A simple harmonic wave of wavelength 18.7 cmand amplitude 2.34 cm is propagating in the negative x-direction at 38.0 cm/s.

a. Find its angular frequency.
b. Find its wave number.

From the analysis, it can be concluded that planet A has the strongest gravitational field, followed by planet C, and planets B and D have the same gravitational field strength.

The gravitational force acting on various masses is measured on different planets. The table shows the measured values for the forces acting on the corresponding masses:Planet Force (N) Mass (kg)A 8.0 0.50B 30 3.0C 45 3.0D 60 6.0

Method for comparing the gravitational field strengths on the different planets:First, we can use the formula for calculating gravitational force: \(`F = G (m_1m_2 / r^2)`\)where G is the universal gravitational constant `\(6.67 * 10^{-11 }Nm^2/kg^2\), m1 and m2 are the masses of the two objects in kg, and r is the distance between the centers of the objects in meters.

We know that the force is proportional to mass (F = ma). So we can calculate the acceleration due to gravity (g) on each planet by dividing the force by the mass. Therefore, we can use the formula: `g = F / m`.

Comparing the gravitational field strengths on the different planets:We will calculate the acceleration due to gravity (g) on each planet.

For planet A: `

g = F / m

= 8.0 N / 0.50 kg

= 16 \(m/s^2\)`

For planet B: `g = F / m

= 30 N / 3.0 kg

= 10 \(m/s^2\)

For planet C: `g = F / m

= 45 N / 3.0 kg

= 15 \(m/s^2\)

For planet D: `g = F / m

= 60 N / 6.0 kg

= 10 \(m/s^2\)

`So we see that planet A has the strongest gravitational field, followed by planet C, then planet B and planet D have the same gravitational field strength.

Know more about   gravitational field   here:

https://brainly.com/question/31829401

#SPJ8

Answer:

Total momentum = 16 Kgm/s

Explanation:

Let the momentum of the two balls be A and B respectively.

Momentum A = 16 kgm/s

Momentum B = 0 kgm/s (since the ball is at rest).

Total momentum = A + B

Total momentum = 16 + 0

Total momentum = 16 Kgm/s

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

\( Momentum = mass * velocity \)

Total momentum of both the balls after the collision is 16 Kg.m/s

Given:

Momentum= 16 kg.m/s

To find:

Total momentum of both the balls after the collision.

What is momentum?

 Consider the momentum of the two balls be A and B respectively.

Momentum A = 16 kg.m/s

Momentum B = 0 kg.m/s (since the ball is at rest).

Total momentum = A + B

⇒ 16 + 0

Total momentum= 16 kg.m/s

Learn more:

brainly.com/question/20182620  

The mass of the ore required to make the lead sphere 7 cm is 17.7 kg.

The radius of the lead sphere = 7 cm

The density of the lead = 11.4 g/cm³

The efficiency of lead extraction = 92.5 %

Let the mass of the lead = m.

Let the mass of the ore = M.

So the mass of the lead is,

\(m =(Density) \times[ \frac{4}{3} \pi(Radius) ^{3} ]\)

\(m = 11.4 \times \frac{4}{3} \times \frac{22}{7} \times( 7 )^{3} \)

\( = 16385.6 \: g\)

\( = 16.38 \: kg\)

The efficiency constant is,

\(η = \frac{mass \: of \: lead}{mass \: of \: ore} \)

\(η = \frac{m}{M}\)

\(92.5\% = \frac{16.38}{M}\)

\(M = \frac{16.38}{ \frac{92.5}{100} } \)

\(M = \frac{16.38}{0.925} \)

\( = 17.7 \: kg\)

Therefore, the mass of the ore required to make the lead sphere of 7 cm is 17.7 kg.

To know more about ores, refer to the below link:

https://brainly.com/question/4712893

#SPJ4

Answer:

The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats. So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected. ... These sounds will interfere to produce detectable beats.

Explanation:

Answer:

The mineral's hardness is greater than 4 but less than 5.5 on the Mohs hardness scale.

The correct graph should have a positive slope for the initial acceleration phase, a horizontal line for the constant velocity phase, and a negative slope for the deceleration phase.

To determine which graph represents the motion correctly, let's analyze the given information step by step.

The car starts from rest and accelerates at 1 m/s² for 2 seconds.

During this period, the velocity of the car increases linearly, as the acceleration is constant. Therefore, the graph representing this phase should be a straight line with a positive slope.

The car then continues at a constant velocity for 10 seconds.

Since the car maintains a constant velocity during this period, the graph representing this phase should be a horizontal line, indicating no change in velocity.

The car sees a tree blocking the road and applies brakes, decelerating at 1 m/s² until it comes to rest.

During this phase, the car's velocity decreases linearly due to the deceleration. Therefore, the graph representing this phase should be a straight line with a negative slope.

Based on this analysis, the correct graph should have a positive slope for the initial acceleration phase, a horizontal line for the constant velocity phase, and a negative slope for the deceleration phase.

Among the given options, the graph that represents the motion correctly is likely to be a graph that meets these criteria. However, since the options were not provided, I'm unable to directly identify the correct graph.

For more such questions on Acceleration phase

https://brainly.com/question/26408808

#SPJ11

Answer:

A

Explanation:

Ap3X

Make be branilest if truly the best!

Answer:

Explanation:

The wording on some of these choices is very strange; I'm not sure exactly what they are stating. First of all, A. is definitely a choice because if both the charges were opposite, they would be attracted to one another as opposed to be repelled away from one another, as they are when they are both positive. What happens is that the charges go OUT from the positive charge and INTO the negative; so as far as the field lines around both charges would change direction...no; only the direction of the field lines would change on the positive charge (which is the one on the left). In that space where D is filled in by the field lines going OUT of the positive charge and INTO the negative one, the lines there are naturally closer together, and that is the point where the charge is the greatest. So if that is what is meant by the field lines getting closer together, then yes, they do. As far as choice D. again the field lines on the negative charge don't change, only the ones on the positive charge change.

