The total pressure exerted by a person when he stands on both the feet is 10000000 Pascals
Explanation:
Given data
Weight of the person= 500 N
Area of the foot= 0.5 m ²/ 100 ×100
To find the pressure exerted we have the formula,
Pressure exerted= force/area
Pressure exerted= 500 ×100×100/0.5
Pressure exerted=10000000 Pascals
The total pressure exerted by a person when he stands on both the feet is 10000000 Pascals
Answer:
g = 4.7 × m/
Explanation:
Given that the mass of the satellite = 700 kg, and 10,000 m above the earth;s surface.
From Newton's second law,
F = mg ............... 1
From Newton's gravitation law,
F = .................. 2
Where: F is the force, G is the gravitational constant, M is the mass of the first body, m is the mass of the second body, g is the gravitational force and r is the distance between the centers of the two bodies.
Equate 1 and 2 to have,
mg =
⇒ g =
But; G = 6.67 × N , M = 700 Kg, r = 10000 m
Thus,
g =
=
= 4.669 × m/
The force of gravity on the satellite is 4.7 × m/.
The force of gravity on a 700kg satellite 10km above the Earth's surface can be calculated using the equation F = mg.
The force of gravity on an object is given by the equation F = mg, where F is the force of gravity, m is the mass of the object, and g is the acceleration due to gravity.
On Earth's surface, the acceleration due to gravity is approximately 9.8 m/s^2. However, as the satellite is 10 km above the Earth's surface, the force of gravity will be slightly less than that.
To calculate the force of gravity on the satellite, we can use the equation F = mg. Substituting the mass of the satellite (700 kg) and the acceleration due to gravity (9.8 m/s^2 - (9.8 m/s^2 * (10 km/ 6371 km))), we can find the force of gravity.
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Calculate the current in the 200.-ohm resistor.
Answer:
current in 200ohm resistor = 0.05A
Explanation:
for current in 200 ohm resistor,
let 'I2' and 'R2' be current and resistance in 200 ohm resistor,
potential difference remains same thorughout the circuit because they are connected in parallel,
we have,
V=10V
R2=200 ohm
I2=?
then by ohm's law,
V=I2*R2
10=I2*200
I2=0.05A
The power dissipated by the 100-ohm resistor is 400 watts. The current in the 200-ohm resistor is 0.05 Amps.
To determine the power dissipated by the 100-ohm resistor, we can use the formula P = I^2 * R, where P is the power, I is the current, and R is the resistance. Since the current is the same throughout a parallel circuit, the current flowing through the 100-ohm resistor is the same as the total current in the circuit. Using the formula P = I^2 * R, we can calculate the power dissipated by the 100-ohm resistor as P = (2.00 A)^2 * 100 ohms = 400 watts.
To calculate the current in the 200-ohm resistor, we can use Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage supplied by the battery is 10.0 volts. Using Ohm's Law, we can calculate the current in the 200-ohm resistor as I = V / R = 10.0 V / 200 ohms = 0.05 Amps.
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No link answers please
Boyle’s Law states that, when temperature is held constant, the pressure and volume of a gas are inversely proportional.
Gas laws are defined as the laws that govern the properties of gases by determining the relationships between the pressure, volume and temperature of the gases.
Here,
Boyle's law is the gas law that governs the relationship between the pressure and volume of gases.
Boyle's law states that, for an ideal gas at a unit mass, the pressure of the gas is inversely proportional to the volume of the gas, at constant temperature.
P 1/V
PV = a constant
When the temperature of the gas is held constant.
Hence,
Boyle’s Law states that, when temperature is held constant, the pressure and volume of a gas are inversely proportional.
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Answer:
When temperature is held constant, the pressure and volume of a gas are not proportional.
Explanation:
That is Boyle's Law
Light from the stars is visible light and travels in longitudinal waves. Longitudinal waves require a medium to travel; therefore, light is reflected off particles of matter in space to be seen on the earth.
B.
Light from the stars is visible light and travels as surface to surface waves. Surface waves require a medium to travel; therefore, light travels from the surface of the star to the surface of the earth.
C.
Light from the stars is visible light and travels in electromagnetic waves. Electromagnetic waves require a medium to travel; therefore, light is reflected off particles of matter in space to be seen on the earth.
D.
Light from the stars is visible light and travels in electromagnetic waves. Electromagnetic waves do not require a medium to travel; therefore, light travels through the vacuum of space to be seen on the earth.
I think it is D
Answer:
True
Explanation:
An optical fiber is like a glass tube with very small radius. The light travels through these fiber following Total Internal Reflection principle. The movement of the light is not affected by the external factor or the shape of the fiber as long as it is intact. Even if it is twisted or curved, the light will travel as long as the fiber is not damaged physically.