Human activities can have an impact on natural disasters.
Answers
By definition, we have to:
The environmental impact are the consequences that some of the human activities produce on the environment.
The concept can be extended to the effects of a catastrophic natural phenomenon.
Human activities, such as fuel combustion and deforestation, have intensified the greenhouse effect, causing global warming.
It has been estimated that if emissions of greenhouse gases continue at the current rate, the temperature of the planet could exceed historical values in 2047, with harmful effects on ecosystems, biodiversity and endanger the livelihood of people on the planet.
Answer:
True.
Human activities can have an impact on natural disasters.
Human activities can have an impact on natural disasters is true
What is natural disasters?
The things humans do can affect natural disasters. Natural disasters are events that occur because of nature and its processes. However, human actions can also make these events happen more often, be worse, and affect more people in different ways.
Climate change is happening because of humans. We are releasing greenhouse gases when we burn fossil fuels and when we cut down trees. This is affecting the Earth's climate. This can cause more often and stronger natural disasters like hurricanes, droughts, heatwaves, and heavy rainfall.
Hence, Human activities can have an effect on natural disasters is a true statement.
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Human activities can have an impact on natural disasters.true or false
Related Questions
A 50 kg ball rolls down the street at 5 m/s.Calculate the momentum of the ball.
show how you would connect three resistors each of resistance 6 ohm so that the combination has a resistance of first 9 ohm second 4 ohm
The quantum mechanical model of the atom ____. a. defines the exact path of an electron around the nucleus b. was proposed by Niels Bohr c. involves finding an electron somewhere in a specific orbital d. has many analogies in the visible world
50 J of work was performed in 20 seconds. how much power was used to do this task?
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Answer:
How are we expected to make an island
Answers
The correct answer is:
Vertical Free Fall and Constant Horizontal Motion
Explanation:
A projectile proposal is a form of motion confronted by an object or particle that is started near the Earth's surface and transfers along a rounded path under the action of gravity only. The vertical force acts perpendicular to the parallel motion and will not affect it since perpendicular segments of motion are confident of each other. Thus, the projectile travels with a constant horizontal velocity and a descending vertical acceleration.
(b) Determine the turning point of the mass. (Select all that apply.)
Point A
Point B
Point C
Point D
Point E
Answers
Final answer:
The speed at different points and the turning point of the mass can be determined using the principle of conservation of energy. However, concrete figures cannot be calculated without specified potential energy values or initial kinetic energy.
Explanation:
To compute the speed at points B, C, and D, we will use the principle of conservation of energy, which states that the total mechanical energy in a closed system—kinetic and potential energy—is conserved. In other words, energy cannot be created or destroyed, only transformed. Here, total energy = kinetic energy + potential energy. If the total mechanical energy decreases then that decrease in energy must go into another form of energy, such as heat from friction.
As for the turning point of the mass, it will occur when the kinetic energy is at a minimum, and the potential energy is at a maximum. This will happen when the velocity of the object is zero.
Without additional data points or numerical figures for instance the actual potential energy or initial kinetic energy, we cannot exactly compute the speed at points B, C, and D or determine the turning point of the mass.
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Final answer:
This question pertains to an exercise in physics, particularly related to the conservation of mechanical energy. The speed of the mass at different points can be calculated by considering changes in potential energy and applying the formula for kinetic energy. The turning point is when the mechanical energy equals the potential energy and the kinetic energy is zero.
Explanation:
The question is asking for the speed of a 2.5 kg mass at different points as it moves along the x-axis, as well as for the turning point of the mass. Without an illustration or explicit potential energy values, it's impossible to provide exact values. However, I can explain how to approach such a problem theoretically.
Firstly, the concept you need to apply here is the conservation of mechanical energy. This principle states that if there are no non-conservative forces doing work on the system, the total mechanical energy of the system (which is the sum of the kinetic and potential energy) remains constant.
To find the speed at different points, you'd need to know the potential energy at those points. The difference in potential energy between point A and any other point on the x-axis represents the change in kinetic energy (since the sum of potential and kinetic energy must remain constant if only conservative forces are acting). The speed at each point can be found using the formula for kinetic energy: KE = 1/2 * m * v^2.
Furthermore, the turning point of the mass will occur where the mechanical energy of the mass equals the potential energy of the system. This is because at the turning point, the mass stops momentarily before turning around, meaning its speed, and therefore its kinetic energy, will be zero. Therefore, the potential energy equals the total mechanical energy at the turning points.
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Final answer:
Friction causes kinetic energy to be converted into thermal energy.
Explanation:
Friction causes kinetic energy to be converted into thermal energy, among other forms of energy. When an object is in motion and experiences friction, the work done by friction is negative, which reduces the object's kinetic energy. This converted energy is often released as heat.
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(1) increasing the wire’s length
(2) increasing the wire’s resistivity
(3) decreasing the wire’s temperature
(4) decreasing the wire’s diameter
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Explanation :
We know that the resistance of the wire is given by :
Where
is the resistivity
l is the length of the wire
A is the area of the wire.
Another factor on which the resistance of wire depends is temperature. It is given by :
So, it is clear that the resistance of the wire is directly proportional to the temperature. It we want to decrease the resistance of the piece, its temperature should be decreased.
So, the correct option is (3) " decreasing the wire’s temperature ".
Decreasing the wire’s temperature decreases the resistance of a piece of copper wire.
What is resistance?
Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.
The relation of resistance with length and thickness is given by ;
The value of resistance is directly propotional to length and inversly propotional to the area or thickness of the wire.
As the value of temperature increases, the value of resistance in the material is increasing. Length, temperature, and thickness are the factors that affect the resistance of a material.
Resistance of the wire is directly propotional to the temperature. On decreasing the temperature the resistance of the wire is also decreasing.
Hence decreasing the wire’s temperature decreases the resistance of a piece of copper wire.
To learn more about the resistance refer to the link;
Answers
Ideal Mechanical Advantage (IMA) can be found by using the formula:
IMA = ID/OD
ID = Input Distance
OD = Output Distance
In the question, we are given:
ID = 150
OD = 75
Now, solve the expression with what we have.
IMA = 150/75
IMA = 2
Therefore, the IMA is 2.
Best of Luck!