To work a ball of dough with the fingertips or heels of the hands by repeating press, fold, and turn motions is to

Answer:

the density makes something float or sink below water its the "water weight "

Explanation:

The change in gravitational potential energy of the pendulum bob-earth system is equal to mg(L - Lcos33°).

The change in gravitational potential energy of the pendulum bob-earth system can be determined using the equation

ΔPE = mgh,

where m is the mass of the pendulum bob, g is the acceleration due to gravity, and h is the change in height. The change in height can be determined using the equation

h = L - Lcosθ,

where L is the length of the pendulum and θ is the angle of the pendulum.

Substituting the values given in the question into the equations, we get:

h = L - Lcos33°

ΔPE = mgh

=> mg(L - Lcos33°)

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Answer:

80:20

20/20=1

80/20=4

he doges 4 in 1 second

Explanation:

Hope this helps! =D

Answer:

Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less.

Explanation:

Answer:

a

Explanation:

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Answer:

21 m

Explanation:

Since the displacement from the door is 2 m West, we have our vector as -2i. The vector representing 14.0 m South is -14.0j. The vector representing 25.0 m East is 25.0i. The vector representing 11.0 m North is 11.0j. And, the vector representing 2.0 m West is -2.0i.

So, to get our position vector at the other location, we add all the vectors together.

So, r = -2i + (-14.0j) + 25.0i + 11.0j - 2i

= -4i + 25.0i - 14.0j + 11.0j

= 21.0i -3j m

Now, if we assume the position vector for the door is at the origin, we have r₀ = 0i + 0j m

So, our displacement from the door is r - r₀ = 21.0i - 3.0j - (0i + 0j) =  21.0i - 3.0j

So, the magnitude of the resultant displacement |r - r₀| = √(21.0² + 3.0²)

= 3.0√(7.0² + 1)

= 3.0√(49 + 1)

= 3.0√50

= 3.0 × 7.0711

= 21.2

≅ 21 m to the nearest integer

The movement of a body part around a central point or axis is known as rotation.

Rotation refers to the circular movement of a body part around its axis or a fixed point. It involves the turning or twisting motion of a body segment without changing its position in space.

Flexion (a) is the movement that decreases the angle between two body parts, typically bending or decreasing the joint angle. The extension (b) is the opposite movement, increasing the angle between two body parts, typically straightening or increasing the joint angle. Abduction (d) refers to the movement of a body part away from the midline of the body.

During rotation, the body part or segment moves around an imaginary line called the axis. This axis can be within the body itself or located externally. For example, when we rotate our head from side to side, the axis of rotation is an imaginary line passing through the neck.

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Dust is important to the condensation sequence because it acts as a surface for the formation of ice and other solid particles in the cold outer regions of the protoplanetary disk. The dust grains provide a surface where water vapor molecules and other volatiles can condense and freeze, forming tiny ice particles known as "frost."

These ice particles then collide and stick together to form larger and larger objects, eventually leading to the formation of planetesimals and eventually planets. Without dust, the condensation process would be greatly slowed down or even halted, making it difficult for planets to form in the protoplanetary disk.

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The amount of heat the cup absorb is 1003200 J.

Given,

Mass of coffee cup = 4.00 × 100 g or 4 kg

Room temperature = 20°C

Hot water temperature = 80°C

We have to find the amount of heat the cup absorbed.

Now, by using the specific heat formula, we have

Q = mCΔT

Where m is the mass of the substance, c is the specific heat, ΔT is the change in temperature, and Q is the amount of heat received or lost.

Putting the values, we get

Q = 4 × 4180 × (80°- 20°)

Q = 1003200 J/kg K

Hence, the amount of heat absorbed by the cup is 1003200 J/kg K.

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The vertical acceleration of the ball at its highest altitude is 0 m/s.

It is possible for an item to have both zero acceleration and non-zero velocity because acceleration is the change in velocity. Since there is no change in velocity while an object is moving at a constant speed, it experiences no acceleration.

The bullet reaches its highest point when its vertical velocity is zero. The vertical portion of the velocity vector will now point downward. The projectile's horizontal range, which is determined by the object's beginning velocity, is referred to as the projectile's range.

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Explanation:

gas vibrate and moves freely at high speeds, liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place

hope it helps you

Option B, C, and E are correct. First principle of motion options that address the issue include Before an item may move, it must be subjected to a net force. The inertia rule is another term for the first principle of Newton's theory of motion.

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Complete question: Inertia is an object's natural tendency to remain in constant motion or at rest. An object moving through outer space, for example, will continue moving in one direction and at a constant speed due to its inertia, if no other forces act on it. Why do planets constantly change the direction in which they move?

A. Most planets do not have any inertia, so their motion constantly changes.

B. The force of gravity acts on planets and changes the direction of their motion.

C. Each planet's inertia is constantly changing from one moment to the next.

D. There are no forces acting on the planets as they move in orbits around the Sun.

Answer:

1. Chlorine = 7 valence electrons.

2. Sulphur = 6 valence electrons.

3. Magnesium = 2 valence electrons.

Explanation:

In Chemistry, valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Valence electrons are used to determine whether an atom or group of elements found in a periodic table can bond with others. Thus, this property is typically used to determine the chemical properties of elements.

