All foods can be classified as either good or bad for my body

Answer:

I = 1.4 [amp]

Explanation:

To solve this problem we must use ohm's law, which tells us that the voltage is equal to the product of the current by the resistance.

Therefore:

V = I*R

where:

V = voltage = 14[V]

I = current [amp]

R = resistance = 10 [ohm]

I = 14/10

I = 1.4 [amp]

Answer:

Convergent boundaries. When two plates collide and one is pushed over the other, forming a mountain.

A. Assume incompressible flow

Since volumtric flow rate will be same in both section

Q1 = Q2

A1*V1 = A2*V2

V2 = A1*V1/A2

V2 = 6.9*10^-4*288*10^-2/(3.3*10^-4)

V2 = 6.02 m/sec

B. using bernoulli's equation:

P1/rho + v1^2/2 + g*h1 = P2/rho + v2^2/2 + g*h2

Since pipes are horizontal

h1 = h2

P1/rho + v1^2/2 = P2/rho + v2^2/2

P2 = P1 + (v1^2 - v2^2)*rho/2

P2 = 1.5*10^5 + (2.88^2 - 6.02^2)*1100/2

P2 = 1.35*10^5 Pa

The rate of change in position of an object in any course. Speed is measured because the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has handiest route and no significance.

Velocity can be notion of as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.

The primary unit or the S.I. unit of velocity is m/s or ms?¹.

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46 days is the half-life of the radioisotope.

The half-life, in radioactivity, is the amount of time needed for half of the atomic nuclei in a radioactive sample to spontaneously transform into other nuclear species while emitting particles and energy, or, alternatively, the amount of time needed for the radioactive sample to disintegrate on average once every second.

The half life of a radioactive substance can be predicted by:

N(t) = N₀(1/2)^[t/t(h)]

N(t)  is the amount remaining (mg)

N₀ is the initial amount (mg)

t is the time elapsed, in days

t(h) is the half life in days.

N(t) = N₀(1/2)^[t/t(h)]

or, 0.50mg = (8.0mg)(1/2)^[184 days/t(h)]

Using logs, we can solve this for t(h):

t(h) = 46 days

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Answer:

96.3%

Explanation:

Efficiency = Work input/Work output * 100%

Work done = Force * distance\

Work done by the engine is the work output = 700 * 0.55

Work output = 423.5Nm

Work done by you is the work input = 35.7*11.43

Work input = 408.051Nm

Efficiency = 408.051/423.5 * 100

Efficiency = 0.963 * 100

Efficiency = 96.3%

Hence the efficiency of the pulley system is 96.3%

Answer:

To find the volume of a rectangular object, measure the length, width and height. Multiply the length times the width and multiply the result by the height. The result is the volume. Give the result in cubic units, such as cubic centimeters.

Explanation:

Answer:

Kinetic energy is the energy possessed by an object due to its motion. If an object is moving, then it has kinetic energy. The amount of kinetic energy depends on mass and speed.

Explanation:

Pption d. flow does not independently influence the speed of water in a stream. Instead, it is an outcome determined by the combined effects of gradient, discharge, and channel geometry.

The flow itself, or the rate at which water moves in a stream, is not an independent factor that influences the speed of water in a stream. Instead, it is a result of other factors such as gradient, discharge, and channel geometry.

a. Gradient: The gradient, or slope, of the stream affects the speed of water. Steeper gradients generally lead to faster-flowing water.

b. Discharge: The discharge of a stream, which refers to the volume of water passing through a given point in a specified amount of time, directly affects the speed of water. Higher discharge results in faster flow.

c. Channel geometry: The shape and dimensions of the stream channel also influence the speed of water. Wider and deeper channels tend to have slower flow, while narrower and shallower channels often lead to faster flow.

Therefore, option d. flow does not independently influence the speed of water in a stream. Instead, it is an outcome determined by the combined effects of gradient, discharge, and channel geometry.

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Answer:

An internal combustion engine (ICE) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high-temperature and high-pressure gases produced by combustion applies direct force to some component of the engine.

Explanation:

hope i helped! :)

Answer:

6.9 m/s

Explanation:

Answer:

A heavy ball of demolition machine is storing energy when it is held at an elevated position .

work si defined as Force multiplied by distance.

Since in situation B there's no force applied on the ball we conclude that theres in no work done in that sitaution.

Answer:

Explanation:

electron attraction between electron and nucleus = centripetal force of the orbiting electron

In fact, Bohr model depicts the atom as a nucleus surrounded by electrons in circular orbit around it, similar to the planets around the Sun. The centripetal force that keeps the electrons in circular motion around the nucles is provided by the electrostatic force between the electrons and the nucleus.

