Answer:
.conserves kinetic energy and momentum
.does not coalesce
.causes much lesser deformation as compared to inelastic
.the two bodies involved; after collision move with separate final velocities.
Explanation:
eg. throwing a ball at a wall
<em>collision</em><em> </em><em>between</em><em> </em><em>a</em><em> </em><em>punch</em><em> </em><em>and</em><em> </em><em>your</em><em> </em><em>nose</em><em>,</em><em>haha</em>
<em>I</em><em> </em><em>guess</em><em> </em><em>that</em><em> </em><em>will</em><em> </em><em>cause</em><em> </em><em>a lot</em><em> </em><em>deformation</em><em>.</em><em>.</em>
<em>.</em>
The equation is garbled and the question is missing.
I found this equation for the same statement:
S = - 2.7t ^2 + 30t + 6.5
And one question is: after how many seconds is the ball 12 feet above the moon's surface?
Given that S is the height of the ball, you just have to replace S with 12 and solve for t.
=> 12 = - 2.7 t^2 + 30t + 6.5
=> 2.7t^2 - 30t - 6.5 + 12 = 0
=> 2.7t^2 - 30t + 5.5 = 0
Now you can use the quadratic equation fo find t:
t = { 30 +/- √ [30^2) - 4(2.7)(5.5)] } / (2*2.7)
=> t = 0.186s and t = 10.925 s
Answer: after 0.186 s the ball is at 12 feet over the surface, and again 10.925 s
Answer : (A) A charged object is brought near a neutral object without touching it.
Explanation:
Bodies can be charged by the method of conduction. By conduction the body acquires the same charge as on the charging body.
Charging the body can be understood by the following example of charging a paper cylinder by conduction. Make a paper cylinder by rolling a strip of paper on a pencil and then gently pulling out the pencil. Suspend the paper cylinder by a string tied to its center, now touch the paper cylinder with a glass rod rubbed with silk so it has a positive charge. Remove the class rod and the again bring it near to the paper cylinder.
The paper cylinder is repelled by the positively charged rod. And when you bring a negatively rubbed rod, next to the cylinder it will be attracted towards the rod. This means that the paper cylinder has acquired a positive charge as on the glass rod due to conduction.
Answer: Comparing infrared and ultraviolet, ''we can say that infrared has longer wavelength and lower photon energy''
