coil converts the excess current drawn by a motor into heat, which is used to determine whether the motor is in danger

Answer:

Since 2 pi = 360 deg and pi equals 180 deg, 30 deg = pi / 6.

S = theta * R = pi / 6 * 3 cm = 1.57 cm

Answer:

The right answer is "15.072 m/s".

Explanation:

The given values are:

Radius,

= 12 m

Time,

= 5 m/s

As we know,

⇒ \(s=\frac{d}{t}\)

On substituting the given values in the above formula, we get

⇒    \(=\frac{2 \pi(12)}{5}\)

⇒    \(=\frac{2\times 3.14\times 12}{5}\)

⇒    \(=\frac{75.36}{5}\)

⇒    \(=15.072 \ m/s\)

Answer:

Via, vibration.

Source generate vibration, and air molecules vibrate, so kinetics and potential energy transfer

Answer:

You’re really dumb...

Explanation:

The force on the negatively charged object is approximately -1.44 N. The force between two charged objects can be calculated using Coulomb's law.

Coulomb's law states that the force (F) between two charges (q1 and q2) is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Mathematically, Coulomb's law is represented as:

F = k * (|q1| * |q2|) / r^2,

where F is the force, k is the electrostatic constant (9 × 10^9 N m^2/C^2), |q1| and |q2| are the magnitudes of the charges, and r is the distance between the charges.

In this case, the pith ball possesses a charge of +10 μC (10 × 10^-6 C), and the metal plate possesses a charge of -64 μC (-64 × 10^-6 C). The distance between them is 0.02 m.

Plugging in the values into Coulomb's law:

F = (9 × 10^9 N m^2/C^2) * ((10 × 10^-6 C) * (-64 × 10^-6 C)) / (0.02 m)^2.

Simplifying the calculation:

F = (9 × 10^9 N m^2/C^2) * (-640 × 10^-12 C^2) / (0.0004 m^2).

F = -2.56 × 10^-3 N.

Therefore, the force on the negatively charged object is approximately -1.44 N (since the negative sign indicates the direction of the force).

The force on the negatively charged object is approximately -1.44 N. This is calculated using Coulomb's law, which considers the magnitude of the charges and the distance between them. The negative sign indicates an attractive force between the two charges.

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When measuring a condominium you should calculate GLA using interior measurements.

GLA stands for Gross Living Area

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Answer:

All objects on Earth, regardless of their mass, accelerate due to gravity at the same rate - that is, 9.8 m/sec2. The weight of an object can be calculated using the formula for force - F = m * a - where F equals the weight of the object and now the acceleration (a) is the acceleration of gravity (g).

In the given question, we can infer from the table that the average velocity for the car upto one decimal place is 7.3 m/s.

Velocity is defined as the ratio of Displacement of a body to the time it has take for the displacement. We can find the average velocity but adding up all the velocities and then divide it by number of occurrences. Using the data, after adding up all the average velocities, we get the value as 87.497 m/s. As the number of velocities are 12, we divide the total velocity by 12 and fing the mean velocity. The mean or average velocity is : 87.497 / 12 = 7.291416. Upto one decimal place, we get the value as 7.3 m/s.

Hence the average or mean velocity from the given data is 7.3 m/s

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According to the given statement,

The sum of p and Q is 70N , the value of the forces p and Q is

25N

"Distance or quantity" is how magnitude is simply defined. It shows how an object moves when it is in motion, whether that movement is absolute, relative, or of a certain size. It serves as a way to describe something's size or scope. Magnitude is a general term used in physics to describe size or distance.

In order to compare the speeds of a car and a bicycle, the magnitude can be used as an explanation. Additionally, it can be used to describe the length a particular object has travelled or the magnitude of an object's amount.

According to the given value,

The magnitude of Q= the horizontal component of the resultant force.

θ= 90°-30°= 60°

|Q|= 50cos 60°= 25N.

Hence, the sum of p and Q is 70N , the value of the forces p and Q is 25N.

