SOMEONE HELP W THESE QUESTIONS PLEASEEE

Answer: v = 0.6 m/s

Explanation: Momentum Conservation Principle states that for a collision between two objects in an isolated system, the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision.

Momentum is calculated as Q = m.v

For the piñata problem:

\(Q_{i}=Q_{f}\)

\(m_{p}v_{p}_{i}+m_{s}v_{s}_{i}=m_{p}v_{p}_{f}+m_{s}v_{s}_{f}\)

Before the collision, the piñata is not moving, so \(v_{p}_{i}=0\).

After the collision, the stick stops, so \(v_{s}_{f}=0\).

Rearraging, we have:

\(m_{s}v_{s}_{i}=m_{p}v_{p}_{f}\)

\(v_{p}_{f}=\frac{m_{s}v_{s}_{i}}{m_{p}}\)

Substituting:

\(v_{p}_{f}=\frac{(0.54)(4.8)}{(4.4)}\)

\(v_{p}_{f}=\) 0.6

Immediately after being cracked by the stick, the piñata has a swing speed of 0.6 m/s.

Answer:

Ver respuesta en el procedimiento

Explanation:

En este caso, necesitamos la expresión que nos permite hallar el Trabajo realizado por un objeto a través de una distancia dada. Esa expresión es:

W = F * x   (1)

Donde:

W: Trabajo en Joules (J)

F: Fuerza en Newton (N)

x: Distancia o radio en metros (m)

En este caso, solo tenemos una masa de 800 lb, y la distancia que se esta recorriendo. No tenemos ningún dato adicional que nos diga si por ejemplo, es empujado por una persona o parecido, solo los datos de la masa que lleva la carreta. Por lo tanto, la única fuerza que podemos asumir se está ejerciendo, sería la fuerza del peso del objeto que se calcula así:

P = mg   (2)

Donde:

g: aceleración de gravedad (9,8 m/s²)

Ahora bien si reemplazamos (2) en (1) nos queda:

W = mgx  (3)

Y antes de realizar el cálculo debemos convertir la unidad de masa en libra a kilogramo, usando la siguiente conversión:  1 lb -----> 0,454 kg por tanto:

m = 800 * 0,454 = 363.2 kg

Ahora podemos usar (3) y calcular el trabajo:

W = 363,2 * 9,8 * 100

W = 355936 J o simplemente 355,936 kJ

Espero te sirva.

PD: También puedes usar el valor de gravedad como 10 m/s² y tendrás un resultado de 363200 J o 363,2 kJ.

Answer:

c

Explanation:

A shift inward of the production possibilities curve signifies that: C. The available production resources have decreased, so potential production levels will decrease.

A production possibilities curve (PPC) is also referred to as production possibilities frontier (PPF) and it can be defined as a curve that illustrates the maximum (best) combinations of two (2) products which can be produce in an economy if they both depend on these two (2) main factors;

Basically, the production possibilities curve (PPC) illustrates the maximum combinations of goods that are available with fixed technology and resources.

Furthermore, an inward shift of the production possibilities curve (PPC) signifies that the available resources used for production have decreased, so potential production levels would also decrease.

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Answer:

Explanation:

brash this so hard

Answer:

51°

Explanation:

Please see attached photo for explanation.

In the diagram, R is the resultant and θ is the angle of the displacement of the resultant.

The value of θ can be obtained as follow:

Angle θ =?

Opposite = 4.5 miles

Adjacent = 3.7 miles

Using Tan ratio:

Tan θ = Opposite / Adjacent

Tan θ = 4.5 / 3.7

Tan θ = 1.2162

Take the inverse of Tan

θ = Tan¯¹ 1.2162

θ ≈ 51°

Thus, the angle of the displacement of the resultant is 51°

Answer:

C3H6OH + 5O3 = 5CO2 + 6H3O

Explanation:

Answer:

a.  Frequency is 5.45 x 10^14 hz

b.   The period = 1.8 x 10^-15 sec  {or 1.8 femptoseconds]

Explanation:

The velocity of an electromagnetic wave is given by the product of the wave's frequency(f) times its wavelength(λ).  

V = λ f     where,

V is the wave speed,

f is the wave frequency,

λ is the wavelength.

To find frequency, rearrange to:

f = V/ λ

Light travels at 3.00x10^8 m/sec.

λ is 5.50 x 10^-7 m

f = (3.00x10^8 m/sec)/(5.50 x 10^-7 m)  meters cancels, secs is on the bottom]

f = (3.00/5.50)*(10^15)  [The base 10 exponent on the bottom ius subtracted from the one on top:  98-(-7)) = 15)  

f = 0.545 x 10^15 1/s or hz

f = 5.45 x 10^14 hz

b.  The period of a wave is the inverse of it's frequesncy.  It is the time it takes for 1 wave to pass.  Invert the frequency:

 Period = 1/f

  Period =  1/(0.545 x 10^15 1/s)

Period = 1.8 x 10^-15 sec  {or 1.8 femptoseconds]

Answer:

true

Explanation:

tell me if its right

Answer:

the units are joule and foot pound

one joule is defined as the amount of work done when a force of one Newton is exerted through a distance of one meter

If a 0.3% decrease in the price of a good causes its quantity supplied to decrease by 1%, then the supply is C. Inelastic.

