What is part of the first stage in the process of technological design?

reporting a solution
building a prototype
researching information
designing a solution

Answer:

it is a push or pull

Explanation:

short and best description

Answer:

A force is a push or pull upon an object resulting from the object's interaction with another object.

or

 push or pull.

Explanation:

Answer:

Sine they are at right angles to each other, therefore “theta”= 90°. Using our cosine rule to look for our resultant force.

Explanation:

A^2=B^2+C^2 - 2BC COSthetha

A=resultant force; B=3N; C=4N; COS90=0.

A^2=3^2+4^2 - 2×3×4×0

A^2=9+16–0

A^2=25

A=√25

A=5N.

ANS:-

The characteristics of fluid are as given below:

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compressibility, pressure, buoyancy, viscosity, and surface tension are characteristic of a fluids.

Fluid is a material which can flow. gas and liquid is called as fluid. If a fluid is not compressible and it has zero viscosity it is considered an ideal fluid.

Fluids have no definite shape.

it has many characteristics,

Compressibility, different fluids have different compressibility, only gas is compressible, liquids are incompressible.  

Pressure - all flued have pressure associated with them, when a gas is enclosed in a box, gas molecule have kinetic energy which collides on the wall of the box and pressurize it. Flowing water have pressure.

buoyancy - when a small object is falling in the flued a force called buoyance force is acted upon it which opposes falling motion.  

Viscosity - it is relative motion between two adjacent layer, each liquid has different viscosity.    

surface tension - it is the force per unit tangential line on the region which acts as stretched membrane.

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Answer:

yes

Explanation:

tissues and organs are made of cells therefore cells have to be smaller and simpler

Answer:

A. 1-10

Explanation:

not sure..

Answer:

C. Light rays are bent by the water in the glass

Explanation:

That's the way science works and I learned about this before in class.

The atoms of these noble gases have stable arrangements of electrons, the elements are all inert.

The term inert gases has to do with those gases that are not reactive. The atoms of these elements have a complete octet of electrons hence they are unreactive.

As such,  the atoms of these noble gases have stable arrangements of electrons, the elements are all inert.

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The rate of radiation into surrounding space of the box shaped wooden stove at a temperature of 205 degrees Celsius is 8,453.82 J/s.

The rate of radiation of the wooden stove is calculated as follows;

P =  εAσT4

Where:  

A = 2(Lw + Lh + Wh)

A = 2(0.75 x 1.2  +   0.75 x 0.4   + 1.2 x 0.4)

A = 3.36 m²

P = 0.85 x 3.36 x (5.67 x 10⁻⁸) x (478)⁴

P = 8,453.82 J/s

Thus, the rate of radiation into surrounding space of the box shaped wooden stove at a temperature of 205 degrees Celsius is 8,453.82 J/s.

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Answer:

Least count of a screw gauge is the minimum length that we can measure using a screw gauge. We can measure the least count of the screw gauge by measuring the pitch of the screw gauge and the number of divisions on the circular scale.

Answer:

The minimum amount of value or number which can be measured by a screw gauge is called its least count or L.C

Explanation:

Answer:

735 J

Explanation:

Formula

Gravitational Potential Energy (GPE) = mgh

Given

Solving

From the change in the kinetic energy of the particle, the force that acted on the particle from an inertial frame is proved as F(dr) = dK.

The kinetic energy of the particle is given as;

K.E = ¹/₂mv²

dK/dv = mv

m = dK/vdv

The force on the particle is given by Newton's second law of motion;

F = ma

a = dv/dt

F = m(dv/dt)

F = (dK/vdv) (dv/dt)

F = dK/vdt

F(vdt) = dK

v = dr/dt

F (dr/dt) x (dt) = dK

F(dr) = dK, proved

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Answer:

The angular momentum depends on both the angular velocity and the mass distribution of the object. You can change this angular momentum by exerting a torque (a twisting force)—but with no external torque, the angular momentum is conserved. Now getting back to the ice skater.

Answer:

b

Explanation:

Source is parallel to the propagation.

The value of the resistance of the series RLC circuit attached to a 120 V/60 Hz power line is 35.57 ohms.

The power factor of RLC series circuit is determined from the ratio of resistance to the total impedance of the circuit.

Pf = R/Z

0.83 = R/Z

where;

Z = V/I

0.83 = R/(V / I)

0.83 = (RI) / (V)

RI = 0.83V

R = 0.83V/I

R = (0.83 x 120) / (2.8)

R = 35.57 ohms

Thus, the value of the resistance of the series RLC circuit attached to a 120 V/60 Hz power line is 35.57 ohms.

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The core of the Sun is the interior or center part of this star.

The sun is one of the stars of the solar system that gives life to the planet earth. All the other planets revolves round it.

The features of the sun include the following:

The sun is also made up of several parts which include:

The innermost or central part of the sun is the core that is made up of the highest amount of hydrogen atoms.

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Answer: 4.4m/s

Explanation:

Answer:

input force is force applied to overcome the load and the output force is the force overcome by the effort

Explanation:

effort is equal to input and load is equal to the output

Answer:

1kg is the answer i think

At the given erro in angle, the error in the measurement of sin 90 degrees would be 0.001.

