Answers
Answer:
the switching circuitry is opened the soft iron armature is replaced to tasty le macha the switching circuitry is closed explain what happens when the switch circuit is a wonder you know about the characteristics of open to close this which right take the example of an electric generator for an electric motor which rotates in half rotation and change the armature and just try it ok I am sorry
Related Questions
An electric iron is connected to the mains power supply of 220 V. When the electric iron is
adjusted at 'minimum heating' it consumes a power of 360 W but at 'maximum heating' it takes a
power of 840 W. Calculate the current and resistance in each case.
Answers
Answer:
Given: V = 220V, Pmin = 360W, Pmax = 840W
For minimum heating case:
We know that
Pmin = VI
360 = 220 X I
I = 1.63 amp
R = V/I
R = 220/1.63
R = 134.96ohms
For maximum heating case:
We know that
Pmax = VI
840 = 220 X I
I = 3.81 amp
R = V/I
R = 220/3.81
R = 57.74 ohms
A 75 kg baseball player runs at a velocity of 6 m/s and sliding 2 m what is the force of friction that acts upon him?
Answers
Answer:
1350N
Explanation:
Given data
mass= 75kg
velocity= 6m/s
distance= 2m
The expression for the applied force is given as
F= mv^2/d
Substitute
F= 75*(6)^2/ 2
F= 75*36/2
F= 2700/2
F= 1350N
Hence the force is 1350N
What is the net force on a 100kg object accelerating at 3 m/s
Answers
Answer:hence, the force needed to accelerate the 1000kg car by 3m/s2 is 3000N
Explanation:
plz mark as brainlyist plz
A student places his hand in front of a plane mirror as shown in the diagram. Which terms correctly describe the image that the mirror forms?
Answers
Anyone able to help with these questions, will give brainliest to first correct anwser
Answers
Answer:
b
Explanation:
I did this question earlier
if tje object is placed pf the focus of a concave mirror the image is formed....
Answers
Answer:
when object is kept at focus then image will form at infinity
Explanation:
virtual erect highly diminished image will be formed and it is used in the lense in galilean telescope
What causes moons to orbit planets and  planets to orbit stars
Answers
Answer:Orbits are the result of a perfect balance between the forward motion of a body in space, such as a planet or moon, and the pull of gravity on it from another body in space, such as a large planet or star. An object with a lot of mass goes forward and wants to keep going forward; however, the gravity of another body in space pulls it in.
Explanation:
{ Search “gravity in space” to learn more. Hope it helps and have a good day!}
2.5 x 103 kilogram truck with rubber tires moves through a 120 meter radius turn on a dry asphalt surface.
a. Determine the force of friction acting on the truck's tires during the turn.
b. Calculate the maximum speed with which the truck could have made this turn.
Answers
Answer:
a. The friction force acting on the truck's tires during the turn, is approximately 20,875 N
b. The maximum velocity with which the truck could make the bend is approximately 31.654 m/s
Explanation:
The given parameters of the truck are;
The mass of the truck, m = 2.5 × 10³ kg
The tire material = Rubber
The radius of the turn the through which the truck moves = 120 meters
The material and condition of the surface = Dry asphalt
a. The coefficient of friction of rubber tires on dry asphalt, μ ≈ 0.85 (researchgate (internet source))
The weight of the truck, W = m × g
Where;
m = The mass of the truck = 2.5 × 10³ kg
g = The acceleration due to gravity = 9.8 m/s²
∴ W = 2.5 × 10³ kg × 9.8 m/s² = 24,500 N
The force of friction acting on the tires, [tex]F_f[/tex] = W × μ
∴ [tex]F_f[/tex] = 24,500 N × 0.85 ≈ 20,875 N
The friction force acting on the truck's tires during the turn, [tex]F_f[/tex] ≈ 20,875 N
b. The centrifugal force the truck observes while turning through the bend, 'F', is given as follows;
F = m·v²/r
Therefore, the maximum velocity with which the truck could make the bend, 'v', is given when fiction force, '[tex]F_f[/tex]', is equal to the centripetal force, F
When [tex]F_f[/tex] = F, we have;
W × μ = m·v²/r
∴ 20,875 N = 2.5 × 10³ kg × v²/(120 m)
∴ v² = 20,875 N × (120 m)/(2.5 × 10^3 kg) = 1002 m²/s²
v = √(1002 m²/s²) ≈ 31.654 m/s
The maximum velocity with which the truck could make the bend, v ≈ 31.654 m/s
According to this question;
The mass of the truck (m) = 2.5 × 10³ kgThe radius of the turn = 120mThe coefficient of friction of rubber tires on dry asphalt, μ ≈ 0.85QUESTION 1:
Weight of the truck (W) = m × gWhere;
m = mass of the truck = 2.5 × 10³ kgg = acceleration due to gravity = 9.8 m/s²W = 2.5 × 10³ kg × 9.8 m/s² = 24,500 NThe force of friction acting on the tires, = W × μ= 24,500 N × 0.85 ≈ 20,875 NThe force of friction acting on the truck's tires during the turn = 20,875 NQUESTION 2:
Centrifugal force of the truck can be calculated as follows: F = mv²/rHowever, force of friction (Ff) is equal to centripetal force (F). That is;W × μ = m·v²/r20,875N = 2.5 × 10³ kg × v²/(120 m)v² = 20,875 × 120/2.5 × 10³ = 1002 m²/s²v = √1002 = 31.654m/sThe maximum velocity with which the truck could make the turn = 31.654 m/s.Learn more about force of friction at: https://brainly.com/question/4230804?referrer=searchResults
32) In an electrical circuit the current is measured in
A) amps using an ammeter.
