Given the graph below, the resistance of the wire in Ohms is:

a 0.25
b 4
c 3.75
d 0

Answer:

B. the boy is not lifting more than 1m up, as the question states

The time that takes for the train that is traveling with an initial velocity of 20.1 m/s to stop is 402 seconds.    

The time that will take for the train to stop can be calculated with the following kinematic equation:

[tex] v_{f} = v_{i} + at [/tex]   (1)

Where:

[tex] v_{f}[/tex]: is the final velocity = 0 (when it stops)

[tex] v_{i}[/tex]: is the intial velocity = 20.1 m/s

a: is the acceleration = -0.0500 m/s²

t: is the time =?

By solving equation (1) for t, we have:

[tex] t = \frac{v_{f} - v_{i}}{a} = \frac{0 - 20.1 m/s}{-0.0500 m/s^{2}} = 402 s [/tex]

Therefore, it will take 402 seconds for the train to stop.  

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The answer would be B.) Electric Energy

Answer:

b.electric energy

we need electric energy to make the heater work.

Given :

Mass =5kg

T

1

=20

∘

C,T

2

=100

∘

C

ΔT=100−20=80

∘

C

Q=m×C×ΔT

where C= specific heat capacity of water

=4200J/(kgK)

Q=5×4200×80

=1680000 Joule.

=1680KJ

Answer:

2500N.

Explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

Explanation:

Force = mass × acceleration

Mass = 900kg

Acceleration = velocity ÷ time

Velocity = 60km/hr = 60 × 1000 ÷ 3600

Velocity = 60000 ÷ 3600

Velocity = 16.67m/s

To get the time

Velocity = Distance ÷ time

16.67 = 50 ÷ time

Cross multiply

16.67 × time = 50

time = 50 ÷ 16.67

time = 3 seconds

Acceleration = 16.67 ÷ 3

Acceleration = 5.56m/s²

Therefore, Force = 900 × 5.56

Force = 5004 Newton

Answer:

The metal base and the plastic housing are sealed together to complete the tea kettle body.

Explanation:

hope this helps :D

Answer:

9800 J

Explanation:

P.E = mgh

P.E = (10.0)(9.8)(100) = 9800 J

Answer:

When any work is done against friction then work done opposes to frictional force.

Answer:

The impression of the image on the retina lasts for about 1/16th of a second after the removal of the object. If a burning stick of incense is revolved at a rate of more than sixteen revolutions per second, we see a circle of red light due to persistence of vision.

Explanation:

Answer:

d. both a and b

Answer:

potential energy

Answer:

Hi, There! The Correct Answer is Below!

unit of speed is the meter per second (m/s

Explanation:

Some Extra Information! :)

Speed is a measure of how fast something is travelling. The most common units of speed are metres per second (m/s), kilometres per hour (km/h) and miles per hour (mph). In a typical car journey the speed of the car will change. The distance divided by the time will calculate the average speed of the car.

___________________________________________________________

-DarkSpirit-

Explanation:

The answer is magnetic north pole

Answer:

B

This is because frictional energy is similar to thermal energy in a system. Therefore the thermal energy produced is equal to

Answer:

the atom becomes an isotope of the same element

Explanation:

isotopes are elements with the same atomic number but different mass number

Answer:

Q:

What characteristic is shared by sunspots, solar flares, and coronal mass ejections? Select the two correct responses.

A:

They tend to occur during active periods of the solar cycle. & They are caused by outward fluctuations of the sun's magnetic field.

Q:Drag each item to the correct location.

A: sunspot: cooler area on suns surface where the magnettic field emerges

solar flare: intense burst of radiation coming from the rapid release of magnetic energy

coronal mass ejection: large bubble of plasma from the rapid release of magnetic energy

Q: Which is the cause of the sun's magnetic properties?

A: uneven churning of plasma

Explanation:

took quick check

good luck yall

The uneven churning of plasma is the cause of the sun's magnetic properties, therefore the correct answer is option B.

A magnetic field could be understood as an area around a magnet, magnetic material, or an electric charge in which magnetic force is exerted.

For a simple bar magnet, N-pole and S-pole are the points on a magnet that have the strongest magnetic field. The magnetic field originates from the north pole and terminates in the south pole of a magnet.

The positively charged ions and negatively charged electrons that make up the plasma of the Sun move around a lot due to its high temperatures. Multiple intricate magnetic fields that twist and turn are produced by the moving plasma. A magnetic field is produced by the extremely hot plasma that escapes from the Sun as the solar wind.