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Answer:

48.26 m

Explanation:

time to goes up (till stop for a while in the air - maximum height)

vt = vo + a t

0 = 15 + g . t

0 = 15 + (-9.8) . t

9.8t = 15

t = 1.531 s

so the time left to goes down is

4.0 - 1.531 = 2.469 s

height from the top of building can find it by using

vo =√(2gh)

15 = √(2)(9.8).h

15² = 19.6h

h = 225/19.6 = 11.48 m

so the distance of maximum height to the ground is

t = √(2H/g)

2.469 = √(2H/9.8)

2.469² = 2H/9.8

6.096 = 2H/9.8

2H = 6.096 x 9.8 = 59.74 m

so the vertical distance of the building (or the building height's is)

H - h = 59.74 - 11.48 = 48.26 m

Answer:

Option D. 9.47 V

Explanation:

We'll begin by calculating the equivalent resistance of the circuit. This can be obtained as follow:

Resistor 1 (R₁) = 20 Ω

Resistor 2 (R₂) = 30 Ω

Resistor 3 (R₃) = 45 Ω

Equivalent Resistance (R) =?

R = R₁ + R₂ + R₃ (series connections)

R = 20 + 30 + 45

R = 95 Ω

Next, we shall determine the current in the circuit. This can be obtained as follow:

Voltage (V) = 45 V

Equivalent Resistance (R) = 95 Ω

Current (I) =?

V = IR

45 = I × 95

Divide both side by 95

I = 45 / 95

I = 0.4737 A

Finally, we shall determine, the voltage across R₁. This can be obtained as follow:

NOTE: Since the resistors are in series connection, the same current will pass through them.

Current (I) = 0.4737 A

Resistor 1 (R₁) = 20 Ω

Voltage 1 (V₁) =?

V₁ = IR₁

V₁ = 0.4737 × 20

V₁ = 9.47 V

Therefore, the voltage across R₁ is 9.47 V.

Answer:

9.47

Explanation:

Just Took the Test

Answer:

Distance, S = 13m

Explanation:

Given the following data;

Initial velocity, u = 4m/s

Final velocity, v = 9m/s

Time, t = 2 seconds

To find the distance, S;

First of all, we would determine the acceleration of the shark.

Acceleration = (v - u)/t

Acceleration = (9 - 4)/2

Acceleration = 5/2

Acceleration = 2.5m/s²

Now, to find the distance we would use the second equation of motion

S = ut + ½at²

Substituting into the equation, we have

S = 4(2) + ½*2.5*2²

S = 8 + 1.25*4

S = 8 + 5

Distance, S = 13m

they begin to move quickly and can break away from other molecules

Answer:

When solid changes atoms/molecules begin to speed up and move around. Compared to when they are in the solid phase, where they barely move and are slow and are compacted.

The mass of a cylindrical rod is 6.29 kg.

The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition.

Density of lead = 10⁴ kg/m³.

Volume of a cylindrical rod of length 0.5m and radius 0.020m = πr²l

= (22/7)(0.020)²(0.5) m³

=6.29×10⁻⁴ m³.

Hence, mass of the cylindrical rod = volume × density

= 6.29×10⁻⁴ m³ ×  10⁴ kg/m³.

= 6.29 kg.

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Answer:

infrared radiation

Explanation:

Answer:

other things remain constant 

Explanation:

Answer:

B) Other things remain constant.

Explanation:

For edmentum users.

The hailstone will hit the earth in 4.04 seconds.

we move 9.8 meters per second faster thanks to gravity. we   start to fall after one second at 9.8 m/s. we start falling at 19.6 m/s after two seconds, and so forth.

From the query, the following information may be deduced:

Height (H) = 120 m

Gravitational acceleration (g)=9.8 m/s2.

Time (t)=?

It is possible to determine the hailstone's impact time as:

h=1/2 gt²

120= 1/2 x 9.8 x t²

120x2/9.8=t²

t²=24.48

t=4.94 s

therefore, the calculated time taken is 4.94 s.

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If alcohol or drugs are used in small quantities, and with little or no damaging consequences, it's not usually considered drug abuse.

The correct option is A.

A person who has completed his 18 years of age, wants to drive any vehicle whether car or bike, he must have a license called the driver's license.

Drug abuse is the aggressiveness developed in person after drinking alcohol.

In countries, when a person takes in alcohol with little or no damaging consequences, he is not to be considered as drug abuse.

The given statement is True.

