I think its a
I hope its right if it is sub to me Bearonic
Answer: the correct answer is B. it can be either rhymed or unrhymed! hope this helps
Answer:
Energy is 10,000 Joules.
Explanation:
It is given that, a 10,000 watt radio station transmits at 535 kHz. We have to write the number of joules transmitted per second.
We know that number of joules transmitted per second is called the power. Its SI unit is watts. Mathematically, the power of radio station is given by :
Where
W is the work done by radio station
t is the time taken.
According to relation :
So,
Hence, energy per second is 10,000 Joules.
If you are given a 10,000-watt radio station transmits at 535 kHz, then you just divide one by 535,000 Hz which is equal to 1.87 x 10^-6 seconds. Multiply this value by 10,000W and you get 0.019 Joules.
The volume of the cube is changing at the rate of 29.4 in³/s.
The rate of change of the sides of the cube is 0.2 in/s, which can be mathematically represented as :
Now the volume of the cube is given by:
V = x³
If we take the time derivative of the above equation then it gives the rate of change of volume with time, so:
At the instant x = 7 in, the rate of change of volume will be:
So the volume is changing at 29.4 cubic inches per second.
Learn more about differential equation:
Answer:
Therefore the volume of cube is change at the 29.4 cube in./s at that instant time.
Explanation:
Formula
Cube :
The volume of a cube is =
The side of length is x in.
Then volume of the cube is (V) =
∴ V =
Differentiate with respect to t
....(1)
Given that the side of the cube is increasing at the rate of 0.2 in/s.
i.e in/s.
And the sides of the cube are 7 in i.e x= 7 in
Putting and x= 7 in equation (1)
cube in./s
=29.4 cube in./s
Therefore the volume of cube is change at the 29.4 cube in./s at that instant time.
The food chain will collapse with the decreases and increases of other organisms caused by the removed organism.
wave in medium A, the wave in medium B has
(1) half the speed
(2) twice the speed
(3) half the frequency
(4) twice the frequency
The situation described in the question pertains to wave propagation. Given that wave speed in a given medium is constant, and the relationship between wave speed, wavelength, and frequency, the wave in medium B, which has double the wavelength of the wave in medium A, would have half the frequency of the wave in medium A.
This question is about wave propagation between two different mediums, labeled 'A' and 'B'. The fundamental principle involved here is the dependence of wave speed on the medium through which it travels. However, it's necessary to recognize that wave speed also depends on wavelength and frequency. This relationship is encapsulated by the formula v = fλ, where v is wave speed, f is frequency, and λ is wavelength.
From the problem statement, we understand that the wavelength doubles when going from medium A to medium B. We are then asked to deduce the corresponding change in wave speed or frequency. If the wavelength doubles and the wave speed remains the same, the only possible adjustment is for the frequency to halve. So, the wave in medium B, compared to the wave in medium A, would have half the frequency (3). This is because wave speed in a given medium is constant and as per the formula, if wavelength increases, frequency must decrease.
#SPJ11