Max and Jimmy continue jumping on a trampoline. When they jump at the same time, Max makes a wave crest and Jimmy makes a wave trough. What type of wave interaction occurred?

Answer:

Speed = 20 m/s

Explanation:

The speed of a bus is 72 km/h

The SI unit of speed is m/s

We need to convert it into m/s

We know that,

1 km = 1000 m

1 h = 3600 s

It means,

\(s=72\ \dfrac{km}{h}\\\\=\dfrac{72\times 1000\ m}{3600\ s}\\\\=20\ m/s\)

So, the speed of the bus is 20 m/s.

GPE=mgh

GPE=75 x 9.8 x 5

GPE = 3675 J

Answer:

Knee Pads (D)

Explanation:

Considering that Knee Pads are an optional piece of equipment in soccer (but are mostly used by goalies) and that soccer players generally don't wear them I would say that it's D

The concentration of [OH] in the basic solution is 0.177 mol/L.

To find the concentration of [OH] in the basic solution, we first need to use the balanced chemical equation for the neutralization reaction between HCl and OH-:

HCl + OH- -> H2O

We can see from the equation that 1 mole of HCl reacts with 1 mole of OH-. Therefore, the number of moles of HCl used in the reaction is equal to the number of moles of OH- in the basic solution.

First, let's calculate the number of moles of HCl used:

n(HCl) = c(HCl) x V(HCl)
n(HCl) = 0.150 mol/L x 0.0295 L
n(HCl) = 0.004425 mol

Since 1 mole of HCl reacts with 1 mole of OH-, the number of moles of OH- in the basic solution is also 0.004425 mol.

Next, we can use the volume and number of moles of OH- to calculate its concentration:

c(OH-) = n(OH-) / V(OH-)
c(OH-) = 0.004425 mol / 0.0250 L
c(OH-) = 0.177 mol/L

Therefore, the concentration of [OH] in the basic solution is 0.177 mol/L.

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The combination of a uniform flow and a source can be used to describe flow around a streamlined body called a half- body. (see video v6.5.) assume that a certain body has the shape of a half-body with a thickness of 0.5 m. if this body is placed in an airstream moving at 15 m/s, The source strength is required to simulate flow around the body is (m)= 94.2 kg.

Force is a physical appearance that happen on a object of some amount of masses and then it changes it form and move a bit that called the force. It is a vector quantity. It can be measured in Newton, Dyne.

To calculate the source strength is required to simulate flow around the body we are using the formula here is,

v= m/2*π*b

Or, m= 2*π*b*v

Here we are given,

b=  The thickness of a certain body has the shape of a half-body = 2*r = 2* 0.5 = 1 m

v = The velocity of the object. = 15 m/s.

We have to calculate the values of the source strength is required to simulate flow around the body = m kg

Now we put the values in above equation we get,

m= 2*π*b*v

Or, m= 2*π*1*15

Or, m= 94.2 kg

so we can say that , The source strength is required to simulate flow around the body is (m)= 94.2 kg

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A 12 volt car battery will produces more current than a 1.5 volt battery for a TV remote because the car battery has a greater difference in electric potential energy than a 1.5 Volt battery. The correct answer is D

The potential difference between any two point in a circuit is the work done when one coulomb of charge moves from one point to the other. Potential difference is a kind of electrical pressure difference between two point.

The difference in electric potential in a 12 Volt battery is greater than the difference in electric potential in a 1.5 Volt battery.

According to Ohm's law, Voltage supplied is proportional to current produced. That is, V = lR. Where R = resistance.

A 12 volt car battery will produces more current than a 1.5 volt battery for a TV remote because the car battery has a greater difference in electric potential energy than a 1.5 Volt battery.

Therefore, the correct answer is the option D

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Answer:

4 weight loss

Explanation:

The momentum of the water balloon at the given speed is 7.2 kgm/s.

The given parameters:

The momentum of the water balloon is calculated as follows;

P = mv

Substitute the given values of mass and velocity as follows;

P = 0.4 x 18

P = 7.2 kg m/s.

Thus, the momentum of the water balloon at the given speed is 7.2 kgm/s.

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Example of an elastic product: Smartphone

Explanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer.

Example of an inelastic product: Prescription medication

Explanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded.

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Answer:

Explanation: Pules

Answer: longitudinal (compression)

Explanation:

Answer:

no sabo por q no mi entender

The centripetal force is the gravitational force of attraction between the Earth and the Moon.

Also, the gravitational force of attraction between the Earth and the Sun is the centripetal force that causes the Earth to stay in orbit around the Sun.

Also, the gravitational force of attraction between a TV satellite, a weather satellite, or a GPS satellite and the Earth is the centripetal force that causes each satellite to stay in orbit around the Earth.

The speed of the small stone lodged in the tire is approximately 6.077 m/s and the magnitude of its acceleration is approximately 957.39 m/s^2.

First, we need to convert the rotational speed of the wheel from revolutions per minute (rev/min) to radians per second (rad/s).

w = (2 * pi * n) / 60

Where w is the angular velocity in rad/s, pi is the mathematical constant (3.14159), and n is the rotational speed in rev/min.

