All categories

4 years ago

Two angles are supplementary. The first angle measures 60° what is the measurement of the second angle?

1 answer:

3 0

<span> if 2 angles are supplementary, then their sum is 180 degrees
so have x be the measure of the second angle and the measure of the first one
then,
x+y=180
x+60=180
x=180-60=120
soi think it would be c</span>

You might be interested in

How much power is required to lift a 2.0 kg mass at a speed of 2.0 m/s? a. 2.0 W c. 9.8 W b. 4.0 W d. 39 W

liberstina [14]

Answer:

d: 39W

Explanation:

Power(P) = w/t = F*d/t = F*v = m*a*v= 2*9.8*2 = 39.2W

6 0

3 years ago

Read 2 more answers

An AC adapter for a telephone-answering unit uses a transformer to reduce the line voltage of 120 V (rms) to a voltage of 9.0 V.

Illusion [34]

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,

$\frac{V_{s} }{V_{p} }$ = $\frac{N_{s} }{N_{p} }$

where $V_{s}$ is the value of the induced voltage in the secondary coil, $V_{p}$ is he voltage in the primary coil, and $N_{s}$ is the number of turns of the secondary coil, $N_{p}$ is the number of turns in the primary coil.

From the question,

$V_{s}$ = 9.0 V, $V_{p}$ = 120 V, $N_{p}$ = 240, $N_{s}$ = ?

So that,

$N_{s}$ = $\frac{V_{s}*N_{p} }{V_{p} }$

= $\frac{9 * 240}{120}$

= 18

The number of turns on the secondary output is 18.

2. $Power_{rms}$ = $I_{rms}$ × $V_{rms}$

= 0.4 × 120

= 48 W

The rms power delivered to the transformer is 48 Watts.

8 0

3 years ago

In what way did scientists Jonas Salk and Albert Sabin influence society? They generated plastics for increased manufacturing. T

faltersainse [42]

They discovered a vaccine to reduce illnesses, specifically Polio and Influenza. The work of Salk and Sabin has almost eradicated what was once a deadly disesase ( polio) . For example, there were 350,000 deaths related to poliovirus across the world in 1988 and they reduced to 22 in 2017. Also, their work has saved millions of lives from polio induced paralysis

3 0

3 years ago

Read 2 more answers

The maximum heart rate during exercise for a 40 year old is

irina1246 [14]

<span>Target HR Zone 50-85% would be </span>90-153 beats per minuet. The average maximum heart rate 100% is 180 beats per minuet.

4 0

3 years ago

What tool should a scientist use to measure an object in milligrams

Luden [163]

A scale can be used to measure miligrams,centigrams,grams and small numbers

8 0

3 years ago