Answer:
conserved
Explanation:
During this process the energy is conserved
Answer:
d. 3332.5 [N]
Explanation:
To solve this problem we will use newton's second law, which tells us that the sum of forces is equal to the product of mass by acceleration.
Here we have two forces, the force that pushes the car to move forward and the friction force.
The friction force is equal to the product of the normal force by the coefficient of friction.
f = N * μ
f = (m*g) * μ
where:
N = weight of the car = 2150*9.81 = 21091.5 [N]
μ = 0.25
f = (21091.5) * 0.25
f = 5273 [N]
Now as the car is moving forward, the car wheels move clockwise. The friction force between the wheels of the car and the pavement must be counterclockwise, i.e. counterclockwise. Therefore the direction of this force is forward. This way we have:
F + f = m*a
F + 5273 = 2150*4
F = 8600 - 5273
F = 3327 [N]
Therefore the answer is d.
Answer: I would either say wind or sunlight
Explanation:
I don’t think it would be clouds or rain
Hope that helps
Answer:
0.78 m
Explanation:
I just did a hw question for this its just 344 divided by 440
Answer:
a. 
b. 
c. 
d. 
Explanation:
a. The speed is the distance travelled divided by the time:

b. The magnitud of the centripetal acceleration is given by:

c. According to Newton's second law, at the top we have:

d. According to Newton's second law, at the bottom we have:
