Answer:
The correct answer is:
(A) to the left
(B) at speed -0.8725 m/s
Explanation:
The given values are:
Plate 1:
Mass,
m₁ = 201 g
Velocity,
v₁ = +1.79 m/s
Plate 2:
Mass,
m₁ = 335 g
Velocity,
v₁ = -2.47 m/s
According to the conservation of momentum, we get
⇒ 
then,
⇒ 
On substituting the values, we get
⇒ 
⇒ 
⇒ 
⇒
(to the left)
Explanation:
Spring is stretched by force f to distance
"X"
now here by force balance we can say
f = kx
k = !
now here we will we say that energy stored in the spring will convert into kinetic energy
kx² = mv²
(x² = mv²
now solving above equation we will have
PART 2)
now for half of the extension again we can use energy conservation
ka²-k(x/2)² = 1 {mv²
¾fx=mv²
now the speed is given as
3 fr 4m V=
Gradpoint? The answer is B
No difference.
A planet, asteroid, space station, rock, empty fuel tank, asteroid,
lost space probe, TV satellite, orbiting telescope, moon, or comet,
if they're traveling in the same orbit around the same central body,
all have the same speed at the same point in the orbit.
The distance between the two fringes is 0.0225 mm.
<u>Explanation:</u>
As per Young's double slit experiment, the distance between the fringes can be observed for the bright constructive interference fringes. So if we know the distance between the separation of slits. the distance of the mirror placed away from the slit, then the distance between two fringes can be observed using the below formula.

Here y is the distance between the fringes on screen, D is the distance of the screen from the slits and d is the distance between the slits. Also m is the order of the interference which is generally considered as 1.
So, in the present case, D = 30.8 cm = 0.308 m, d = 6.53×10⁻³ m, wavelength = 478 nm and m = 1.
So, 

So, the distance between the two fringes is 0.0225 mm.