Answer:
B. Strength
Explanation:
The OPT Model, or Optimum Performance Training Model, is a "fitness training system created by the NASM. The OPT Model is contructed with scientific evidence and principles that progresses an individual through five training phases: stabilization endurance, strength endurance, hypertrophy, maximal strength and power".
On the stabilization level we have the phase 1 called stabilization endurance.
For the level strength part we have 3 phases . Phase 2: Strength endurance , Phase 3: Hypertrophy, Phase 4: Maximal strength. And we can consider the case "A seated cable row" on this the level strength since we need to have some abilities to do this but not enough to stay on the power level since this one is the advancd level.
For the power level we have the last phase called power in order to mantain and conduct high training level programs.
Answer:
V = x/t
where:
x = distance [m]
t = time [s]
V = velocity [m/s]
Explanation:
Speed is defined as the distance travelled by a body in a given time interval. The velocity or speed is a vector, that is, it has magnitude and direction.
By virtue of its vector character, the direction of the displacement and the module, which is called speed, must be considered to define the velocity.
<u>Average speed</u>
The average speed is defined as the change of position over a given time interval. It is calculated by dividing the displacement vector (Δx) between the time interval (Δt) used.
<u>Instant speed</u>
Instantaneous velocity is a vector tangent to the trajectory, corresponding to the derivative of the vector position relative to time.
It allows to know the speed of a mobile that moves on a trajectory when the interval of time is infinitely small, being then the space traveled also very small, representing a point of the trajectory. Instant velocity is always tangent to the trajectory.
Balancing.
When the same force is applied from both sides,the forces cancel out each other.
Assumption :
- The process is adiabatic
- Heat from electric kettle is constant
- Efficiency of electric kettle is 100%
Q = m • c • ∆T
P • t = m • c • ∆T
2400t= (4.5 kg)(4200 J/kg°C)(100°C - 28°C)
2400t = 1360800
t = 567 s
t = 9.45 min
Answer:
A)
Explanation:
A) the particles do not reflect the electric and magnetic forces, they must have the same magnitude and opposite direction.
the magnetic force is perpendicular to the speed that is on the x axis and to the magnetic field that stakes the z axis, so the force goes in the direction of the positive y axis.
With this force it must be opposite to the electric force, this implies that the electric field must go in the direction of the negative y axis.
Let's use Newton's equation of equilibrium
= 0
FM = Fe
.q v B = q E
E = v B
E = 2 0.1
E = 0.2 N / C
.b) when the particular one reaches the camera with a magnetic field, the magnetic force perpendicular to the speed causes them to start a uniform circular movement since the magnitude of the speed does not change.
With the magnetic force it is on the axis and the circle described by the particles is on this axis
.c) The particles are in a circular motion the point where their motion is reversed they move in the negative direction when they are at the lowest or highest part of the path or I know that they have traveled
Let's use kinematics
.v = va - a t
.v = -vow
-vow = vow - at
.a = 2 vow / t
.a = 2 2 / 0.1 10-3
.a = 40 103 m / s2
Now let's use Newton's second law
FM = m a
Q v B = m a
.m = q v B / a
.m = 1.6 10-19 2.0 0.1 / 40 103
.m = 8 10-25 kg
