The direction of the centripetal acceleration is towards Saturn
Explanation:
When an object moves in a circular motion, there must be a force that "pulls" the object towards the centre of the circle, keeping it in a circular motion. This force is called centripetal force.
As a consequence, due to the relationship between force and acceleration (Newton's second law), there is also an acceleration that points towards the centre: this acceleration is called centripetal acceleration.
The magnitude of the centripetal acceleration is given by:
where
m is the mass of the object
v is its speed
r is the radius of the circle
Therefore in this situation, the centripetal acceleration points towards the centre of the circle: therefore, towards Saturn, which occupies the centre of the circular trajectory.
Learn more about centripetal acceleration:
brainly.com/question/2562955
#LearnwithBrainly
Answer:
Explanation:
Wien's displacement law states that the radiation of the black body curve for different temperatures will give peak values at different wavelengths and this wavelength is related inversely to the temperature.
Formally the law of Wien displacement states that the black body's spectral radiation per unit of wavelength, will give peaks at the wavelength of which is given by the mathematical expression.
Here, b is proportionality constant with value of
The wavelength of the peak of the Gaussian curve is inversely related to temperature in degree kelvin.
Answer:
B. Cathode Ray Tube
Explanation:
In 1897, British physicist J. J. Thomson showed that cathode rays were composed of a negatively charged particle, which was later named the electron.
Answer:
a) The resistance of the calf between the electrodes is
b) The average resistivity of this part of the leg is
Explanation:
Hi
a) Using Ohm's law , solving for , we obtain
b) The volume of the calf is like a cylinder, so , with and , therefore . Then we can use , this is the average resistivity of this part of the leg.
Answer:
192.6 Hz
Explanation:
v = Velocity of sound in air = 335 m/s
Actual frequency = 200 Hz = f
Observed frequency = 208 Hz =
Speed of train =
Doppler effect when the source is moving towards observer
Doppler effect when the source is moving away from observer
∴ Frequency he observes as the train moves away is 192.6 Hz