How much will stretch a spring that has spring constant of 735 N/m, if you vertically hung a 2. 30 kg object from it. How much work must an external agent do to stretch the same spring 6. 50 cm from its unstretched position?

Answer:

the same    588 N

Explanation:

Answer:

Heat flows from the reactor to the water

Explanation:

Good luck! :)

The index of refraction of this liquid will be 1.28. It is found as the ratio of the sin of the angle of incidence and the angle of reflection.

The refractive index of a substance is a dimensionless quantity that specifies how quickly light passes through it in optics.

The given data in the problem is;

Angle of incidence (i)= 65°

Angle of refraction(r) = 42°

The formula for the index of refraction is;

[tex]\rm n = \frac{sin \ i }{sin \ r} \\\\ \rm n = \frac{sin 65 ^0}{sin 42^0} \\\\ n=1.28[/tex]

Hence, the index of refraction of this liquid will be 1.28.

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Answer:

See below

Explanation:

Find the NET forces on the objects

A  20==>

B    0

C  30==>

D  15==>    

So biggest accel = C because it has the most force acting on it

 next is A because it has the next biggest force

    next is  D        then    B ...B has no net force acting on it  

The tension in the string at the 60-cm mark will be 0.9 N.The tension force is applied along the whole length of the wire, pulling energy equally on both ends.

The tension force is described as the force transferred through a rope, string, or wire as it is pulled by opposing forces.

The given data in the problem is;

The length of  the stick is, L= 1.20 m =120 cm

T is the tension in the string at the 60-cm mark;

T₁ is the tension at the 20-cm mark

From the torque equilibrium law;

[tex]\rm mg(30)-T_2(40)+T_2 (40) =0 \\\\\ T_1(0)=mg (30)\\\\\ T_2(40)=1.2 (30) \\\\ T_2= 0.9 \ N[/tex]

Hence the tension in the string at the 60-cm mark will be 0.9 N.

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Answer:

1/3 amp

Explanation:

V = IR

V/R = I

120 / 360 = 1/3 amp

For a 100-Amp, 120/240-V, 3W commercial service, 3 AWG copper conductors are the smallest permitted for the ungrounded conductors.

AWG stands for American Wire Gauge (AWG).

This is a measurement of the thickness of conductive wires. It is usually applied for the copper conductors in shielded and unshielded twisted-pair cable.

Thus, for a 100-Amp, 120/240-V, 3W commercial service, three (3) AWG copper THHN/THWN conductors are the smallest permitted for the ungrounded conductors.

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Answer:

see below

Explanation:

You will need t find the volume of the sphere

 4/3 pi r^3    divide into the mass

1431 / (4/3 pi (5.8)^3) = 14 gm /cm^3

Answer:

[tex]194.44kw[/tex]

Explanation:

[tex]power = \frac{workdone}{time \: taken} [/tex]

[tex] p = \frac{8750000}{45} [/tex]

[tex]p = 194444.44watt[/tex]

[tex]p = 194.44kw[/tex]

Current

Hope this helps!

Answer:

v1-v2    is motion of m2 relative to m1     v2-v1 is motion of m1 relative to m2

Explanation:

Answer:

has free electrons

Explanation:

A conductor has free electrons while an insulator does not. Free electrons are electrons which are not bounded tightly to their parent atoms, and are free to move given the right conditions (ie. a strong EM field).

Answer:

electrical 'pressure' measurement

Explanation:

Answer:

this may not be what you're looking for but here you go

Explanation:

A horizontal line means the object is not changing its position - it is not moving, it is at rest. A downward sloping line means the object is returning to the start. Speed-Time graphs are also called Velocity Time graphs. Speed-Time graphs look much like Distance-Time graphs.

Answer:When the image distance is positive, the image is on the same side of the mirror as the object, and it is real and inverted. When the image distance is negative, the image is behind the mirror, so the image is virtual and upright.

Explanation:

For someone who claims that based on temperature measurements, the temperature of fluid rises during a throttling process,  this assertion is true since no thermodynamic rules are broken.

Generally, Thermodynamics is simply defined as a field of science that is responsible for the relationship between heat and other types of energy.

In conclusion, The temperature of the fluid fluctuates or stays the same during the throttling process.

As a result, this assertion is true since no thermodynamic rules are broken.

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Current theories can't describe the conditions that existed in the universe during the Planck era because of energy fluctuation.

He is referred to as the father of quantum mechanics and postulated that the energy of light is proportional to the frequency with the constant being referred to as planck's constant.

Current theories can't describe the conditions that existed in the universe during the Planck era because of energy fluctuation which led to the gravitational field to randomly warp space and time.

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Answer:

it is a magnetic field

Explanation:

Answer:

please do not trust those scam links

Answer:

Explanation:

Part A

Resistances in Series Add

Rt = R1 + R2

Rt = 33 + 22

Rt = 55 ohms

Part B

Current is found by using ohms law

I = E/R

E = 120 volts

R = 55 ohms

I = 120/55

I = 2.18

Part C

E = I * R

E = ?

I = 2.18

R = 22 ohms

E = I * R

E = 2.18 * 22

E = 48 volts when I is not rounded in Part B

E = I * R

E = ?

I = 2.1818...

R = 33

E = 2.181818... * 33

E = 72 when the repeating decimal is allowed to repeat.

Part D

The total voltage drop across both resistors adds

E = 72 + 48

E = 120 Volts

Answer:

1kg

Explanation:

Use the formula

F=ma

m=F/a

m=2N/2m/s^2

m=1kg

Standing waves is the perfect answer for this

The work done by a gas during an isothermal process is equal to -23.079 Joules.

Mathematically, the work done by a gas during an isothermal process is given by this formula:

W = nRTln(P₂/P₁)

Where:

Given the following data:

Initial volume = 2.33333 L to m³ = 0.00233333 m³.

Initial pressure = 9 kPa.

Final volume = 7 L to m³ = 7000 m³.

Final pressure = 3 kPa.

Next, we would determine the temperature of this gas by using the ideal gas equation:

T = PV/R

T = (9000 × 0.00233333)/8.314

T = 2.526 K.

Now, we can calculate the work done by this gas:

W = nRTln(P₂/P₁)

W = 1 × 8.314 × 2.526 ln(3000/9000)

W= 21 × ln(0.3333)

W = 21 × (-1.099)

W = -23.079 Joules.

From the first law of thermdynamics, the amount of heat added to the gas during this isothermal process is given by:

Q = -W

Q = -(-23.079)

Q = 23.079 Joules.

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Answer:

Its 57.723 billion meters but D is the closest to that.

Answer:

dd=4.3 ly=4.3 •9.46•10°15 m=4.1 10°16m.

Explanation:

For a radio station broadcasts at a frequency of 83.8 MHz with a power of 16.5 kW, the number of photons is mathematically given as

P=6.92*10^{29}photon/sec

Generally, the equation for the energy   is mathematically given as

E=hf

Therefore

E=6.63*10^{34}*83*10^6

E=5.561*10^26J

In conclusion, the number of photons

P=dN/dt

P=38500/5.561*10^{26}

P=6.92*10^{29}photon/sec

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Answer:

I think the answer would be B

Explanation:

Hope this helps:)...if it's wrong I'm sorry for wasting your time and may God bless you:)

Answer:

10 m^3 /s

Explanation:

1 m  X  2 m  X  5 m /s = 10 m^3/s