Answer:
my name is Deepika Pandey anion I am 9 years old my father name is Dinesh Pandey my name is and my sister name is sister name is a
Explanation:
<em>because</em><em> </em><em>magnet</em><em> </em><em>attract</em><em> </em><em>opposite</em><em> </em><em>sides</em><em>.</em><em> </em><em>like</em><em> </em><em>north</em><em> </em><em>and</em><em> </em><em>south</em><em>.</em>
Answer: 2.5N
Explanation:
Given the following :
Mass of block (m) = 2kg
Coefficient of static friction (μs) = 0.4
Horizontal force applied to the block = 2.5N
The frictional force (Ff) between the block and the floor is :
First calculate the maximum static frictional force:
Frictional force = Coefficient of static friction(μs) × normal reaction(R)
Normal reaction(R) = mass × acceleration due to gravity (10m/s^2)
R = 2 × 10 = 20
Fmax = μs × R
Fmax = 0.4 x 20 = 8N
Here, since the applied force (2.5N) is less than maximum frictional force(8N).
The force of friction between the block and the floor will be equal to the applied force of 2.5N due its ability to adjust itself in other to ensure equilibrium.
Answer:
kinectic energy-in physics kinetic energy of an object is the energy that it possesses due to its motion
- it is defined as the work needed to accelerate a body of a given mass from rest to its started velocity.having
- gained this energy during its acceleration
- The body maintains this kinetic energy unless its speed changes.
potential energy-in physics potential energy is the energy held by an object because of its position relative to other objects,its electric charge,or other factors
- in the case of a bow and arrow ,when archer does work on the bow drawing the string back
- some if the chemical energy of the archer's body is transformed into elastic potential energy in the bent limb of bow
The phenomenon which is responsible for this effect is called diffraction.
Diffraction is the ability of a wave to propagate when it meets an obstacle or a slit. When the wave encounters the obstacle or the slit, it 'bends' around it and it continues propagate beyond it. A classical example of this phenomenon is when a sound wave propagates through a wall where there is a small aperture (as in the example of this problem)