Frequency has the unit hertz.
Answer:
Explanation:
As we know that the speed of sound in air is given as
now the rate of strike is 1 stroke per second
so distance is given as
now we will have
so the distance is given as
The density is
Explanation:
The problem is asking to find the density of the object.
The density of an object is given by:
where
m is the mass of the object
V is its volume
For the object in this problem, we have:
m = 35 g (mass)
(volume)
Substituting , we find the density:
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Shear stress = 1.0 N/m² (Pa)
For water, the dynamic viscosity = 10⁻³ Pa-s at 20°C.
The velocity gradient required = (Shear stress)/(Dynamic viscosity)
= (1.0 Pa)/( 10⁻³ Pa-s)
= 10³ 1/s
Answer: 10³ s⁻¹
Answer:
t = 0.414s
Explanation:
In order to calculate the time that the ball takes to reach home plate, you assume that the speed of the ball is constant, and you use the following formula:
(1)
d: distance to the plate = 18.4m
v: speed of the ball = 160.0km/h
You first convert the units of the sped of the ball to appropriate units (m/s)
Then, you replace the values of the speed v and distance s in the equation (1):
THe ball takes 0.414s to reach the home plate