Thus, the correct option is A.

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This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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The percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

For finding the percentage of adhesions that are higher than 0.40, need to calculate the area under the normal distribution curve to the right of 0.40. First, need to standardize the value of 0.40 using the Z-score formula:

Z = (X - μ) / σ

Where X is the value (0.40), μ is the mean (0.37), and σ is the standard deviation (0.04).

Z = (0.40 - 0.37) / 0.04 = 0.03 / 0.04 = 0.75

Next, look up the Z-score of 0.75 in the standard normal distribution table for finding the corresponding cumulative probability. The Z-table tells that the cumulative probability to the left of 0.75 is approximately 0.7734.

Since want the percentage to the right of 0.40, subtract the cumulative probability from 1:

1 - 0.7734 = 0.2266

Therefore, the percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

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Answer:

\(density = \frac{mass}{volume} \\ \\ density = \frac{14.4}{2} \\ \\ { \boxed{ \boxed{density = 7.2 \: g {cm}^{ - 3} }}}\)

Answer: 1200 000 J = 1.2 MJ

Explanation: Ek = 0.5 mv² = 0.5 · 1500 kg· (40 m/s)²

Answer:

They are standing 3 feet away from each other

Explanation:

If Nathan Is standing 2 feet away from the mirror. Then Hiva is standing 7 feet away from the mirror is she is standing 5 feet further than him. They are standing 3 feet away from each other.

Answer:

the answer is D

Explanation:

Answer:

The answer is D

Explanation:

yes

Answer:

4.8 A

Explanation:

Voltage = current x resistance

(V = IR)

12 = I (0.5 +2)

I = 4.8 A

2000 mm is equivalent to 2 m. This can be derived from the fact that 1 m = 1000 mm. Thus, 2000 mm would be equal to 2 m since it is twice the length of 1000 mm. This conversion is important in various fields such as construction, engineering, and science where precision is necessary.

It is crucial to be able to convert between different units of measurement in order to make accurate calculations and measurements.The millimeter is a unit of length that is often used to measure small distances such as the thickness of a sheet of paper or the size of a small component. It is part of the metric system, which is a system of units used across the world that is based on multiples of 10.

This system makes it easy to convert between different units since it is based on a consistent set of rules.For example, to convert 2000 mm to meters, we can simply divide by 1000 since there are 1000 millimeters in a meter. This gives us 2 meters, which is the equivalent length in meters of 2000 millimeters.

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Answer:

A-first law

B-third law

C-second law

Explanation:

It must be either speeding up, or slowing down, or turning. There are no other possibilities.

Answer:

99.48

Explanation:

99.48

Answer:

The more mass an object has, the greater its gravitational field and gravity force will be.

Explanation:

gravity force = mass × gravitational field strength (g)

The more mass, the more g-force.

a) Given: The tension in the string, T = 2.50 N The separation between the balls, l = 2mLet the charge on the ball A be q, and that on the ball B be 2q. So, we have to find the value of q. So, the force of electrostatic repulsion between A and B can be calculated by Coulomb's law as:

\($$F = \frac{1}{4\pi \epsilon _0}\frac{q(2q)}{l^2} = \frac{q^2}{2\pi \ epsilon _0l^2}$$\)  The net force on the system can be obtained by taking the vector sum of the electrostatic force and the tension in the string. Since the balls are floating at rest, the net force on them must be zero.

So, we can write:$$T + F = 0$$$$\ Right arrow \frac{q^2}{2\pi \epsilon _0l^2} = T$$$$\Right arrow q = \sqrt{\frac{2\pi \epsilon _0l^2 T}{}}$$Substituting the given values, we get:$$q = \sqrt{\frac{2\times 3.14 \times 8.85\times 10^{-12}\times 2^2\times 2.5}{}}$$$$\Right arrow

q = 1.18 \times 10^{-8} C$$   Therefore, the magnitude of q is 1.18 × 10⁻⁸ C.b) The two balls A and B carry like charges, so there will be an electrostatic force of repulsion between them.

As time passes, the charge on the balls does not change, so the tension and the separation between the balls also remain constant. Therefore, the system will remain in the same state of equilibrium and nothing else will happen to the system as time passes.

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