Explanation:
Nuclear fission is the splitting of large atomic nucleus into smaller nuclei.
Answer: The answer is B. Add more solute (took test)
Explanation:
The force exerted on her is 1700 N
Explanation:
First of all, we start by calculating the acceleration of the car. Since its motion is a uniformly accelerated motion, we can use the following suvat equation:
![v^2-u^2 = 2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%20%3D%202as)
where
v = 0 is the final velocity of the car (which comes to a stop)
u = 14.0 m/s is the initial velocity
a is the acceleration
s = 3.0 m is the distance covered by the car during the collision
Solving for a,
![a=\frac{v^2-u^2}{2s}=\frac{0-14^2}{2(3)}=-32.7 m/s^2](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv%5E2-u%5E2%7D%7B2s%7D%3D%5Cfrac%7B0-14%5E2%7D%7B2%283%29%7D%3D-32.7%20m%2Fs%5E2)
And the negative sign means it is a deceleration.
Now we can find the force exerted on the passenger during the collision, using Newton's second law:
![F=ma](https://tex.z-dn.net/?f=F%3Dma)
where
F is the force
m = 52.0 kg is the mass of the passenger
is the acceleration (we ignore the sign since we are only interested in the magnitude of the force)
Substituting,
![F=(52.0)(32.7)=1700 N](https://tex.z-dn.net/?f=F%3D%2852.0%29%2832.7%29%3D1700%20N)
Learn more about acceleration and forces:
brainly.com/question/11411375
brainly.com/question/1971321
brainly.com/question/2286502
brainly.com/question/2562700
#LearnwithBrainly