Explanation:Watt=NM/s=J/s=kgm²/s³=hP
Answer :B,kgm²/s³
Answer:
2000 nickels
Explanation:
One way to solve proportionality problems, direct and inverse: the simple 3 rule.
If the relationship between the magnitudes is direct (when one magnitude increases so does the other), the simple direct rule of three must be applied.
On the contrary, if the relationship between the magnitudes is inverse (when one magnitude increases the other decreases) the rule of three simple inverse applies.
The simple 3 rule is an operation that helps us quickly solve proportionality problems, both direct and inverse.
To make a simple rule of three we need 3 data: two magnitudes proportional to each other, and a third magnitude. From these, we will find out the fourth term of proportionality.
In the simple three rule, therefore, the proportionality relationship between two known values A and B is established, and knowing a third value C, a fourth value D is calculated.
A -> B
C -> D
Calculation
1 nickel --> 5 g
X? nickel --> 10000g
X = (10000 g * 1 nickel) / 5 g
X = 2000 nickels
Answer:
1. The number of turns on the secondary output is 18
2. The root mean square power delivered to the transformer is 48 Watts.
Explanation:
A transformer is an electronic device that can be used for increasing or decreasing the value of a given voltage. It consists of primary coils and secondary coil of a definte number of turns. When voltage flows in the primary coil, it induces voltage in the secondary coil. The two types are: step-up and step down transformers.
1. For a given transformer,
= 
where 
is the value of the induced voltage in the secondary coil, 
is he voltage in the primary coil, and 
is the number of turns of the secondary coil, 
is the number of turns in the primary coil.
From the question,
= 9.0 V, = 120 V, = 240, = ?
So that,
= 
= 
= 18
The number of turns on the secondary output is 18.
2. 
= 
× 
= 0.4 × 120
= 48 W
The rms power delivered to the transformer is 48 Watts.
It moves to 56 km per hours