So,

w = (2 * pi * 120) / 60

= 2 * pi * 2

= 4 * pi rad/s

= 12.566 rad/s

The speed of a point at a distance r from the center of rotation is given by:

v = r * w

Where v is the speed and r is the distance from the center of rotation (0.48 m).

So,

v = 0.48 m * 12.566 rad/s

= 6.077 m/s

Finally, to calculate the magnitude of the acceleration of the small stone, we use the equation:

a = r * w^2

Where a is the magnitude of the acceleration.

So,

a = 0.48 m * (12.566 rad/s)^2

= 957.39 m/s^2

Rotational speed, also known as angular velocity, is a measure of the rate of change of the angular position of an object. It is expressed in units of radians per second (rad/s) or degrees per second (deg/s). In simpler terms, the rotational speed is how fast an object is rotating around its axis. The axis of rotation can be any line that passes through an object, and the direction of rotation is usually determined by the right-hand rule.

The rotational speed is a crucial concept in physics and engineering, as it affects the behavior of objects and systems. For example, the rotational speed of a car's wheels affects its speed and stability, while the rotational speed of a spinning top affects its stability and precession. In machinery, the rotational speed is an important factor in determining the efficiency and performance of equipment, such as turbines, generators, and motors.

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Height, width, and depth are three fundamental dimensions used to describe the size and shape of objects in a three-dimensional space. Each dimension serves as an auxiliary measurement to help accurately define an object's proportions.

Height refers to the vertical extent of an object, which is typically measured from its base to its highest point. This dimension helps indicate the elevation or overall "tallness" of an object in comparison to its surroundings or other objects.

Width, on the other hand, refers to the horizontal extent of an object, which is typically measured from one side to the other at the object's widest point. Width helps convey the "broadness" of an object and provides context for understanding the object's size in relation to other dimensions.

Depth, also known as the third dimension, measures the object's distance from front to back. Depth is the extent to which an object extends into the space it occupies, providing information about the object's "thickness" or "fullness."

These dimensions are crucial when working with objects in various contexts, such as design, engineering, architecture, and other fields. Height, width, and depth are used to describe the proportions and scale of objects in relation to their environment, allowing for precise measurements and accurate representations of objects in both virtual and physical spaces.

Overall, understanding and distinguishing the differences between height, width, and depth auxiliaries enables a more comprehensive and accurate interpretation of objects in three-dimensional spaces.

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Answer:

r = 0.2499 m

Explanation:

Use Coulomb's Law: \(F_{e} = kq_{1}q_{2} / r^{2}\) where Fe is the electric force, q1 and q2 are the 2 charges respectively, k is a constant (8.99*10^9 N • m^2 / C^2) and r is the distance.

\(3.6 N = (8.99*10^{9})(5*10^{-6})(5*10^{-6}) / r^{2}\)

r = 0.2499 m

The distance that should be apart from these charges should be considered when the r = 0.2499 m.

Since

Two charges of 5 x 10-6 C are a certain distance apart. These two positive charges experience 3.6 N of repelling electrical force between them

So

here we use Columb law

Electric force = k * two charges * two charges)r^2

3.6 N = (8.99*10^9) * ( 5 * 10^-6) * (5*10^-6)r^2

r = 0.2499 m.

Hence, The distance that should be apart from these charges should be considered when the r = 0.2499 m.

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Answer: the answer is c (think bc im on that too)

Explanation:

The interference is a  type of wave interaction shown in the photo. Option A is correct.

The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.

The effect is the sum of the individual wave amplitudes at each site where more than one wave is present.

When two wave pulses are traveling along a string toward each other. They meet and the phenomenon is occur known as interference.

The interference is a  type of wave interaction shown in the photo

Hence option A is correct.

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Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

\(\hrulefill\)

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

The output y(n) obtained using the DFT method is: y(n) = {48, -4 - 12ω, 28, 28}

To find the output y(n) using the DFT (Discrete Fourier Transform) method, we need to perform the following steps:

Step 1: Append zeros to x(n) and h(n) to make their lengths equal to N1 + N2 - 1.

Given:

x(n) = {1, 6, 5} (N1 = 3)

h(n) = {1, 0, 3} (N2 = 2)

We need to make their lengths equal to N1 + N2 - 1 = 3 + 2 - 1 = 4.

Appended x(n): {1, 6, 5, 0}

Appended h(n): {1, 0, 3, 0}

Step 2: Compute the DFT of the appended x(n) and h(n).

DFT of x(n):

X(k) = DFT{x(n)} = {X(0), X(1), X(2), X(3)}

where X(k) is the DFT of x(n)

DFT of h(n):

H(k) = DFT{h(n)} = {H(0), H(1), H(2), H(3)}

where H(k) is the DFT of h(n)

Step 3: Compute the element-wise multiplication of X(k) and H(k).

Multiplication:

Y(k) = X(k) * H(k) = {X(0)*H(0), X(1)*H(1), X(2)*H(2), X(3)*H(3)}

Step 4: Compute the inverse DFT of Y(k) to obtain y(n).