1. Chlorine = it is an element found in group (7) of the periodic table known as halogens and as such it has 7 electrons in its outermost shell. Therefore, Chlorine has seven (7) valence electrons.

Sulphur = this element is found in group (6) of the periodic table and as such it has 6 electrons in its outermost shell. Therefore, Sulphur has six (6) valence electrons.

Magnesium = this element is found in group (2) of the periodic table and as such it has 2 electrons in its outermost shell. Therefore, Magnesium has two (2) valence electrons.

i) Infiltration capacity: Infiltration capacity refers to the maximum rate at which water can penetrate or infiltrate into the soil surface.

ii) Infiltration rate: Infiltration rate represents the actual rate at which water is infiltrating into the soil. It is the speed or velocity at which water is penetrating the soil surface

iii) Infiltration b-index: The infiltration b-index is a parameter used to estimate the soil moisture retention characteristics and infiltration rate of a soil.

b) To calculate the total runoff, we need to determine the excess rainfall for each time interval and sum them up.

Excess rainfall = Rainfall rate - Phi-index

For the four intervals:

Excess rainfall1 = 12.5 cm/h - 7.5 cm/h = 5 cm/h

Excess rainfall2 = 17.5 cm/h - 7.5 cm/h = 10 cm/h

Excess rainfall3 = 22.5 cm/h - 7.5 cm/h = 15 cm/h

Excess rainfall4 = 7.5 cm/h - 7.5 cm/h = 0 cm/h

Now, we can calculate the total runoff by summing up the excess rainfall for all intervals:

= 5 cm/h + 10 cm/h + 15 cm/h + 0 cm/h

= 30 cm/h

c) The runoff coefficient can be calculated by dividing the observed annual runoff by the corresponding annual rainfall.

Converting the units to the same length scale:

Annual runoff = 150 Mm³ = 150,000,000,000 m³

Annual rainfall = 750 mm = 0.75 m

Runoff coefficient = 150,000,000,000 m³ / 0.75 m

= 200,000,000,000

Infiltration refers to the process by which water enters and permeates into the soil or porous surfaces. It occurs when precipitation, such as rain or snow, falls onto the ground and is absorbed into the soil or surface materials. Infiltration plays a crucial role in the water cycle and is a key process in hydrology.

The rate of infiltration is influenced by various factors, including soil type, vegetation cover, slope gradient, and the initial moisture content of the soil. Soils with high permeability, such as sandy soils, typically have a higher infiltration rate compared to soils with low permeability, such as clay soils. Infiltration is important for replenishing groundwater reserves, as it allows water to percolate downward and recharge aquifers. It also helps to reduce surface runoff, erosion, and flooding by absorbing and storing water within the soil profile.

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m = the object's mass; g = the local gravity (for example, the standard planet acceleration or f 0 = 9.80665ms-2) Weight of the Object. Enter the object's mass in this field.

What does Earth's gravity on average weigh?

gravitation on Earth. According to Newton's universal laws of gravitation, the gravitational force on Earth is the result (vector sum) of 2 factors: (a) the gravitational pull and (b) the gravitational forces.

Describe zero gravity.

all videos related to this post A description of gravity with an emphasis on zero gravity In mechanics, gravity—also known as gravitation—is the constant force of attraction that pulls all things together. By far, it is the

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Answer:

10.6 s

Explanation:

Given that a girl is running the 200 m dash. She starts by acceleration at 8m/s^2 for 7s. Then continues at this speed until the end of the race. How long did it take for her to complete the race?

Solution.

If she accelerated for 7s, the velocity at which she accelerated will be:

Acceleration = velocity/time

8 = V/7

Make V the subject of the formula by cross multiplying.

V = 8 × 7

V = 56 m/s

She maintains the speed through out the journey.

Speed = distance/time

Make time the subject of formula

Time = distance/speed

Time = 200 / 56

Time = 3.57s

Therefore, she will complete the race by 7 + 3.6 = 10.6 s

A.1.2°C

The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes are therefore subject to the principle of conservation of energy.

To find internal energy, you have to add the heat added in the system and work done in the system because the work done is not lost but rather it is added in the system.

Step 1

a)let

to add the energy it must have the same measure unit, so let's convert calories into Julies

remember that

b) now, replace in the formula

now, we have the change of internal energy

Step 2

now, let's find the change in temperature

Use the calorimetry formula.

where m is the mass, Q = heat energy, c = specific heat capacity, and ∆T = change in temperature

a)

let

now,

so, the answer is

A.1.2°C

Managers do the crucial duty of controlling when they create precise measuring and monitoring methods to assess how well the firm has achieved its goals.

Software that assists system administrators in monitoring their infrastructure is known as a monitoring system. These tools keep an eye on the hardware, software, and traffic of the system and raise the alarm in the event of errors or disturbances. There are several monitoring systems available, ranging from commercial software to freeware.

The monitoring system broadcasts a signal and logs information about the signal, including whether it was received, how long it took the host to receive it, whether any signal data was lost, and other details.