Answer:

Fg = G M m / R^2    the gravitational force (M  proton, m electron)

Fe = K e^2 / R^2   the electrical force where K = 9 *10E9 and e = charge

Fe / Fg = K e^2 / (G M m)

Fe / Fg = 9 * 10E9 * (1.6 * 10E-19)^2 / (6.67 * 10E-11 * 1.67 * 10E-27 * 9.11 * 10E-31

9 * 1.6^2 / (6.67 * 1.67 * 9.11) * 10^-29 / 10^-69

= 2.27 * 10E39  for the ratio of the two forces

Explanation:

The resources that we value—time, money, labor, tools, land, and raw materials—exist in limited supply. There are simply never enough resources to meet all our needs and desires.

Explanation:

Time, money, labor, land , and raw materials

Answer:

d = 6 km

Explanation:

In this case we have the relative speed of the boot changes, suppose that the boat and the river have the same direction when the boat goes from A to point B

       vbr = vrt + vbt

        vbr = 2 + 4

        vbr = 6 km / h

        v₁ = 6 km / h

velocity is constant

         v₁ = d / t₁

         t₁ = d / v₁

when the boat returns to the starting point the speed is both opposite

        vbr = vbt - vrt

        vbr = 4-2

        vbr = 2 km / h

        v₂ = 2 km / h

as the speed is constant

         t₂ = d / v₂

they also indicate that the total time is 4 h

       t₁ + t₂ = 4

we substitute

       4 = d / v₁ + d / v₂

       4 = d (1 / v₁ + 1 / v₂)

       d = 4 / (1 / v₁ + 1 / v₂)

let's calculate

       d = 4 / (1/6 + 1/2)

       d = 4 / 0.6666 67

       d = 6 km

Given data

*The half-life of iodine-131 is t = 8.07 days

*The amount of quantity left is N = 0.25 g

*The number of days is T = 40.35 days

The expression for the radioactivity decay is given as

Substitute the values in the above expression as

Answer:

See below

Explanation:

40.35 days / (8.07 day per half life) = 5 half lives

.25 = x ( 1/2)^5

.25 / ( 1/2)^5 = x = 8 gm originally

Answer:

Time taken = 2.444sec

Explanation:

Greetings !

Given values :-

Required values:-

Solution/ work-out:-

Firstly change the km/hr value to m/s

Then, recall the Velocity-Time Equation:

\(vf = vi \: + at\)

substitute known variables into the equation

\((12.22) = (0) + (5)t\)

Solve for time

\(t = 2.444sec\)

Hope it helps!!

ANSWER : is it a very small space at the center of the gold atom.

Complete question is;

An experiment is carried out to measure the extension of a rubber band for different loads.

The results are shown in the image attached.

What figure is missing from the table?

Answer:

17.3 cm

Explanation:

The image attached showed values for load, extension and initial length.

Now, the first length there is 15.2 cm and as such it's corresponding extension is 0 because it has no preceding measured length.

The second measured length is 16.2 cm. Since it's initial measured length is 15.2 cm, then the extension has a formula; final length - initial length.

This gives: 16.2 - 15.2 = 1 cm

This corresponds to what is given in the table.

For the next measured length, it is blank but we are given the extension to be 2.1 cm. Now, since the initial measured length is 15.2 cm.

Thus;

2.1 cm = Final length - 15.2 cm

Final length = 15.2 + 2.1

Final length = 17.3 cm

That's false.  Visibility has nothing to do with weight.

Carbon Monoxide, Carbon Dioxide, Hydrogen Sulfide, Nitrogen, Oxygen, Methane, water vapor, and a bunch of other gases are invisible, but they all have plenty of weight.

Air is invisible. If your bedroom is, say, 12-ft long, 10-ft wide, and 7-ft high, then the air inside your room weighs around 65 pounds !  

The ratio of the probability of an electron arriving at an interference maximum to the probability of an electron arriving at an adjacent minimum is 2.2.

The probability when one slit is open is given by:

P₁ = |ψ₁|²

P₂ = |ψ₂|²

When both the slits are open the expression is given by:

P = |ψ₁ + ψ₂|²

At maximum when both waves are in the same phase,

p(max) = ( |ψ₁| + |ψ₂| )²

At minimum when both waves are in different phases,

p(min) =( |ψ₁| + |ψ₂| )²

Now, according to the question,

p₁/p₂ = |ψ₁|² / |ψ₂|² = 25

By taking roots,

ψ₁/ψ₂ = 5

p(max)/p(min) = ( |ψ₁| + |ψ₂| )²/( |ψ₁| - |ψ₂| )²

p(max)/p(min) =  ( 5|ψ₁| + |ψ₂| )²/( 5|ψ₁| - |ψ₂| )²

p(max)/p(min)  = 6²/4²

p(max)/p(min)  = 36/16

p(max)/p(min)  = 2.2

The ratio of the probability at maximum to the probability at minimum is 2.2.

