Answer:
sphere moves with a constant terminal velocity.
Explanation:
mass of sphere, m = 0.5 kg
velocity downward, v = 8 m/s
buoyant force = 4 N
fluid friction force = 4 N
Weight of the sphere is acting downward.
W = mg = 0.5 x 10 = 5 N
When the object is immersed in a fluid and it moves in the fluid with constant velocity, it means the net force acting on the object is zero, and the object attains a terminal velocity.
Answer:
The speed of the water shoot out of the hole is 20 m/s.
(d) is correct option.
Explanation:
Given that,
Height = 20 m
We need to calculate the velocity
Using formula Bernoulli equation
Where,
v₁= initial velocity
v₂=final velocity
h₁=total height
h₂=height of the hole from the base
Put the value into the formula
Hence, The speed of the water shoot out of the hole is 20 m/s.
-1^10
centi=10 mm and mm=1/10=10^-1 cm
Answer:
Cp = 0.142 [cal/g*°C].
Explanation:
In order to solve this problem, we must use the following equation of thermal energy.
where:
Q = heat energy = 60 [cal]
Cp = specific heat [cal/g*°C]
T_final = final temperature = 10[°C]
T_initial = initial temperature =40[°C]
m = mass of the substance = 14 [g]
Now replacing:
Answer:
The correct answer is - true.
Explanation:
Changes in the higher authorities or managers or coworkers can be a warning sign before a layoff, however, a company or organization needs to give an official notice before a particular time period before the layoff.
The layoff is a temporary suspension or permanent termination from the employment of an employee due to reasons related to business such as reducing manpower or staff and less work in the organization. These reasons can lead to a change in the behavior of the managers, coworkers, and subordinates.