Inverse DFT:

y(n) = IDFT{Y(k)} = {y(0), y(1), y(2), y(3)}

where y(n) is the desired output.

Performing the calculations:

DFT of x(n):

X(0) = 1 + 6 + 5 + 0 = 12

X(1) = 1 + 6ω - 5 + 0 = 2 + 6ω

X(2) = 1 + 6ω^2 + 5 + 0 = 7 + 6ω^2

X(3) = 1 + 6ω^3 + 5 + 0 = 7 + 6ω^3

DFT of h(n):

H(0) = 1 + 0 + 3 + 0 = 4

H(1) = 1 + 0ω - 3 + 0 = -2

H(2) = 1 + 0ω^2 + 3 + 0 = 4 + 0ω^2

H(3) = 1 + 0ω^3 + 3 + 0 = 4 + 0ω^3

Multiplication:

Y(0) = X(0) * H(0) = 12 * 4 = 48

Y(1) = X(1) * H(1) = (2 + 6ω) * (-2) = -4 - 12ω

Y(2) = X(2) * H(2) = (7 + 6ω^2) * (4 + 0ω^2) = 28 + 0ω^2

Y(3) = X(3) * H(3) = (7 + 6ω^3) * (4 + 0ω^3) = 28 + 0ω^3

Inverse DFT:

y

(0) = Y(0) = 48

y(1) = Y(1) = -4 - 12ω

y(2) = Y(2) = 28 + 0ω^2

y(3) = Y(3) = 28 + 0ω^3

Therefore, the output y(n) obtained using the DFT method is:

y(n) = {48, -4 - 12ω, 28, 28}

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These brown dwarfs can be distinguished from other star-like objects because they exhibit absorption lines from the ammonia molecule in the spectra.

Brown dwarfs are star-like (small) objects in the external space that exhibit very low cold temperatures.

Brown dwarfs are not only small stars but also huge gaseous planets such as Saturn and Jupiter.

In consequence, brown dwarfs are a wide category that includes both planets and star-like objects.

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Answer:

B. Projectile motion is the correct one

Answer:

Explanation:

egg of an ostrich is the biggest

Note that the sentences with the blank spaces are completed as follows;

The periodic table, commonly known as the periodic table of elements, is an arrangement of chemical elements in rows and columns. It is frequently utilized in chemistry, physics, and other disciplines, and is widely regarded as a chemical icon. Because of the arrangement of the elements, it is known as the periodic table.

The periodic table is important because it is arranged to give a wealth of information on elements and their relationships to one another in a single reference.

The table may be used to forecast the characteristics of all elements, even those yet to be found.

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The equal and opposite force for the force of the elevator floor pushing up on the person as described by Newton's third law is the weight and the reaction force from its effect.

This is referred to as a device which is used in the vertical transportation of goods and people among the floors in a buildings.

When an individual steps into the elevator, the weight acts on it and it is known as a downward force while the reaction acts upward in an opposite reaction as described by Newton's third law in this scenario.

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Answer:

probaby not

Explanation:

you might get thrown in jail tho

Answer:

F. 0J

Explanation:

At the objects highest point in the trajectory the KE = 0 since this trajectory is completely vertical with no x-component but its PE would be greatest at this point.

KE = (1/2)mv²

KE = 0; because velocity equals 0

PE = m*g*h

PE = 1kg*(9.81m/s^2)*10m

PE = 98.1J

Answer:

Smart Meters measure both the amount of electrical energy used and the time at which it is being used because they are used to monitor the energy consumption at real time, such that the time of use of energy can be monitored, thereby enabling several utility functions for load sharing and maintenance, including;

i) Time of use  tariffs, where energy is billed based on peak and off peak periods, which increases profits to the producer, reduces cost for some consumers, encourages more even hourly and daily usage of electricity, lower maintenance cost, lower capital expenditure for peak stations, and reduces carbon emission

ii) Guarantees more accurate energy consumption measurement and billing

iii) Accurate crew dispatch to fault locations

iv) Prevent fraud due to tampering with meter

v) Increase customer confidence in billing

Explanation:

The new g = 3.16 m/s².

11 oscillations in 18.5 s

The duration of an oscillation is referred to as the time period.

T = 18.5 / 11 = 1.68 s

mass, m = 200 g = 0.20 kg

Δx = 22.8 cm = 0.228 m

ω = 2π / T = (2 x 3.14) / 1.68 = 3.73 rad/s

\(\omega =\sqrt{\frac{K}{m}}\)

Where, K is the spring constant

K = ω² m = 3.73 x 3.73 x 0.20 = 2.78 N/m

Now, mg = K Δx

0.20 x g =2.78 x 0.228

g = 3.16 m/s²

A sine wave—a wave with everlasting motion like the side-to-side swing of a pendulum or the up-and-down action of a spring with a weight—is an example of an oscillation. An oscillation is a periodic motion that repeats itself in a regular cycle. Around an equilibrium point or mean value, an oscillating movement takes place.

Free, damped, and forced oscillation are the three basic types of oscillation. A body is said to be oscillating freely when it vibrates at its own frequency.

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