A transformer is used to increase or decrease a voltage.  BUT ... it has to be an AC voltage, or the transformer doesn't work.
 
        
                    
             
        
        
        
Answer:
P = 7196 [kPa]
Explanation:
We can solve this problem using the expression that defines the pressure depending on the height of water column.
P = dens*g*h
where:
dens = 1028 [kg/m^3]
g = 10 [m/s^2]
h = 700 [m]
Therefore:
P = 1028*10*700
P = 7196000 [Pa]
P = 7196 [kPa]
 
        
             
        
        
        
Answer:

t'=1.1897 μs
Explanation:
First we will calculate the velocity of micrometeorite relative to spaceship.
Formula:

where:
v is the velocity of spaceship relative to certain frame of reference =  -0.82c (Negative sign is due to antiparallel track).
u is the velocity of micrometeorite relative to same frame of reference as spaceship = .82c (Negative sign is due to antiparallel track)
u' is the relative velocity of micrometeorite with respect to spaceship.
In order to find u' , we can rewrite the above expression as:


u'=0.9806c
Time for micrometeorite to pass spaceship can be calculated as:

 (c = 3*10^8 m/s)
     (c = 3*10^8 m/s)


t'=1.1897 μs
 
        
             
        
        
        
Answer:
Unit of precision for force is the Newton.
Explanation:
It is the official unit used to describe force in science and mostly abbreviated with the symbol N.
 
        
             
        
        
        
Answer:
    t_total = 23.757 s
Explanation:
This is a kinematics exercise.
Let's start by calculating the distance and has to reach the limit speed of 
v = 18.8 m / s
          v = v₀ + a t₁
the elevator starts with zero speed
          v = a t₁
          t₁ = v / a
          t₁ = 18.8 / 2.40
          t₁ = 7.833 s
in this time he runs
          y₁ = v₀ t₁ + ½ a t₁²
          y₁ = ½ a t₁²
          y₁ = ½ 2.40 7.833²
          y₁ = 73.627 m
This is the time and distance traveled until reaching the maximum speed, which will be constant throughout the rest of the trip.
            x_total = x₁ + x₂
            x₂ = x_total - x₁
            x₂ = 373 - 73,627
            x₂ = 299.373 m
this distance travels at constant speed,
            v = x₂ / t₂
            t₂ = x₂ / v
            t₂ = 299.373 / 18.8
            t₂ = 15.92 s
therefore the total travel time is
            t_total = t₁ + t₂
            t_total = 7.833 + 15.92
            t_total = 23.757 s