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A. the angular acceleration of the wheel is  (2225 N * 0.050 m) / ((1/2) * 14.5 kg * ((0.380 m)^2 + (0.280 m)^2))
B. The Tangential acceleration  is 0.380 m * α
C. It take to reach an angular velocity of 80.0 rad/s is 80.0 rad/s / a

Torque = Force * Radius

The torque produced by the drive chain is equal to the moment of inertia of the wheel multiplied by the angular acceleration:

Torque = I * α

The moment of inertia of the wheel can be calculated using the formula for the moment of inertia of an annular ring:

I = (1/2) * m * (R_2^2 + R_1^2)

Substituting the given values:

I = (1/2) * 14.5 kg * ((0.380 m)^2 + (0.280 m)^2)

Now we can solve for the angular acceleration:

Torque = I * α

2225 N * 0.050 m = (1/2) * 14.5 kg * ((0.380 m)^2 + (0.280 m)^2) * α

Solving for α:

α = (2225 N * 0.050 m) / ((1/2) * 14.5 kg * ((0.380 m)^2 + (0.280 m)^2))

(b) The tangential acceleration of a point on the outer edge of the tire can be found using the formula:

Tangential acceleration = Radius * Angular acceleration

Substituting the given values:

Tangential acceleration = 0.380 m * α

(c) To find the time it takes to reach an angular velocity of 80.0 rad/s, we can use the formula:

Angular velocity = Initial angular velocity + (Angular acceleration * Time)

Since the initial angular velocity is 0 (starting from rest), we have:

80.0 rad/s = 0 + (a * Time)

Solving for Time: Time = 80.0 rad/s / a

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Answer:

\( \boxed{R = 20\Omega} \)

Given:

Voltage (V)= 6.0 V

Current (I) = 0.3 A

Explanation:

Ohm's law states that voltage is directly proportional to current.

\(V \propto I \: or \: V = IR\)

R is proportionality constant known as Resistance.

So,

\( = > R = \frac{V }{ I} \\ \\ = > R = \frac{6.0}{0.3} \\ \\ = > R = 20\Omega \)

If the voltage is 6.0V and the current 0.3A, then the resistance is 20 ohms.

Ohm's law is a fundamental law of physics that describes the relationship between electric current, voltage, and resistance in a circuit. It states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.

Mathematically, Ohm's law is expressed as:

I = V/R

where I is the current flowing through the circuit, V is the voltage applied across the circuit, and R is the resistance of the circuit.

This law holds true for a wide range of electrical conductors, including metals, semiconductors, and electrolytes. The law also states that the resistance of a conductor remains constant as long as the temperature, pressure, and other physical factors remain constant.

Ohm's law is an essential principle in the study of electrical circuits and is used to analyze and design circuits for various applications. It is also used in the design of electrical components such as resistors, capacitors, and inductors.

Here in the Question,

To find the resistance, we can use Ohm's Law which states that resistance (R) is equal to the voltage (V) divided by the current (I):

R = V / I

Plugging in the given values, we get:

R = 6.0V / 0.3A

R = 20 ohms

Therefore, the resistance is 20 ohms.

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The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

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Answer:

subtract this number from this number

Number 1 and A are correct, but B is not correct

B ---> Distance = 1/2*(Velocity)*(Time)

Distance = 1/2(5s)*(-12m/s)

Distance = 5(s)*(-6m/s)

Distance = -30m

A lever is acted on at two different points by two different forces effort and load. The correct answer is: D.

A lever is a simple machine that consists of a bar that rotates around a fixed point called a fulcrum. The effort is the force that is applied to the lever, and the load is the force that is resisted by the lever.

The effort and load are applied at two different points on the lever, and the fulcrum is located between these two points.

The effort and load create a torque on the lever, which is the product of the force and the distance from the fulcrum.

The torque produced by the effort must be equal to the torque produced by the load in order for the lever to be in equilibrium.

The effort and load can be applied in different directions, and the fulcrum can be located at different points on the lever.

This allows levers to be used for a variety of tasks, such as lifting heavy objects, prying open cans, and turning screws.

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Answer:

5 seconds

Explanation:

the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5

Work done by a force is equal to the scalar product of the force applied and displacement. If d displacement happens on applying a force F, then work done, W by the force is

W = F. d

given:

mass, m = 25 kg

height, d = 1.50 m

work has to be done against the weight of the book, F = mg

work done W = F. d

W = mgd

W = (25) ×(9.8)×(1.50)

W = 367.5 J

This work is stored as the potential energy of the book.

Therefore, the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5J

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Edison means with the claim that "there is no similar institution in existence" was that he had created the first ever laboratory dedicated to research and invention.

After the successful installation of his first power plants in the starting of 1880s, Edison lived up to his reputation as the "Inventor of the Age." For many years Edison had no single, central laboratory. He researched at his electrical manufacturing shops in Harrison, New Jersey and New York.

When his wife Mary died in 1884 he withdrew somewhat from electric light work. In 1887 he had decided to build a new facility near his house in West Orange, New Jersey, several times bigger than the Menlo Park laboratory had been. The new laboratory equipped with everything Edison had learned about the process of invention.

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