True or False, a sonographer can adjust the duration of an acoustic pulse since it depends upon the pulse's propagation speed.
Answers
Answer: True
Explanation: A sonographer can adjust the duration of an acoustic pulse because it depends on the pulse's propagation speed.
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When you mix sodium, which is a soft silvery metal, with chlorine, which is a yellowish gas, a solid white crystal called sodium chloride is formed. Which are the reactants? A.) sodium and sodium chloride B.) sodium chloride and chlorine C.) sodium and chlorine
When two objects collide, they experience the exact same amount of force in opposite directions.O TrueO False
What is a geologist’s role in the petroleum industry? stay with the drillers to examine rock and fossils brought to the surface chart information on a well log calculate the distance and direction of movement of the lost vein of ore locate environments in which petroleum forms
As a wave moves through a medium, particles are displaced and
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(speed of light in vacuum) divided by (speed of light in the substance) .
So the speed of light in a substance is
(299,792,458 meters per sec) divided by (the refractive index of the substance).
current 0.8 A?
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Answer: 88
Explanation:
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Sun has the greatest gravitational force.
To find the answer, we need to know about the gravitational force.
What is gravitational force?
- The force of attraction between any two objects due to the gravitational field is known as gravitational force.
- Mathematically, it is defined as -GMm/r².
How does gravitational force vary with mass?
- For a constant separation between two objects, the gravitational force is directly proportional to the mass of the objects.
- So, greater the mass, more the gravitational force.
Thus, we can conclude that as the sun has more mass than that of earth and moon, so it has more gravitational force.
Learn more about the gravitational force here:
#SPJ2
Answers
Answer:
Current, I = 8 Amps
Explanation:
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
Where;
V represents voltage measured in voltage.
I represents current measured in amperes.
R represents resistance measured in ohms.
Given the following data;
Resistance, R = 30 ohms
Voltage, V = 240V
To find the current;
Current, I = 8 Amps
Therefore, the current of the dryer is 8 Amperes.
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if paramagnetic it weekly magnetise in direction of magnetic field
if ferromagnetic it strongly magnetise in direction of magnetic field
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Answer:
It is primarily due the Sun.
Explanation:
Sun is the ultimate source of energy.
Due to the heat of Sun, the atmosphere heats up unevenly. Due to which there is a temperature difference between the two regions. As the temperature difference is maintained, the air flows, i.e., atmosphere is moving.
Similarly, water gets heat up unevenly in oceans. Due to which a temperature difference is maintained between two points in the ocean and thus the oeans are moving constantly.