1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Veronika [31]
3 years ago
8

 circuit in Mike’s home is almost at maximum current. If it is a 120 V circuit with about 1/3 of an amp available to safely use,

which bulb would be the maximum wattage Mike could use?
Physics
2 answers:
NikAS [45]3 years ago
3 0

Answer:

40 W

Explanation:

The maximum wattage (power) that Mike can use is given by:

P=VI

where

V is the voltage

I is the maximum current

In this problem, we have:

V=120 V is the voltage

I=\frac{1}{3}A=0.33 A is the maximum current available

Therefore, the maximum power that could be used is

P=VI=(120 V)(0.33 A)=40 W

Free_Kalibri [48]3 years ago
3 0

Answer:

40 W

Explanation:

You might be interested in
A model air rocket with a mass of 50.g is free to travel along a horizontal track. It begins from rest. After 2.0s, the rocket h
katen-ka-za [31]

Answer:

v_r=5.89\ m.s^{-1}

Explanation:

Given:

  • mass of rocket, m_r=50\ g
  • time of observation, t=2\ s
  • mass lost by the rocket by expulsion of air, m_a=10\%\ of m_r=5\ g
  • velocity of air, v_a=53\ m.s^{-1}

<u>Now the momentum of air will be equal to the momentum of rocket in the opposite direction: </u>(Using the theory of elastic collision)

m_a.v_a=(m_r-m_a)\times v_r

5\times 53=(50-5)\times v_r

v_r=5.89\ m.s^{-1}

7 0
3 years ago
A 1000 kg car moving at 108 km/h jams on its brakes and comes to a stop. How much work was done by friction?
Nostrana [21]

Answer:

The work done by friction was -4.5\times10^{5}\ J

Explanation:

Given that,

Mass of car = 1000 kg

Initial speed of car =108 km/h =30 m/s

When the car is stop by brakes.

Then, final speed of car will be zero.

We need to calculate the work done by friction

Using formula of work done

W=\Delta KE

W=K.E_{f}-K.E_{i}

W=\dfrac{1}{2}mv_{f}^2-\dfrac{1}{2}mv_{f}^2

Put the value of m and v

W=0-\dfrac{1}{2}\times1000\times(30)^2

W=-450000&#10;\ J

W=-4.5\times10^{5}\ J

Hence, The work done by friction was -4.5\times10^{5}\ J

3 0
3 years ago
A typical mattress has a network of springs that provide support. If you sit on a mattress, the springs compress. A heavier pers
GenaCL600 [577]

Answer:

Explanation:

Spring has a tendency to store energy in them and deform its shape when force is applied on it. Once the applied force is removed it regains its original shape and size.

It is in helical shape and is used in mattress to give structure and support. Spring have elastic nature and follows spring forces, F = k * x

where is the applied force, k is the spring constant and x is the amount of extension.

When a heavier person sits on a mattress, more weight is applied on springs and they form coils, as weight is removed they regains its shape again.

4 0
3 years ago
The diagram below shows a food web.
Mekhanik [1.2K]
i think it’s B. sorry if i’m wrong
8 0
3 years ago
Read 2 more answers
Como te llamas?<br><br><br><br><br><br><br><br> (nom
lions [1.4K]

Answer: como mi llamo yo?

Explanation: in rlf Maria

4 0
3 years ago
Read 2 more answers
Other questions:
  • Friction in a car's engine produces some wasted _____ energy.
    14·2 answers
  • The mechanical advantage of a wheel and axle is the radius of the wheel divided by the radius of the axle. On wheel and axle A,
    11·2 answers
  • In terms of speed and direction in what ways can an object accelerate
    11·2 answers
  • During wich two time intervals does the particle undergo equal displacement
    14·1 answer
  • If you shine red light at a green plant and green light at a green plant, knowing that a plant must absorb light to grow, which
    6·1 answer
  • Substances can undergo physical changes or chemical changes. what is the difference between these two kinds of changes
    11·2 answers
  • The Henry's law constant for CO2 is 3.6 ✕ 10−2 M/atm at 25°C. What pressure (in atm) of carbon dioxide is needed to maintain a C
    13·1 answer
  • Two adjoining plane mirrors are separated by an angle of 100°. Light is incident on the first mirror at an angle of 70°. The lig
    14·2 answers
  • I need HELP ASAP please...
    9·2 answers
  • An experiment was performed to determine how the amount of coffee grounds could affect the taste of coffee. The same kind of cof
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!