Answer:
(a) %a, 10 A, 0.833 A
(b) 12 ohm
(c) $22.8
Explanation:
Power of toaster, P1 = 600 W
Power of iron, P2 = 1200 W
Power of bulb, P3 = 100 W
V = 120 V
As they are in household circuit, so they are connected in parallel, so the voltage is same for all.
(a) Use the formula P = V x i
Current in toaster, i1 = P1 / V = 600 / 120 = 5 A
Current in iron, i2 = P2 / V = 1200 / 120 = 10 A
Current in bulb, i3 = P3 / V = 100 / 120 = 0.833 A
(b) Resistance of heating element of iron is R2.
V = i2 x R2
120 = 10 x R2
R2 = 12 ohm
(c) Total energy consumed in 24 hours for 5 days
= (600 + 1200 + 100) x 24 x 5 = 228000 Wh = 228 KWh
Cost of 1 KWh = $0.1
Cost of 228 KWh = 0.1 x 228 = $22.8
_______________________________
Answer:
(a). Toaster = 5A
Iron = 10A
Bulb = 0.833A
(b). R2 = 12Ω
(c). $ 22.8
_______________________________
Explanation:
Given,
Power of Toaster, P1 = 600W
Power of Iron, P2 = 1200W
Power of Bulb, P3 = 100W
Potential difference = 120V
They all are connected in parallel combination because they all are household circuits so that the voltage is same for all appliances in the circuit.
★Solution of(a)
By using the formula of powerwe can find out the current.
Here, power is directly proportional to the potential difference and electric current flowing through the circuit.
Here,electriccurrent is inversely proportional to the potential differenceandelectric currentisdirectly proportional topower.
Current in Toaster, I1 = P1/V = 600/120 = 5A
Current in Iron, I2 = P1/V = 1200/120 = 10A
Current in Bulb, I3 = P1/V = 100/120 = 0.833A
★Solutionof(b)
Resistance of Heating coil of Iron
By using theformula of Ohm's Law we can find out the resistance of heatingcoil of iron.
Here, the potential difference is directly proportional to the current carrying wire and potential difference is directly proportional to the resistance off the wire present in the Iron.
Here, resistance is directly proportional to the potential difference and resistance is inversely proportional to the electric current.
R=V/I
=> R = 120/10
.°. R = 12Ω
★Solutionof(c)
Total consumption of Energy in 24 hours for 5 days = (600W + 1200W + 100W) × 24 hours × 5 days
= 228000Wh
= 228kWh
When the cost of 1kWh = $ 0.1
So,
The cost of 228 kWh = $ 0.1 × 228 = $ 22.8
_______________________________
The distance for both Parts A and B are given in the question.
A balloon drifts 140m toward the west in 45s.
The wind suddenly changes and the balloon flies 90m toward the east in the next 25s.
To find the total distance, we can just add.
140 + 90 = 230m
Best of Luck!
Answer:
Explanation:
The force experienced by the moving electron in the magnetic field is expressed as F = qvBsinθ where;
q is the charge on the electron
v is the velocity of the electron
B is the magnetic field strength
θ is the angle that the velocity of the electron make with the magnetic field.
Given parameters
F = 1.40*10⁻¹⁶ N
q = 1.6*10⁻¹⁹C
v = 3.94*10³m/s
B = 1.23T
Required
Angle that the velocity of the electron make with the magnetic field
Substituting the given parameters into the formula:
1.40*10⁻¹⁶ = 1.6*10⁻¹⁹ * 3.94*10³ * 1.23 * sinθ
1.40*10⁻¹⁶ = 7.75392 * 10⁻¹⁹⁺³sinθ
1.40*10⁻¹⁶ = 7.75392 * 10⁻¹⁶sinθ
sinθ = 1.40*10⁻¹⁶/7.75392 * 10⁻¹⁶
sinθ = 1.40/7.75392
sinθ = 0.1806
θ = sin⁻¹0.1806
θ₁ = 10.4⁰
Since sinθ is positive in the 1st and 2nd quadrant, θ₂ = 180-θ₁
θ₂ = 180-10.4
θ₂ = 169.6⁰
Hence, the angle that the velocity of the electron make with the magnetic field are 10.4⁰ and 169.6⁰
(1) The acceleration of the car will be
(2) The time taken
(3) The time is taken by the car to slow down from 20m/s to 10m/s
(1) The acceleration of the car will be calculated as
Here
u= 14
(2) The time is taken for the same acceleration to 20
u=20
(3) The time is taken to slow down from 20m/s to 10m/s with the same acceleration
From same formula
v=10
u=20
Thus
(1) The acceleration of the car will be
(2) The time taken
(3) The time is taken by the car to slow down from 20m/s to 10m/s
To know more about the Equation of the motion follow
(a)
The car's acceleration is given by
where
v = 0 is the final velocity
u = 14 m/s is the initial velocity
t = 4 s is the time elapsed
Substituting,
where the negative sign means the car is slowing down.
(b) 5.7 s
We can use again the same equation
where in this case we have
is again the acceleration of the car
v = 0 is the final velocity
u = 20 m/s is the initial velocity
Re-arranging the equation and solving for t, we find the time the car takes to come to a stop:
(c)
As before, we can use the equation
Here we have
is again the acceleration of the car
v = 10 is the final velocity
u = 20 m/s is the initial velocity
Re-arranging the equation and solving for t, we find
It is shared electrons.
The following information should be considered:
learn more: brainly.com/question/2514933?referrer=searchResults
Answer:
try electrons i hope this helps!!
Explanation:
Answer:
The period of the pendulum is
Explanation:
The diagram illustrating this setup is shown on the first uploaded image
From the question we are told that
The length of the rod is
The diameter of the ring is
The distance of the hole from the one end
From the diagram we see that point A is the center of the brass ring
So the length from the axis of rotation is mathematically evaluated as
Now the period of the pendulum is mathematically represented as
Answer:
High and low tides are result of combined effect of gravitational pull of the sun and the moon. When the two align in a straight line, the range of tides is maximum. This happens on new moon and full moon day.
On the other hand, when the sun and the moon align at right angles, the effect of gravity is minimum and the range of the tides is minimum.