Answer:
μ = 0.375
Explanation:
F = Applied force on the trash can = 75 N
W = weight of the trash can = 200 N
f = frictional force acting on trash can
Since the trash can moves at constant speed, force equation for the motion of can is given as
F - f = 0
75 - f = 0
f = 75 N
μ = Coefficient of friction
frictional force is given as
f = μ W
75 = μ (200)
μ = 0.375
Answer:
The answer to your question is: V2 = 1 l
Explanation:
Data
P1 = 200 kPa
P2 = 300 kPa
V1 = 1.5 l
V2 = ?
Formula
P1V1 = P2V2
V2 = (P1V1) / P2
V2 = (200 x 1.5) / 300
V2 = 1 l
The acceleration of the box is approximately ![1 m/s^2](https://tex.z-dn.net/?f=1%20m%2Fs%5E2)
Explanation:
According to Newton's second law of motion, the net force acting on the box is equal to the product between its mass and its acceleration:
![\sum F = ma](https://tex.z-dn.net/?f=%5Csum%20F%20%3D%20ma)
where
is the net force
m = 12.0 kg is the mass of the box
a is the acceleration
The net force can be written as
![\sum F = F_a - F_f](https://tex.z-dn.net/?f=%5Csum%20F%20%3D%20F_a%20-%20F_f)
where
is the applied forward force
is the friction force
Combining the two equations,
![F_a-F_f=ma](https://tex.z-dn.net/?f=F_a-F_f%3Dma)
And solving for the acceleration,
![a=\frac{F_a-F_f}{m}=\frac{20-9}{12}=0.9 m/s^2\sim 1 m/s^2](https://tex.z-dn.net/?f=a%3D%5Cfrac%7BF_a-F_f%7D%7Bm%7D%3D%5Cfrac%7B20-9%7D%7B12%7D%3D0.9%20m%2Fs%5E2%5Csim%201%20m%2Fs%5E2)
Learn more about Newton's second law:
brainly.com/question/3820012
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I think you have them all marked correctly
7. They carry hereditary material from parent
8. 50 percent
1. Nutrition
2. X-linked dominant
If Im wrong Im sorry. its been like 4 years since i took biology but i remember some things