Answer:
The storage method is originally designed to last years. The exact amount of time comes down to what type of waste it is.
Answer is 1500 m/s
Wave speed = Frequency x wavelength
500.0 x 3.00 = 1500 m/s
As per question the coin is falling under gravity as there is no other force that has bee mentioned here.
so the equation of motion for a freely falling body is given as-
here the initial velocity is zero as the coin was at rest.
hence we have
so now we have to calculate the displacement of the coin at various instants.
at t=0.2212 s,we have
=0.2398m[upto four decimal digit
again when t=0.737 s
s=
=2.662m [upto three decimal digit] [ans]
Answer:
a1 = 3.28 km
a2 = 4.67 km
a3 = -2.20 km
D = 6.08 km
Explanation:
The position vector from the radar station to the ship will be
S = (17.3 sin 136i + 17.3 cos 136j) km
S = (12i + -12.44j) km
Now, the position vector from the station to the plane will be
S' = (19.2 sin 153i + 19.2 cos 153j + 2.2k) km
S' = (8.72i + -17.11j + 2.2k) km
Finally, in order to fly the ship, the displacement needed is S - S'
Displacement, D = (3.28i + 4.67j - 2.2k) km.
Therefore, the values are
a1 = 3.28 km
a2 = 4.67 km
a3 = -2.20 km
The distance between the plane and the ship is given by
D' = √[(3.28² + 4.67² + (-2.2)²]
D' = √(10.7584 + 21.8089 + 4.4)
D' = √36.9673
D' = 6.08 km