In this scenario, the supply of the good is considered inelastic. The elasticity of supply measures the responsiveness of the quantity supplied to changes in price. When the price of a good decreases, and the quantity supplied decreases by a larger percentage, it indicates that the supply is relatively unresponsive to price changes.

To determine the elasticity of supply, we compare the percentage change in quantity supplied to the percentage change in price. In this case, a 0.3% decrease in price results in a 1% decrease in the quantity supplied. Since the percentage change in quantity supplied (1%) is greater than the percentage change in price (0.3%), the supply is considered inelastic.

Inelastic supply means that producers are less responsive to price changes, and a small change in price leads to a proportionally smaller change in quantity supplied. In such cases, producers may find it challenging to adjust their output levels quickly in response to price fluctuations.

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Answer: Scientific Hypothesis

Explanation: A scientific hypothesis is something supported or approved by a line of scientists through experiments and close observations.

Answer:

As you increase the temperature of a gas, its particles get more kinetic energy and move faster.

I’ll assume you know what KE is.

Consider a sample of confined gas, liquid, or solid material that’s not going anywhere. We may know it’s mass but since it’s not going anywhere, we conclude the sample has zero velocity and KE is zero.

Long ago it was noticed that a sample like this actually had parts and that they were moving. Each part of the sample had a part of the mass and all those random velocities had a combined Internal KE.

More KE in a particle also carried more momentum. So collisions involved more impulse … to each other and to what ever they touched. This causes more pressure to gas samples, more volume in most liquids and solids.

Put your skin on the surface and your nervous system responds to that impact too. We build devices that survive more extremes than our bodies and report more consistent results. We keep the ones that tend to agree with each others’ response and find those that have use in extreme conditions.

Watching a thermometer reading is a measure of its temperature. The laws of motion predict that the average KE of the device will become the same as its surroundings. An outdoor thermometer may be used to gauge the air temperature; but that is inaccurate when it is also gaining KE by being in sunlight or losing by rain evaporation or snow.

Answer:

v = 4.79 10³ m / s

Explanation:

For this exercise we will use the universal law of gravitation and Newton's second law

          F = G M m / r²

where G is the gravitational constant, m the mass of the satellite, M the mass of the Earth, r the distance from the center of the planet to the satellite

           F = m a

since the satellite has a circular path, the acceleration is centripetal

          a = v² / r

we substitute

          G M m / r² = m v² / r

           G M / r = v²

We calculate

          v² = 6.67 10⁻¹¹ 5.98 10²⁴ / 6.96 10⁶

          v = √ (22.94 10⁶)

          v = 4.79 10³ m / s

Answer:

7570 m/s

Explanation:

take the square root of: 6.67E-11× 5.98E24/6.96E6

The purpose of a standard drink measurement is to provide a consistent and accurate way to measure and compare the alcohol content of different alcoholic beverages. It allows individuals to track and monitor their alcohol consumption, promoting responsible drinking habits.

A standard drink measurement helps in determining the alcohol content in a given beverage, enabling individuals to understand the potential effects on their body and make informed decisions regarding their consumption. It also aids in comparing the alcohol content across different types of beverages, such as beer, wine, and spirits.

In the United States, a standard drink is defined as containing 14 grams (0.6 ounces) of pure alcohol. This measurement can vary in other countries, so it is important to be aware of local guidelines.

For example, in the U.S., a standard drink is equivalent to a 12-ounce (355 mL) beer with around 5% alcohol by volume, a 5-ounce (148 mL) glass of wine with about 12% alcohol, or 1.5 ounces (44 mL) of distilled spirits with roughly 40% alcohol.

Understanding the concept of a standard drink measurement allows individuals to track their alcohol intake accurately and make responsible choices based on their personal limits and health considerations.

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Answer:

karishma tanna

Explanation:

it is correct

Karishma Tanna was declared as the winner.

Answer:

For electrostatic paint to be applied, the vehicle needs to be grounded and positively charged. This creates a magnetic attraction to the negatively charged paint. Due to this charge, when the paint leaves the nozzle, it is attracted to the vehicle's charge and will stick to it.

Explanation:

Answer:

245W

Explanation:

Given parameters:

Mass of his body = 50kg

Height of climb  = 5m

Time  = 10s

Unknown:

Power = ?

Solution:

Power is defined as the rate at which work is done;

 Mathematically,

           Power  = \(\frac{work done}{time}\)

  Work done  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

  Work done  = 50 x 9.8 x 5  = 2450J

          Power  = \(\frac{2450}{10}\)   = 245W

Answer:

The answer is = 35.1 you can see by zooming.

