Answer:
Weight = 490 N
Explanation:
The two forces labeled and are the force of gravity and the normal force that the surface acts upon the object. These are equal and in opposite directions cancelling each other.
The other two forces and are both pointing to the right, and therefore add up to give a net force of:
50 N + 75 N = 125 N pointing to the right.
Since the net acceleration of the object is given as 2.5 , we can use it in Newton's equation for the net force on an object to solve for the object's mass:
Notice that since all units are in the SI system, the mass comes directly in kilograms (unit of mass in the SI system)
Now, to find the weight of the object, we multiply its mass times the acceleration of gravity (9.8 ):
Weight =
Again, since all quantities are expressed in SI units, the weight (a force) will come out in units of "Newtons" (N)
D A little longer than a yard (about 3 ft)
Answer:
i = 1.13\times 10^{-4}A
Explanation:
r = radius of the coil = 4 cm = 0.04 m
Area of coil is given as
A = πr²
A = (3.14) (0.04)² = 0.005024 m²
N = Number of turns = 500
R = Resistance = 600 Ω
B = magnetic field = (0.0120)t + (3 x 10⁻⁵) t⁴
Taking derivative both side relative to "t"
Induced current is given as
inserting the values at t = 5
The main difference between the drift current and diffusion current is the corresponding reaction of the semiconductor materials in the electric fields. In electric fields, when semiconductor material's movement go along with the direction of the electric field it is called drift current, but when it tends to go from high concentrated area to lower concentrated area then it is diffusion current.
The answer for this question is D