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NISA [10]
3 years ago
12

In a(n) _____ circuit there are two or more loops through which the current flows, and each resistor has its own connection to t

he voltage source.
a. series
b. parallel
c. open

/////////////////////////////
A television that requires an average of 0.40 amps of current is connected to a 120 volt current. How much power is the television using?
Physics
2 answers:
kramer3 years ago
8 0

Question 1:

Series Circuit - the current only has one path to take.

Parallel Circuit - the current has two or more paths to take.

Open Circuit - a circuit that's incomplete.

The best option is b. parallel since its a circuit that has two or more loops through which the current flows, and each resistor has its own connection to the voltage source.

Question 2:

We can find the amount of power the television is using by using the formula [ p = cv ] where p = power, c = current, and v = voltage.

p = (0.4)(120)

p = 48

So, the television is using 48 watts of power.

Best of Luck!

sleet_krkn [62]3 years ago
5 0

Question #1:

That's an description of an <em>parallel</em> circuit. <em>(b)</em>

Question #2:  

Power = (current) x (voltage)

Power = (0.4 A) x (120 v)

Power = <em>48 watts</em>

You might be interested in
A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
ra1l [238]

Answer:

a) t = 4.16 s

b) x = 141.51 m

Explanation:

Given

v = 21.5 m/s

x0 = 52.0 m

a = 6.0 m/s²

a) Motorcycle

x = v0*t + (a*t²/2)

x = 21.5t + (6*t²/2)

x = 21.5t + 3t²   <em>(I)</em>

Car

x = x0 + v0*t

x = 52 + 21.5t  <em>(II)</em>

<em />

then we can apply <em>I = II</em>

21.5t + 3t² = 52 + 21.5t

⇒ 3t² = 52

⇒ t = 4.16 s

b) We can use <em>I</em> or <em>II</em>, then

x = 52 + 21.5*(4.16)

⇒ x = 141.51 m

8 0
3 years ago
A 1500 kg car traveling east at 40 km/hr turns a corner and speeds up to a velocity of 50 km/hr due north. What is the change in
pantera1 [17]

Answer:

96046  Ns.

Explanation:

We shall represent velocity in vector form considering east direction as + ve x axis and north as + y direction.

40 km/h in the east

V₁ = 40 i

V₂ = 50j

momentum p₁ = mV₁

= 1500 X 40 i

= 60000 i

Momentum p₂ = mV₂

= 1500 X 50j

= 75000 j

Change in momentum

p₂ - p₁

75000j - 60000i

Magnitude of change

= \sqrt{(750000)^2 +(60000)^2

= 96046  Ns.

5 0
3 years ago
A hockey player skates with an average speed of 8.25 m/s. The distance the player will travel in 5.60 s is __________ .
OverLord2011 [107]
<h2>Greetings!</h2>

To find this value, you need to remember the speed formula:

3 = 6 / 2

Speed = distance ÷ time

Rearrange to make distance the subject:

Distance = speed * time

Simply plug these values into this:

5.6 * 8.25 = 46.2

<h3>So the player will travel 46.2 metres!</h3>
<h2>Hope this helps!</h2>
7 0
2 years ago
During a free fall Swati was accelerating at -9.8m/s2. After 120 seconds how far did she travel? Use the formula =1/2 *
marta [7]
Distance fallen = 1/2 ( V initial + V final ) *t
We know
a = -9.8 m/s2
t=120s

To find distance fallen, we need to find V final
Use the equation
V final = V initial + a*t
Substitute known values
V final = 0 + (-9.8)(120)
V final = -1176 m/s

Then plug known values to distance fallen equation
Distance fallen = 1/2 ( 0 + 1176 )(120)
= 1/2(1776)(120)
=106,560 m

This way plugging into distance equation is actually the long way. A faster way is to plug the values into
Distance fallen = V initial * t + 1/2(a*t)
We won't need to find V final using another equation.

But anyways, good luck!



4 0
3 years ago
0.75 km expressed in centimeters
disa [49]
75000 lol enjoy..............using up 20 characters 
7 0
2 years ago
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