4.The objects have the same acceleration
Acceleration due to gravity is the acceleration acquired by an object when falling freely.
Under normal conditions, different objects has different accelerations depending on their mass and surface area. This is brought about by the air resistance they experience as they fall.
The case is difference when they the experiment is carried out in a controlled condition. That is in vacuum. I this case the acceleration of the objects is the same.
Explanation: The objects have the same acceleration i took the test and got it right
As we know that pulse is a short disturbance which is produced in a given medium
When this short disturbance propagates in the medium continuously then it forms a continuous disturbance.
This is known as waves
So the wave is combination of pulse that travels in a given medium with periodic interval of time.
So here correct answer will be
Wavelength = 4.0 m
As we know that the distance between first and sixth nodes is given as 10 m
so here between first and sixth node the total number of loops are
N = 5
length of one loop is given by
so here we have
so the wavelength of the standing wave here is of length 4.0 m
Answer:When the distance between the balls decreases, the size of the arrows increases. This shows that the gravitational pull between the balls also increases.
Granite is uplifted by the movement of tectonic plates. It will most likely become a sedimentary rock.
Answer: B. development of female sex
Development of female sex characteristic is not associated with the amount of cortisol in the body.
Cortisol is a steroid hormone secreted by the adrenal gland. It facilitates stress response, regulates blood sugar level and helps fight infections. High cortisol level leads to Cushing syndrome and low cortisol level leads to Addison disease.
Obesity is a symptom of Cushing syndrome while weight loss is a symptom of Addison disease. Thus levels of cortisol can affect body weight as well. When in a stressful situation, our body pumps excess cortisol.
Cortisol level in our body is generally high in the mornings and low in the midnight.
B. development of female sex characteristics
Cortisol is known as "Stress Hormone" for the reason that it is secreted in response to the stress. But it is more than just stress hormone and has a lot of other functions too.
It is made in the Adrenal glands. Almost all the body cells have cortisol receptors. This hormone helps in regulating blood pressure, blood sugar levels, metabolism of the body and fight infections. High levels of cortisol will result in "Cushing Syndrome" and low level of cortisol will result in "Addison disease". People with "Cushing Syndrome" gain weight rapidly while people with Addison Disease will lose weight rapidly.
The development of female sex characteristics doesn't depend on cortisol. It depends on the absence of Testosterone. If testosterone is present the fetus will develop into a male else a female.
D) Spinning a coil of wire near a large magnet.
From Faraday's law of induction, when a conducting coil of wire is placed in changing magnetic flux, an emf is induced which produces current in the coil.
Induced emf is given by:
A generator is based on the same principle.
The mechanical energy of rotating coil is converted to electrical energy when current is induced. Thus, the correct option is D) Spinning a coil of wire near a large magnet.