Winds are deflected to the right as they move into a low pressure area in the Northern Hemisphere.
<u>Explanation:</u>
Winds decide the motion of ocean currents which forms the surface waves in the Earth's atmosphere to maintain the pressure region. The motion of ocean currents is based on Coriolis force which states the direction of motion of an object in a rotating system.
In the case of Earth, the Coriolis force has an effect on the ocean currents which are deflected from maximum to minimum pressure region in a curved path. So the winds formed by the ocean currents will generally get deflected at the right as they move into a low pressure area at the Northern Hemisphere from the high pressure region.
Answer:
Velocity= 19.05 m/s
Kinetic energy= 3.08 J
Explanation:
The corn possess potential energy. Feom law of conservation of energy, all the potential eneegy will be converted to kinetic energy, with negligible friction.
Potential energy, PE= kinetic energy, KE
Potential energy is given by mgh while kinetic energy is given by
Equating
Making v the subject of the formula then
Substituting 9.81 m/s2 for g and 18.5 m for h then the velocity will be
To get the kinetic eneegy, since PE=KE AND KE is
Substituting v with 19.05 and m with 0.017 kg we have
This can also be achieved by mgh since PE=KE hence 0.17*9.81*18.5=3.085245 J and the results are slightly different due to small energy losses and rounding off of values.
Answer:
Explanation:
We shall write the initial and final velocity after impulse in vector form
initial velocity
V₁ = 19 cos 40 i - 19 sin 40 j
V₁ = 14.55 i - 12.21 j
Similarly velocity after the impulse
V₂ = 50 cos 30 i + 50 sin30 j
= 43.30 i + 25 j
Now V₂-V₁ , change in velocity
= 43.30 i + 25 j - 14.55 i + 12.21 j
= 28.75 i +37.21 j
change in momentum
maas x change in velocity
.2 (28.75 i +37.21 j )
5.75 i + 7.442 j
Impulse = change in momentum
= 5.75 i + 7.442 j
magnitude
= √5.75² +7.442²
= 9.4 kg m/s
TanФ = 7.442 / 5.75
Ф = 52 °
b )
total time = 28 x 10⁻³ s
Force x time = change in momentum
force = change in momentum / time
= 9.4 / 28 x 10⁻³
= 335.7 N.
Direction of force will be the same as before ie 52 degree from the horizontal .