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154 pounds are converted to kilograms. 69.8532 Calculate a rough result by multiplying the mass number by 2.205.

How do you use the pounds to kg conversion formula?

Add 0.45359237 kg to the given number of pounds to convert it to kilograms. For instance, calculate the given 5 pounds by 0.45359237 kg to change 5 lbs to kilograms. Consequently, 5 lbs is roughly equivalent to 2.26796185 kg.

What is the quickest conversion factor between pounds and kilograms?

To use the conventional equation, multiply the amount of pounds by 2.2046. To change 50 pounds to kg, for instance, divide 50 by 2.2046; the result is 22.67985 kg. Divide 200 pounds by 2.2046 to get kilograms, which equals 90.71940 kg.

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Both are perpendicular to each other so resultant ground reaction force exerted by the floor on the volleyball player's shoes

=2088N approx

In physics, movement is the phenomenon wherein an item adjustments its function with appreciate to time. Motion is mathematically defined in phrases of displacement, distance, velocity, acceleration, speed and body of reference to an observer and measuring the extrade in function of the frame relative to that body with extrade in time. The department of physics describing the movement of items with out connection with its reason is called kinematics, at the same time as the department reading forces and their impact on movement is called dynamics. If an item isn't converting relative to a given body of reference, the item is stated to be at rest, motionless, immobile, stationary, or to have a steady or time-invariant function close to its surroundings. Modern physics holds that, as there's no absolute body of reference, Newton's idea of absolute movement can't be determined. As such, the whole thing within side the universe may be taken into consideration to be in movement.

Friction force=600 N

The normal contact force exerted by the floor on her shoes = 2000 N

Botha are perpendicular to each other so resultant ground reaction force exerted by the floor on the volleyball player's shoes=((600)^2+(2000)^2)^0.5=2088.06130178N

=2088N approx

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Answer:

The basic law of magnetism is that like pole repel one another and unlike pole attract one another

The musician needs to increase the tension in the string by approximately 29.9% to raise the frequency from C to D.

To raise the frequency of a string, a musician can change the tension on the string.

The relationship between the frequency of a string and its tension can be described by the following equation:

f = (1/2L) x \(\sqrt{(T/\mu)}\)

where f is the frequency,

L is the length of the string,

T is the tension in the string,

and μ is the linear mass density of the string (mass per unit length).

In this scenario, the musician wants to raise the frequency of the string from 65.4 Hz to 73.4 Hz by changing the tension on the string.

The length of the string is fixed at 0.600 m, and the mass of the string is given as 0.141 N.

We can start by using the given values to solve for the initial tension in the string when it is tuned to C.

Rearranging the equation above and plugging in the given values, we get:

T =  \(\mu \times (2Lf)^2\)

where μ = m/L is the linear mass density of the string,

and f = 65.4 Hz. Plugging in the values, we get:

μ = m/L = 0.141 N / 0.600

m = 0.235 kg/m

T = (0.235 kg/m)  \((2 \times 0.600 m \times 65.4 Hz)^2\)

  = 200.3 N

Now, we want to find the tension in the string that will result in a frequency of 73.4 Hz when the string is played.

Let's call this new tension T'.

Using the same equation as before, we can solve for T':

T' = μ x \((2Lf')^2\)

where f' = 73.4 Hz.

We want to find the percentage increase in tension needed to achieve this new frequency, so we can write:

% increase in tension = (T' - T) / T x 100%

Plugging in the values and solving for T', we get:

T' =   \(\mu \times (2Lf')^2\)

   = (0.235 kg/m) x \((2 \times 0.600 m \times 73.4 Hz)^2\)

   = 260.2 N

So the percentage increase in tension needed is:

% increase in tension = (T' - T) / T x 100%

% increase in tension = (260.2 N - 200.3 N) / 200.3 N x 100% ≈ 29.9%

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Answer:

hi

Explanation:

The direction of the electrical field at the remaining corner of the square is d. along the diagonal connecting this corner and another charge, away from the other charge.

Explanation:

Step 1: An electric field is generated by negative charges.

Step 2: Since three equal negative charges are located in the three corners of the square, they all create an electric field.

Step 3: Each electric field in the remaining corner will point away from the respective negative charge because negative charges repel each other.

Step 4: The total electric field in the remaining corner will be the vector sum of the individual fields.

Step 5: When combining these individual fields, they will point along the diagonal away from the negative charges.

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