Answer:
a. i. applied force
ii. gravitational force
iii. normal force of reaction
b. net force is zero
c. we move forward
d. frictional force
e. opposite dirction of force applied
Explanation:
Peak ....................................
Answer:
3: force acting on an object over time
Explanation:
The impulse formula is: change in momentum = force x time
Δp = f x t
We will calculate the synodic period, as it is the time it takes for the object to reappear at the same point in the sky with respect to the sun, when viewed from Earth. For this problem we will apply the concepts related to the orbital period ( Kepler's Third Law ) which is determined as
Where,
r = Radius/Distance
G = Gravitational Universal Constant
m = Mass of the object
Replacing,
Answer:
The Reynolds numbers for flow in the fire hose.
Explanation:
Given that,
Diameter = 6.40 cm
Rate of flow = 40.0 L/s
Pressure
We need to calculate the Reynolds numbers for flow in the fire hose
Using formula of rate of flow
Where, Q = rate of flow
A = area of cross section
Put the value into the formula
We need to calculate the Reynolds number
Using formula of the Reynolds number
Where, =viscosity of fluid
=density of fluid
Put the value into the formula
Hence, The Reynolds numbers for flow in the fire hose.