Answer:

The answer would be 35.1

The value of the normal force is 3.9 x 10² newtons.

The correct answer is option C.

The coefficient of static friction between the crate and the floor is 0.11. The crate just starts moving after the force of 43 N is applied by Mary and Anne. Therefore, the force of friction that acts on the crate is equal to the maximum value of static friction, which is given by the product of the coefficient of static friction and the normal force.

The force of friction is given by: f = μN

where f is the force of friction, μ is the coefficient of static friction and N is the normal force acting on the crate.

Since the crate just starts moving, the applied force must overcome the maximum force of static friction.

Therefore, we have:

f = μNmax

and F applied = F required to overcome friction

= μNmax= 0.11 N

Thus, the maximum value of the normal force acting on the crate is given by:

Nmax = F/f = 43/0.11 = 390.9 N ≈ 3.9 x 10² N

Therefore, the value of the normal force is 3.9 x 10² newtons.

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To calculate the current, we need to find the number of helium nuclei passing through a given point per unit time. The linear density of helium nuclei (denoted by λ) is given as 9.53 × 10^7 m^(-1), which represents the number of nuclei per meter.

Since the helium nuclei are accelerated to a speed of 2.09 × 10^6 m/s, each nucleus takes a time of Δt = 1/v to pass through a given point. Therefore, the number of nuclei passing through that point per unit time is λv.

The charge of each helium nucleus is 2e, where e is the elementary charge. Thus, the total charge passing through the point per unit time is given by Q = 2e × λv.

Finally, the current (I) is defined as the rate of flow of charge, so we can write I = Q/Δt = 2e × λv / (1/v) = 2eλv^2.

Plugging in the given values, we get I = 2 × (1.6 × 10^(-19) C) × (9.53 × 10^7 m^(-1)) × (2.09 × 10^6 m/s)^2 ≈ 4.00 A.

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Answer:

\(\boxed {\boxed {\sf 96 \ m/s}}\)

Explanation:

We are asked to find the final velocity of the car given the acceleration and time. We can use the following kinematics equation to calculate the final velocity.

\(v_f=v_i+(a \times t)\)

The car starts from rest, so the initial velocity is 0 meters per second. It accelerates a rate of 40 meters per square second over a period of time of 2.4 seconds.

Substitute the values into the formula.

\(v_f= 0 \ m/s + ( 40 \ m/s^2 \times2.4 \ s)\)

Solve inside the parentheses.

\(v_f= 0 \ m/s + (96 \ m/s)\)

Add.

\(v_f= 96 \ m/s\)

The final velocity of the car is 96 meters per second.

Answer:

Wavelength of light wave = 0.6 m

Explanation:

Given:

Frequency of wave = 5 x 10⁸

Speed of light = 3 x 10⁸ m/s

Find:

Wavelength of light wave

Computation:

The size of a wave form is its spatial duration, or the duration in which the wave's form repeats.

Wavelength of light wave = Speed of light / Frequency of wave

Wavelength of light wave = [3 x 10⁸] / [5 x 10⁸]

Wavelength of light wave = 0.6 m

Answer:

1000m=1km

simple :) . . .

Answer:

the wavelength of the electromagnetic wave with a frequency is approximately 0.111 meters or 11.1 centimeters.

the electromagnetic wave falls within the radio wave.

Explanation:

Equation:

wavelength = speed of light / frequency

Given:

Frequency = 2.7 GHz = 2.7 × 10^9 Hz

so...

wavelength = (3.00 × 10^8 m/s) / (2.7 × 10^9 Hz)

then the answer would be...

wavelength ≈ 0.111 meters or 11.1 centimeters

now regarding the second question...in the given scenario, the wavelength of 11.1 centimeters is relatively long, indicating a lower frequency. Therefore, the electromagnetic wave in question falls within the radio wave part of the electromagnetic spectrum.

Answer:We have seasons because the earth is tilted (wonky) as it makes its yearly journey around the sun. The Earth's axis is tilted at an angle of 23.5 degrees. This means that the Earth is always "pointing" to one side as it goes around the Sun.

Explanation:

got this from the internet

An aircraft's true airspeed (TAS) is affected by changes in the outside air temperature (OAT). When the OAT decreases, the air density increases, and this results in an increase in the aircraft's TAS. This is because as the air density increases, there are more air molecules available to create lift, and this reduces the amount of drag experienced by the aircraft.

In simple terms, if the aircraft is flying at a constant power setting and indicated altitude, and the OAT decreases, the TAS will increase. This means that the aircraft will cover more ground in a given amount of time, and the speedometer will indicate a higher speed.

It is essential for pilots to take into account changes in OAT when calculating their TAS, as this affects their fuel consumption, flight time, and overall performance. Understanding the relationship between OAT and TAS is crucial for safe and efficient flying.

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Answer:

D

Explanation:

It says constant positive linear acceleration, which means that the velocity increases at a constant rate.

Answer:  Initial Velocity = 2.8 km/h

Final Velocity = 32 km/h

Explanation: