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
-Dominant- [34]
2 years ago
11

GIVING BRAINLIEST PLEASE HELP!!

Physics
1 answer:
erik [133]2 years ago
4 0

Explanation:

the other 40% is used to power the 60% making it only capable of 60% efficiency

You might be interested in
Each large pizza can feed three teenage boys. How many pizzas would be needed to feed the
Blababa [14]

Answer:

19 pizzas

Explanation:

1 pizza = 3 boys

=> 56 ÷ 3 = 18.666666666666.. or about 19 pizzas

6 0
3 years ago
Read 2 more answers
A circuit has a voltage drop of 60.0 V across a 120.0 resistor that carries a current of 0.500 A. What is the power conducted by
olasank [31]

Answer:

Power, P = 30 W

Explanation:

We have,

Voltage drop of a circuit is 60 V

Resistance of the resistor is 120 ohms

Current across the circuit is 0.5 A

It is required to find the power conducted by the resistor. Power conducted by a resistor is given by :

P=VI

V and I are voltage and current

P=60\times 0.5\\\\P=30\ W

So, the power conducted by the resistor is 30 watts.

3 0
2 years ago
Pls help i dont know this
tatuchka [14]

Answer:

can you make it bigger

Explanation:

i can't see it

5 0
3 years ago
A machinist turns on the power on to a grinding wheel at time t= 0 s. The wheel accelerates uniformly from rest for 10 s and rea
Ugo [173]

Answer:

θt = 514.3 revolutions

Explanation:

(1)The wheel accelerates uniformly from rest for 10 s and reaches the operating angular speed of 58rad/s.

The uniformly accelerated circular movement  a circular path movement in which the angular acceleration is constant.

We apply the equations of circular motion uniformly accelerated

ωf = ω₀ + α*t  Formula (1)

θ = ω₀*t + (1/2)*α*t² Formula (2)

ωf² = ω₀² +2*α*θ Formula (3)

Where:

θ : angle that the body has rotated in a given time interval (rad)

α : angular acceleration (rad/s²)

t : time interval (s)

ω₀ : initial angular speed ( rad/s)

ωf : final angular speed ( rad/s)

Number of revolutions made by the wheel from t = 0 to t = 10 s

Data

ω₀ = 0

t = 10 s

ωf = 58 rad/s

We replace data in the formula (1) to calculate α

ωf = ω₀ + α*t

58 = 0 + α*(10)

α = 58 /10

α = 5.8 rad/s²

We replace data in the formula (2) to calculate θ

θ = ω₀*t + (1/2)*α*t²

θ = 0 + (1/2)*( 5.8)*(10)²

θ₁ = 290 rad

(2)The wheel is run at that angular velocity for 30 s, and then power is shut off.

The movement of the wheel is circular with constant angular speed and the formula to calculate θ is:

θ = ω*t

ω = 58 rad/s  , t= 30s

θ = (58 rad/s)*(30)

θ = (58 rad/s)*(30)

θ ₂= 1740 rad

(3)The wheel slows down uniformly at 1.4 rad/s² until the wheel stops.

ω₀ = 58 rad/s

α = -1.4 rad/s²

ωf = 0

We replace data in the formula (3) to calculate θ

(ωf)² = (ω₀)² + (2)*(α )*θ

0 = (58)² + (2)*(-1.4)*θ

(2)*(1.4)*θ = (58)²

θ = (58)² / (2.8)

θ = (58)² / (2.8)

θ₃ = 1201.42 rad

Total number of revolutions made by the wheel (θt)

θt =θ₁+θ₂+θ₃

θt  = 290 rad+ 1740 rad + 1201.42 rad

θt  = 3231.42 rad

1 revolution = 2π rad

θt = 3231.42 rad* ( 1revolution/2π rad)

θt = 514.3 revolutions

7 0
3 years ago
The bands on Jupiter are ultimately caused by...
Margaret [11]
Precision because it’s the answer
7 0
3 years ago
Other questions:
  • Which form of friction produces the least amount of force?
    10·2 answers
  • What is 1000 N in kilograms
    10·1 answer
  • Which of the following is the discharge build up of excess electrical charge? electrical charge current electricity electron sta
    11·2 answers
  • What unit is used to measure the period of a wave
    14·1 answer
  • A 100 g piece of aluminum is heated to 90°
    11·1 answer
  • A backpack has a mass of 8 kg. it is lifted and given 54.9 J of gravitational potential energy. how high is it lifted? Accelerat
    12·1 answer
  • In which environment might you expect a deposit of rock salt or sock gypsum to have formed?
    8·2 answers
  • Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00
    8·1 answer
  • When a teenager plugs his stereo into the same outlet as the television and lamp, all three devices stop working. What is the mo
    8·2 answers
  • 1.55 J of work was done on the object that moved 5 meters. How much force was applied to the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!