Answer:
all chemical reaction involved in early enough energy used to break bonds in reactants and energy released when you want from product
Edith a remake reaction absorb energy and epidemic reaction release energy flow of conversion of energy states that matter cannot be created or destroyed .
To solve this problem we will apply the Wien displacement law (in honor of Wilhelm Wien) which is a law of physics that states that there is an inverse relationship between the wavelength at which the emission peak of a body occurs Black and its temperature. Mathematically, the law is:
Here,
T = Temperature
We know at the same time that the range of red to infrared wavelength is
Calculating each quasi infinite point of this range would be somewhat complex, so it is easier to replace temperatures and see if the temperature falls on the range. We can realize that the first option is the correct one, because:
Therefore the temperature is A. 3500K
When a body performs a uniform circular motion, the direction of the velocity vector changes at every moment. This variation is experienced by the linear vector, due to a force called centripetal, directed towards the center of the circle that gives rise to centripetal acceleration, the mathematical expression is given as,
Where,
v = Tangential Velocity
r = Radius
The linear velocity was 2010m/s in a radius of 0.159m, then the centripetal acceleration is
Therefore the centripetal acceleration of the end of the rod is
Answer:
a) Wavelength of the ultrasound wave = 0.0143 m <<< 3.5m, hence its ability is not limited by the ultrasound's wavelength.
b) Minimum time difference between the oscillations = Period of oscillation = 0.00952 ms
Explanation:
The frequency of the ultrasound wave = 105 KHz = 105000 Hz. The speed of ultrasound waves in water ≈ 1500 m/s. Wavelength = ?
v = fλ
λ = v/f = 1500/105000 = 0.0143 m <<< 3.5m
This value, 0.0143m is way less than the 3.5m presented in the question, hence, this ability is not limited by the ultrasound's wavelength.
b) Minimum time difference between the oscillations = The period of oscillation = 1/f = 1/105000 = 0.00000952s = 0.00952 ms
Hope this helps!