Answer:
An example in which liquid pressure phenomena can be used in daily life is in Water blasting
Explanation:
Water blasting refers application of pressurized water to remove materials from the surface of objects.
There are different varieties of water blasting, including;
Hydrocleaning; Cleaning enabled by the use of high pressure water
Hydrodemolition; Demolition or removal of concrete using pressurized water
Hydrojetting; The spraying of water under pressure on surfaces in order to remove surface contaminants.
If there is no friction, the force that moves the box forward horizontally must be matched by the same force.
If there is friction, then the force moving it forward = frictional force + the additional force you need to add.
Answer:
2.5 N
because Average speed is equal to distance divided by time
The resultant force = 1000N + 1000N = 2000N
this is because the force is applied in the same direction and when this is the case you double the force to find the resultant force.
Answer:
The drag force is 
Explanation:
Given that,
Diameter = 60 cm
Length = 1 m
Air speed = 4.5 m/s
Temperature = 50°C
We need to calculate the Reynolds number
Using formula of Reynolds number
Put the value into the formula
We need to calculate the drag coefficient
Using formula of drag coefficient
Put the value into the formula
We need to calculate the drag force
Using formula of drag force
Put the value into the formula
Hence, The drag force is
