Answer:
In a third class lever, the effort is located between the load and the fulcrum. ... If the fulcrum is closer to the effort, then the load will move a greater distance. A pair of tweezers, swinging a baseball bat or using your arm to lift something are examples of third class levers.
Explanation:
Answer: q = 2.781e-9C = 2.781nC
E=200C
Explanation:
E = Qd/(2πEor^3)
Where
E=Electric field intensity
Q=Charge
d=distance between the dipole=0.008m
Eo=permitivitty
400 N/C = Q(0.80e-2 m)/(2πε*(10e-2 m)^3)
Q= (400* 2* 3.142 * 8.85 x 10-12 * 0.1^3)/0.008
q = 2.781e-9C = 2.781nC
b)
Though the dipole are two separate charges. And since the point is on the x-axis, the electric field strengths are equivalent. The magnitude of the vector sum is:
E = kq*2sin θ/r^2
= 2(8.99e9 N*m^2/C^2)(2.781e-9 C)*sin(arctan(.4/10))/(10e-2 m)^2
= 2(8.99e9) * (2.781e-9) * sin(2.290)/(10e-2 m)^2
=200 C
Answer:
a reference point allows you to determine the motion of an object :)
example: when your in a car and u look out the window and your moving fast than the car next to you. It seems that way because the car next to you is actually moving much slower.
<u>Answer</u>:
A force generated by an underwater earthquake applied to the waves of the ocean during a period changes the momentum of the wave, this is referred to as tsunami.
<u>Explanation</u>:
Most of the tsunamis are caused due to earthquakes and are the most destructive. When an earthquake of magnitude more than 7.5 in the Richter scale hits the ocean, there is a huge stir on the river and the balance of the water above it deteriorates. Waves are produced when water tries to get back its equilibrium.
This wave is formed due to the rise in water at the epicenter of the crisis and moves around the epicenter in the form of concentric circles. Remember that not all the earthquakes cause tsunamis, but in the same situation when the earthquake causes a movement in the seawater in the vertical direction. This movement arises on the ocean floor due to earthquakes, fractures or the sliding of plates.
