Answer:
Forces observed by both is same as both
The frames are non-acceleration
Explanation:
Zweistein = Einstein
=
as tend to zero (0)
< as some quantity is subtracted from the force.
Answer:
1. 0.574 kJ/kg
2. 315.7 MW
Explanation:
1. The mechanical energy per unit mass of the river is given by:
Where:
Ek is the kinetic energy
Ep is the potential energy
v is the speed of the river = 3 m/s
g is the gravity = 9.81 m/s²
h is the height = 58 m
Hence, the total mechanical energy of the river is 0.574 kJ/kg.
2. The power generation potential on the river is:
Therefore, the power generation potential of the entire river is 315.7 MW.
I hope it helps you!
The average velocity is a vector magnitude we can find that its value is:
v = 3.63 10-2 m/ s
with a direction 74 to the South of the East
Giving parameters
- The tabulated displacements
- The time of the motion t = 300 s
To find
The velocity in a vector quantity that is defined as the change in displacement between time during the interval
v =
Where v is the veloicity, Δs and Δt are de positivo and time variation
To find the displacement let's use the Pythagoras' theorem
d =
We assume that the displacements to the right (east) and upwards (north) are positive
Δx = 17-14
Δx = 3 m
Δy = 12 -22.5
Δy = -10.5 m
The distance traveled is
d =
d = 10.9 m
The speed module is
v = 10.9 / 300
v = 3.63 10⁻² m / s
The direction of this velocity is given by the angle of this displacement can be found using trigonometry
tan θ =
θ = tan⁻¹
θ = tan⁻¹
θ = -74º
This angle is measured clockwise from the positive side of the x-axis.
Orea way to give this angle is
θ = 74 south of East
In conclusion the average speed is
v = 3.63 10-2 m / s
With a direction 74 to the South of the East
Learn more about average velocity here:
brainly.com/question/12322912
ANSWER: (ROLE of Producers in the cycle:totake in carbon dioxide from the atmosphere during photosynthesis and release carbon dioxide during respiration,ROLE of Consumers:to contribute to the carbon cycle when they perform respiration and expel carbon dioxide into the atmosphere)
Hope this Helps SOMEONE!!
,Thank you
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
As we know that frequency = 1 MHz
speed of electromagnetic wave is same as speed of light
So the wavelength is given as
Part b)
As we know the relation between electric field and magnetic field
Part c)
Intensity of wave is given as
Pressure is defined as ratio of intensity and speed