according to newton's second law of motion of the net force acting on the object increases while the mass of the object remains constant, what happens to the acceleration?
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Answer:
The Acceleration will increase
Explanation:
Newton's Second Law of motion: It states that the rate of change of momentum is directly proportional to the applied force and takes places along the direction of the force.
It can be expressed mathematically as,
F ∝ m(v-u)/t
Where (v-u)/t = a
F = kma.
F = force, m = mass of the body, a = acceleration, k = constant of proportionality which tend to unity for a unit force, a unit mass, and a unit acceleration.
Therefore,
F = ma.
From the equation above,
If the net force acting on a body increase, while the mass of the body remains constant, the acceleration will also increase.
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When a squid pushes against the water, the squid moves forward because the ______________ pushes against the _______________.
b. increase the influence and power of the United States among the nations of the world.
c. keep the wealthy and powerful from taking advantage of small business owners and the poor.
d. help business trusts remain competitive.
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Answers
Answer:
Explanation:
As the boy is riding from top to bottom of the hill his Potential energy gradually decreasing and simultaneously converting into the Kinetic energy.
At the top, his Potential Energy is maximum and kinetic energy is minimum i.e. zero
In the middle of the hill, he possesses both Potential and kinetic energy with equal magnitude.
At the bottom whole Potential energy is converted into Kinetic energy.
Thus Potential Energy is maximum at the top while Kinetic energy is maximum at the bottom.
Answers
Answer:
Elements of weather
Explanation:
Weather can be defined as the atmospheric conditions of a particular area over a short period of time.
Air pressure, humidity, clouds and temperature are all called elements of weather. The other elements of weather are;
- Wind
- Precipitation.
Air pressure, humidity, clouds, and temperature are all part of weather and climate studies. They represent the weight of air above a point on the earth's surface, the amount of water vapor in the atmosphere, collections of airborne water droplets or ice crystals, and the heat energy in the atmosphere, respectively.
Air pressure, humidity, clouds, and temperature are all components of weather and climate studies, key elements of geography and meteorology. Air pressure is the force exerted by the weight of air above any given point on Earth's surface. Humidity refers to the amount of water vapor in the atmosphere. Clouds are collections of water droplets or ice crystals that form in the Earth's atmosphere when water vapor condenses. Temperature is a measure of the amount of heat energy in the atmosphere, usually expressed in degrees Celsius or Fahrenheit. The combination of all these factors form different weather patterns and influence the Earth's overall climate.
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B. crankshaft.
C. piston.
D. spark plug.
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Answer;
C. piston.
Explanation;
- A piston is a cylindrical component of the engine that slides back and forth in the cylinder bore by forces produced during the combustion process. It is the can shaped engine component that moves up and down the cylinder and is the main moving part of an engine.
- It acts as a movable end of the combustion chamber. Pistons are made of cast aluminium alloy to allow excellent and light weight thermal conductivity. They consists of a piston head, piston pin bore, piston pin, skirt piston rings, ring grooves and ring lands.
b) E = t – P
c) E = P + t
d) E = P × t
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Answer:
The equation of amount of electrical energy used .
d is correct option.
Explanation:
Electrical energy :
The electrical energy is the chemical energy which is consumed in the electric circuit.
Power :
Electric power is the rate at which energy is transferred from one part to another part of electric circuit.
The amount of electric energy is defined as,
The amount of electrical energy is the product of the power and time.
Where, E = energy transferred
P = Power
t = time
Hence, The equation of amount of electrical energy is used .
cause E=U and in power formula is p=U÷t or E÷t so E=p×t
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The displacement covered by the bee that flies 2 meters east, 3 meters east, and 5 meters north is 7.05 meters.
What is Displacement?
Displacement of an object can be defined as the actual change in the position of an object. It is a vector quantity because it has both the direction and the magnitude.
The bee travels 2 meter east and 3 meters east. Therefore, the total distance covered in the east direction is (2+3) meters = 5 meters.
The bee travels 5 meters in the north direction. This makes a square of 5 meters dimension and in this condition, the displacement covered by the bee will be the diagonal of the square. Therefore, the total displacement of the bee can be calculated as:
Diagonal of square = a
where, a = side of the square
Side of the square = 5 meters
Diagonal of the square = × 5
= 1.41
Therefore, diagonal = 1.41 × 5
Displacement of the bee = 7.05 meters
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