Thus, The sun's magnetic properties are caused by uneven plasma churning, so option B is the correct answer.

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Explanation:

because his lower body is in inertia of motion.

Hope it helps

means that a body is in motion, and its velocity is measured in meters per second. And, that velocity is increasing by two meters per second, every second.

........................

[tex]\huge\mathfrak\green{True}[/tex]

Answer:

Displacement. Units of measure metre (m)

Explanation:

Delta x Δx stands for displacement, or change in position.

[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{15-0}{10}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{15}{10}[/tex]

[tex]\\ \sf\longmapsto Acceleration=1.5m/s^2[/tex]

Average acceleration is calculated using the following formula: Average Acceleration = Change in Velocity/ Time.

Acceleration is a fundamental concept in physics that measures the rate of change of an object's velocity with respect to time.

It quantifies how quickly an object's speed or direction of motion is changing.

Acceleration = Final velocity  − Initial velocity/ Time

                        = 15 − 0/ 10

                         = 15/ 10

                         = 1.5 m/s²    

Therefore, The cyclist's average acceleration  is 1.5 m/s²            

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Answer:

[tex]a)uf = 205 + 35 - 11 \\ = 240 - 11 \\ = 229j \\ b)q(heat \: transferd) = 229 - 205 - 11 \\ = 24 - 11 \\ = 13j \\ thank \: you[/tex]

The heat transferred is

a) u f = 205+35-11

      =240-11

      = 229 j

b) q (heat transferred ) = 223-205-11

   = 24-11

   = 13 j

While a thermodynamic gadget passes thru an exchange in the state, a succession of states exceeded could be termed as a course of the device or direction of an alternate country. If the route of change of kingdom is completely distinctive, route of alternate of the nation may be termed as thermodynamic manner.

The technique is described via a direction, which is the non-stop collection of consecutive states via which the machine passes, consisting of the initial nation, the intermediate states, and the very last state. The process has a course along the course.

An asset whose price would not depend upon the course taken to attain that unique price is thought to as kingdom capabilities or point features. In contrast, those capabilities which do depend upon the direction from points are referred to as course features.

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Answer:  1231.2 km/h

Explanation: 342 x 3.6 ( because 1 m/s equal 3.6 km/h)

Answer:

true

Explanation:

Answer:

Pascal

it is derived of force and area

Answer:

none of the above

Explanation:

All of them are derived units

Answer:

v=237ml m=? density(rho) = 1.59 g/ml

density = mass/volum

mass= (density)(volume)

m=(1.59)(237)

m=376.83g

Answer:

A vector has magnitude (size) and direction. The length of the line shows its magnitude and the arrowhead points in the direction. We can add two vectors by joining them head-to-tail:

Explanation:

Answer:

energy power

Explanation:

energy power

We have that the Three  consequences of lack of basic services in community​ are

-Educational Impact

-Insecurity

-Poverty

Lack of basic services in community​

There are many consequences that result from the lack of basic services in a community​ but i shall focus on these three as they are very major impacts

-Educational Impact

Basic service like Water,Electricity ,Mobility and close Proximity to market place has a major impact on the ability of a person pursue educational attainments.we live in a modern world and without power(as) electricity we can not do much of studying in this times

-Insecurity

The Human mind is built with a default setting of Survival.Without the basic services provide persons of low moral will tend to go into illegal acts to survive as the basic needs are necessary for survival

-Poverty

For a community to  grow it is necessary that the right environment is made available for growth and if these requirements are not meet in form of basic services in community​ the community falls under the threat of falling into poverty

In conclusion

The Three  consequences of lack of basic services in community​ are

-Educational Impact

-Insecurity

-Poverty

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Answer:

International Bureau of Weights and Measures (BIPM) is an international organization founded to bring about the unification of measurement systems, to establish and preserve fundamental international standards and prototypes, to verify national standards, and to determine fundamental physical constants. The bureau was established by a convention signed in Paris on May 20, 1875, effective January 1876. In 1921 a modified convention was signed.  The convention provides for a General Conference that meets every four years to consider required improvements or modifications in standards. An International Committee of Weights and Measures, composed of 18 scientists elected by the conference, meets annually to monitor worldwide uniformity in units of measure.

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Answer:

Yes

Explanation: Thats exactly how it goes