<span>3) Neither precise or accurate.
This is because of the deviation between the measurements, they vary and are not within a good range. And they are not close to the accepted value. In order to be precise the measurements have to be relatively close to each other, and to be accurate they have to be close to the accepted value.</span>
Answer:
The question is wrong Since if you apply Force on 0.0m²It would mean That the pressure exerted=F/A=F/0
An since we can't divide a number by 0, the question is wrong
Options:
(a) Total kinetic energy of the system remains constant.
(b) Total momentum of the system is conserved.
(c) Both A and B are true.
(d) Neither A nor B are true.
Answer:
(b) Total momentum of the system is conserved.
Explanation:
An inelastic collision is a type of collision in which momentum is conserved and kinetic energy is not conserved. That is, there is loss of kinetic energy.
In an inelastic collision:
Total momentum before collision = Total momentum after collision
An example of inelastic collision is seen in the ballistic pendulum, The ballistic pendulum is a device in which a projectile such as a bullet is fired into a suspended heavy wooden stationary block.
Answer:
X2 - X2'=3.24×10⁻⁴m
Explanation:
Given Data
λ1=730nm=
λ2=640nm
d=0.61 mm
D=1.1 m
Distance of the second bright fringe from the central fringe is given by
Xn = = D x n x2 λ / d
X2 = 2 D λ1 / d
X2' = 2 D λ2 / d
Separation between the second bright fringes of the two wavelengths ( the separation between the second order fringes ) is ,
X2 - X2' = 2 D ( λ1 - λ2 ) / d
X2 - X2'= {2 x 1. 1 (730×10^-9 - 640×10^-9) }/ 0.61 x 10 ^-3
X2 - X2'=3.24×10⁻⁴m
Answer:
should be d because friction allows things to go faster or slower
