Answer:
It helps us to know or be aware of some things that happen regular and teaches us about laws that guide us
Given that a car is in the road, there is only movement in the x-direction. There is no movement in the y-direction.
Looking at the y-direction for the normal force:
F = N - mg
0 = N - mg, (no movement in y-dir.)
N = mg
N = (990)(9.8)
N = 9702 newtons
The normal force exerted on the car by the road is 9702 newtons.
Gravity
Explanation:
Johanna's table:
Circular motion Centripetal force
space station in orbit X
a child in a swing
a ball on a string
The type of centripetal force at work in a space station in orbit is the force of gravity.
The force of gravity is constantly pulling and attractive all objects and bodies to its center.
This force is directed towards the center of the orbit of the earth and it is a centripetal force
- Gravity attracts any object that has mass.
- The mass of the satellite and the earth keeps it in orbit and prevents it from moving out of orbit.
- The more the mass the more the gravitational attraction.
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Answer:
the pressure at the bottom of the tank is 12 kPa
Explanation:
The computation of the pressure at the bottom of the tank is as follows:
as we know that
Pressure = hdg
where
H = Height
d = density
Now the pressure is
= 1.5m × 800 × 10
= 12,000 Pa
= 12 kPa
Hence, the pressure at the bottom of the tank is 12 kPa