Average speed = 0.5 m/s
time = 45 seconds
The distance covered
From Speed= distance/time
The force applied to a spring equals the product of the spring constant and the displacement.
From Hooke's law, the force required to extend or compress a spring by a distance is proportional to the distance. This means extension is proportional to force.
Mathematically it is stated as;
F= -k*x where k is the spring constant and x is the displacement of the spring after adjustment.
Hooke's law is an example of elasticity property of a material which is the ability of the object to return to a normal shape after experiencing a distortion also called "restoring force"
Earth is nearest the Sun in July and farthest away in July.
Correct Answer: B.
Earth is nearest the Sun in January and farthest away in July. Explanation: According to Kepler's Second Law, a planet travels fastest when it is nearest its sun. This means that Earth is actually closest to the Sun in January, when it is winter in the northern hemisphere!
A 60W bulb , consumes electrical energy of 60 J per second but it does not give out all the energy in the form of light . Most of the energy consumed by it is wasted in the form of heat . Only a fraction of energy is converted into light energy .
Hence, it is wrong to say that bulb supplies 60 J of light energy each second .
Let us consider the masses of elephant and rubber ball was denoted as-
Let the initial velocity of the elephant and rubber ball is denoted as -
Let the final velocities of the elephant and rubber ball is denoted as-
As per the question-
We are asked to calculate the velocities of rubber ball and charged elephant.
From law of conservation of momentum and kinetic energy, we know that-
First we have to calculate the velocity of elephant.
[ Here the velocity of rubber ball is taken as negative as it is opposite to the direction of motion of elephant.]
Now we have to calculate velocity of rubber ball.
Here we see that velocity of rubber ball is increased.
The kinetic energy of the rubber ball is given as -
As the velocity of the ball is increased,hence, its kinetic energy is increased.
An object with a volume of 9 cm³ is completely submerged in the water.
To Find :
How much water is displaced by the object.
According to Archimedes' principle, the amount of volume displaced of fluid when an object is fully and partially submerged into that is equal to the volume of the object below the surface of liquid.
Now, it is given that object is fully submerged into water.
Therefore, volume of water displaced by the object is 9 cm³.
An atom is the part of an element. A particular element is composed of only one type of atom. Atoms are further composed of subatomic particles called electrons, protons and neutrons. Elements can combine with each other to form molecules via chemical reaction.
Answer: what happed to you ?
I am right
From the information in the question, the statement that is true about flood mitigation efforts is that; "It is cheaper to fund flood mitigation projects than to pay for repairs after flooding has occurred."
The term "flood mitigation refers to a deliberate attempt to stop flood incidences in an areas especially when it is an area that is prone to flood incidents.
The statement that is true about flood mitigation efforts is that; "It is cheaper to fund flood mitigation projects than to pay for repairs after flooding has occurred."
Learn more about flood mitigation: brainly.com/question/26054041