The percentage error of any measurement is obtained from the ratio of the error to the actual measurement.

The error of sin 90 degrees is calculated as follows;

sin 90 = 1

error in measurement = sin(90 - 0.5)

error in measurement = sin(89.5) = 0.999

Error in sin 90 degrees = 1 - 0.999

Error in sin 90 degrees = 0.001

Thus, at the given erro in angle, the error in sin 90 degrees would be 0.001.

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The resistance of the electric space heater dissipating the given amount of power is 10.9Ω.

Ohm's law states that "the voltage across the cross-section of a conductor is directly proportional to the current passing through it.

It is expressed as;

V = I × R

Where V is voltage, I is current and R is resistance.

Also, electrical power is the product of current and voltage.

P = I × V meaning I = P/V

Hence,

V = (P/V) × R

R = V² / P

Given the data in the question;

To determine the resistance of the heater, we substitute our given values into the derived expression above.

R = V² / P

R = (120V)² / 1320W

R = 14400V² / 1320W

R = 10.9Ω

Therefore, the resistance of the electric space heater dissipating the given amount of power is 10.9Ω.

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The slope of the velocity - time graph from the given data point is 0.21 m/s².

Acceleration is the rate of change of velocity with time. The slope of velocity - time graph is accelertion.

a = Δv/Δt

where;

Δv = v₂ - v₁

Δv = 2.35 - 0.4

Δv = 1.95 m/s

Δt = t₂ - t₁

Δt = 10 - 0.5

Δt = 9.5 s

a = Δv/Δt

a = 1.95/9.5

a = 0.21 m/s²

Thus, the slope of the velocity - time graph from the given data point is 0.21 m/s².

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With the use of formula, the slope of the graph is 0.21 m/[tex]s^{2}[/tex]

The slope M of a graph is the gradient of the graph.

The formula for calculating slope M is;

M = [tex]\frac{V_{2} - V_{1} }{t_{2} - t_{1} }[/tex]

From a graph it is given that

The slope obtained using the above information can be calculated by using the formula above

M = (2.35 - 0.4) / ( 10 - 0.5 )

M = 1.95 / 9.5

M = 0.205 m/[tex]s^{2}[/tex]

Therefore, the slope of the graph is 0.21 m/[tex]s^{2}[/tex] approximately

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We can minimize the danger to the passengers of the colliding cars by slowing down the car, by use airbag and other safety measures.

The abrupt, violent coming together in direct contact of two bodies is known as the collision.a falling object and a floor are examples of collision.

When the distance between two ships decreases while the bearings remain constant, a collision occurs.

If you can't discover an exit route and are almost certain to collide with anybody, you must slow down considerably. Any decrease in speed will lessen the harm to you, your vehicle, and your riders.

According to the law of conservation of momentum, the momentum of the body before the collision is always equal to the momentum of the body after the collision.

According to the law of conservation of momentum;

Momentum before collision =Momentum after collision

By the law of conservation of momentum, we understand the momentum get conserved. So we can find the collision velocity and reduces the chances of collision.

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The turn signal belongs to the control subsystem of an automobile.

Turn signals serves as the control that help motorists to react and plan for road user making a turn in front of them.

This is part of the subsystem of an automobile. which help to maintain the best driving experience on the road.

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The work done by the electric force of the charge is equal to the change in kinetic energy, equal to 5x [tex]10^{-4}[/tex] J.

The work done by the body in motion is equal to the change in kinetic energy or the difference between the final and initial kinetic energy.

[tex]W=[/tex]Δ[tex]K.E=K.E_{f} -K.E_{i}[/tex]

Given, the kinetic energy found when the charge has moved 3 cm is  5x [tex]10^{-4}[/tex] J.

Therefore, work done by the electric force, [tex]W=[/tex]  5x [tex]10^{-4}[/tex] J.

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Answer:    Let the speed of sound equal 331 m/s

f = f0 ( (V ± Vo) / V)      observer moving

f = 482 (331 + 25.6) / 331 = 519 /s    (observer moving towards source)

f = 519 (331 / (331 - 25.6) = 563 / s    (source moving towards observer)

Check: For both moving:

f = f0 ((331 + 25.6) / (331 - 25.6)) = 1.17 f0 = 482 * 1.17 = 563 / s

Answer:

3 seconds

Explanation:

  initial velocity = 0ms

  final velocity = 24ms

  time(1) = 3s

  acceleration = ?

  time (2) =?

 solution:-

                          to find acceleration,

                 a =( vf - vi ) / t

                    = 24-0 /3

                    = 24/ 3

                 a= 8ms^-2

                          To find time(2)

                 t= (vf - vi )/ a

                   = 24- 0 / 8

                   = 24/ 8

                   = 3seconds

Answer:

See Explanation

Explanation:

salt, water, rocks, sediment, trash.

Abiotic factors are non-living organisms in an ecosystem.

Hope this helps and have a nice day

Explanation:

They are useful until the magnetic flow is continuing else they become useless

Light Density

[tex]\frak{\fcolorbox{black}{pink}{Black Pink in your area}} [/tex] ~←(>▽<)ﾉ

#1

Use trigonometry to find defraction angle

So

#2