Answer:
65 meters to the right.
Explanation:
the shark moves to the right 30 meters and then to the left 15 making his new placement 15. he then moved to the right 50 meters making his new placement 65 meters to the right.
The gravitational potential energy of an object Is always measured relative to the height of the object. It has the equation equal to mass PE = mgh where PE is the potential energy, m is the mass of the object, H is the height of the object and g is the acceleration due to gravity.
The gravitational potential of an object is always measured relative to reference level/another point
Energy is the ability to do work. Energy can change from one energy to another
Gravitational potential energy is the energy that an object has because of its position
The potential energy can be formulated:
Ep = m. g. h
E = potential energy of an object, joule
m = object mass, kg
g = gravity acceleration, m / s2
h = height of an object, m
The higher the object from the surface of the earth and the greater the mass, the greater the potential energy of the object. Earth's gravity also affects the potential energy of objects
Potential energy itself includes mechanical energy
Em = Ek + Ep
Em = mechanical energy
Ek = kinetic energy
Ep = potential energy
The amount of kinetic energy and potential energy of objects is always constant
Determine how potential and kinetic energy changes at each position of the pendulum
Determine the mechanical energy
the potential of an object when it falls from a height
the gravitational potential energy between moon and earth
Keywords: the potential energy, kinetic energy, mechanical energy
b) False
Answer:
b)False
Explanation:
This is the false statement .The two forces in each pair could not have different physical origins.
The two pair of forces have same origin.It can not be possible that one is electric force and other one is gravity force or friction force.
We know that magnitude of electric force is much smaller than the friction force .So they can not be in pair form.
Answer is b) False
"When The motional emf generated between the ends of the wire is e = 17745.1 V".
When Motional EMFs in the Earth’s weak magnetic occupation are not ordinarily very large, we would notice voltage along metal rods, Than such as a screwdriver, during ordinary motions. For illustration, a simple computation of the motional emf of a 1 m rod moving at 3. 0 m/s perpendiculars to the Earth’s field gives emf is = Bℓv
Then Length, l is = 4.32 x 10^4 m
Then speed, v is = 7.07 x 10^3 m/s
Now the magnetic field, B is = 5.81 x 10^-5 T
Now, The formula for the motion emf is given by
e is = B x v x l
e is = 5.81 x 10^-5 x 7.07 x 10^3 x 4.32 x 10^4
Therefore, e = 17745.1 V
Find more information about Motional emf generated here:
Answer:
Explanation:
Length, l = 4.32 x 10^4 m
speed, v = 7.07 x 10^3 m/s
magnetic field, B = 5.81 x 10^-5 T
The formula for the motion emf is given by
e = B x v x l
e = 5.81 x 10^-5 x 7.07 x 10^3 x 4.32 x 10^4
e = 17745.1 V