B) amps using a voltmeter.
C) volts using an ammeter.
D) volts using a voltmeter.
Answers
Answer:
A) amps using an ammeter.....
pleaseeeeeeeeee helpppppppppppppppp
Answers
Newton’s first law of motion states that an object's motion remains the same unless a force acts upon it. What would be an example of this law in action?
Answers
Answer:
A driver breaks suddenly and the passengers are flung forward
13. A glass of water left in the sun becomes warm. Estella adds ice to the water to make
it cool. What energy change occurs when ice is added to the warm drink?
Answers
Answer:
second
Explanation:
second
Explain the difference between mass and weight. Also, what happens to your mass and your weight if you were to travel to the moon? Why?
PLEASE HURRY!!
Answers
7. Roughly how much did the cost of PV solar panels decrease between 2008 and 2015?
40%
80%
60%
20%
US 0
Answers
in the equation for the gravitational force between two objects which quantity must be squared?
Answers
Answer:
Distance
Explanation:
trust me
Answer:
The distance "r" must be squared
Explanation:
In the equation F=GMm/r^2, the distance "r" is squared, which represents the distance between masses M and m and G is the gravitational constant.
please please please hellpppppppp!!!!!!
Answers
Answer:
The Answer is A
Explanation:
The heat from the sun travels to Earth___
A. In high-frequency waves
B.In low frequency-waves
C.Through the movement of molecules
D.By conduction and convention
Answers
Answer:
a in high frequency waves
Explanation:
because of the thermal radiation from the sun
Answer:
The answer is B, "In low frequency-waves"
Explanation:
I got this right on my lesson! Have a great day! (-;
write down the expressions for the heat produced per second in a resistor in terms of potential difference and resistance
Answers
Answer:
[tex]H=\frac{V^2}{R}[/tex]
Explanation:
Let H be heat produced per sec
Time, t=1 sec
Resistance of resistor=R ohm
We have to write down the expression for the heat produced per second in a resistor in terms of potential difference and resistance.
We know that
Heat, [tex]H=I^2 Rt=\frac{V^2}{R}t[/tex]
Substitute the value
Then, we get
Heat,[tex]H=\frac{V^2}{R}\times 1[/tex]
[tex]H=\frac{V^2}{R}[/tex]
This is required expression for the heat produced per second in a resistor in terms of potential difference and resistance.
A man who has type B blood (genotype: BB) is married to a woman with type O blood. What blood type will their children have? blood typing
Answers
An object travels a distance of 56 meters to the right in 7 seconds. What is the object's velocity?
Answers
Explanation:
Distance travelled (d) = 56 metres
Time taken (t) = 7 seconds
velocity of the object (V)
= d / t
= 56 / 7
= 8 m/s
The velocity of the object is 8 m/s.
Hope it will help :)
Which frequencies can humans can hear but not mice
Answers
What do you need to include in a free body diagram?
Answers
Answer:
Interact with it
Explanation:
The body in a condensed form (often a dot or a box)
Straight arrows pointing in the direction in which forces act on the body are represented.
Moments are portrayed by curved arrows pointing in the direction in which they impact the body.
A coordinate system is a series of coordinates.
Is a bird sitting motionless on a perch, balanced or unbalanced?
Answers
Please help me, I'm not good in physics.
You press your physics textbook flat against a vertical wall with your hand. What is the direction of the friction force exerted by the wall on the book? (a) downward (b) upward (c) out from the wall (d) into the wall. (Serway and Jewett, 2009) What type of friction is present?
Answers
Answer:
Upward direction.
The friction is kinetic friction
What came first, a chicken or an egg
Answers
Answer:
a chicken
a chicken came first
Answer:
A Chicken
A chicken came first
when you come out of a river you feel cold. why?
Answers
Answer:
the wind
Explanation:
A 8-kg load stretches an elastic belt 0.02 m. How much will a 12-kg load stretch the belt?
Answers
Answer:
0.06
Explanation:
a 6 load will be 0.03 so double it to get the answer which is 0.06
4. A substance is cut into several piece and compared to the density of the
original sample. The density of each piece will be:-
areater
bl the same
Answers
Answer:
The density pf each piece will be the same, since density is defined as a mass per unit volume, so even when you cut an object it will not change
what happens as photons of visible light are absorbed by dye molecules?
Answers
if a circuit has 3 A of current and a 5 ohm resistor, how many volts are powering the circuit
Answers
Answer:
Given =
Current = 3 A
Resistance = 5 ohm
Solution =
By Ohm's Law
R = V/I
V = R x I
V = 5 x 3
V = 15 volts. Answer