The arrows on the field lines surrounding the negative charge would need to point toward instead of away from the charge.

These pattern of lines, sometimes referred to as electric field lines, point in the direction that a positive test charge would accelerate if placed upon the line. As such, the lines are directed away from positively charged source charges and toward negatively charged source charges.

“ When an object has more electrons than protons then the object is said to be negatively charged.”

“When an object has more protons than electrons, the object is said to be positively charged.”

Know more about field lines here

https://brainly.com/question/23722531

#SPJ2

Answer:

Lithium

Explanation:

Elements that are metals are tend to lose electrons and become positively charged ions called Cations. Elements that are non metals tend to gain electron and become negatively charged ions called Anions.

The required radius of the shaft is 1.66 cm.

A radius of a circle or sphere is any of the road segments from its middle to its perimeter, and in greater current usage, it's also their duration. The name comes from the Latin radius, which means ray however also observed as a chariot wheel.

The radius of a circle is the gap from the middle of the circle to any factor on its circumference. it's also denoted via 'R' or 'r'.while the radius of a circle runs from its center to its facet, the diameter runs from aspect to aspect and cuts thru the middle. A circle's diameter basically splits the shape in half.

Calculation:-

w = v/r

W₁/w₂ = r₂/r₁

r₂ = (w₁/w₂) × r₁

   = (33.3/60) × 3

  = 1.66 cm

Learn more about radius here:-https://brainly.com/question/20733940

#SPJ4

Centripetal refers to “center-seeking” Quantifies the change in directionof the velocity The acceleration is directed toward the center of the circle of motion.

The magnitude of the centripetal acceleration is given by V^2/r, the direction is toward the center of the circle. The tangential component of the acceleration is due to changing speed. The centripetal component of the acceleration is due to changing direction.

When an object is rotating at a constant angular velocity, the whole object has a constant angular velocity. Therefore, every mint on the turntable has the same, constant angular velocity.

The acceleration which causes the tangential velocity to change direction is called Centripetal acceleration. Centripetal acceleration is always in toward the center of the circle.

To know more about centripetal acceleration here

https://brainly.com/question/26501154

#SPJ4

Troposphere, stratosphere, mesosphere, thermosphere and exosphere.

Earth's atmosphere has five major layers.

From lowest to highest, layers are the troposphere, stratosphere, mesosphere, thermosphere and exosphere.

a) What are the conditions in the troposphere?

The atmospheric temperature descends upward with a slope of ~10 K km−1 for dry air and ~7 K km−1 for wet air in troposphere.

The temperature of troposphere decreases with an increase in height.

B) What sort of temperatures would she experience in the stratosphere? What other layer is found within the stratosphere?

The temperature in the stratosphere ranges from- 60° F at the troposphere boundary to -5°F at the top.

The temperature increase is due to the ozone layer that absorbs ultraviolet light from solar radiation.

C)What sort of temperatures would she experience in the mesosphere?

The temperature in the mesosphere ranges from -2.5°C to -90°C

The temperature decreases because of a decrease in the absorption of penetrating solar radiation.

The atmosphere gets cooler with an increase in altitude because an increase in distance from the Earth's surface.

D)What sort of temperatures would she experience in the thermosphere? What other layer is found within the thermosphere?

4,500°F is the temperature of thermosphere.

Temperatures climb sharply in the lower thermosphere , then level off and hold fairly steady with increasing altitude above that height.

Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.

Learn more about layers of atmosphere here:

https://brainly.com/question/25881294

#SPJ1

The force F exerted by an electric field on a test charge q is given by:

From this equation we notice that if we change the test charge then the force will change as well.

Therefore, the forces on the charges will not be the same.

We can't determine the electric field without further information on the problem; we need the force on one of the test charges to determine the magnitude of the field.

Answer:

cold

Explanation:

The CMB radiation was emitted at a redshift of approximately 1100 if the cosmological microwave background was emitted by a plasma with a temperature temperature of 4000 K and is observed with a temperature of 2.73 K today

In order to find the redshift at which the cosmic microwave background (CMB) radiation was emitted, use the formula: z = (T_observed / T_emitted) - 1, where z is the redshift factor, T_observed is the observed temperature of the CMB radiation (2.73 K), and T_emitted is the temperature at which the CMB radiation was emitted (4000 K).z = (T_observed / T_emitted) - 1z = (2.73 K / 4000 K) - 1z = -0.99932

Therefore, the CMB radiation was emitted at a redshift of approximately 1100.

More on CMB radiation: https://brainly.com/question/31963347

#SPJ11

The granules on the surface of the sun that appear to be plasma boiling is caused by convection in the plasma. The granules on the sun's surface are the tops of many convection cells in the sun's outer layer.

They are regions where hot plasma rises and cool plasma sinks, causing the surface to appear like it is boiling. The plasma is transported from the sun's interior to the surface by convection, which is the movement of material caused by differences in temperature and density.The sun's outermost layer is made up of plasma, a hot, electrically charged gas. It is constantly in motion, with hot plasma rising and cool plasma sinking.

The rising and sinking of plasma causes the surface to appear as though it is boiling, with large bright areas separated by dark lanes. These bright areas are known as granules, and they are typically about 1000 kilometers in diameter.Granules are caused by convection, which is the process by which heat is transported from the sun's interior to its outermost layer. As hot plasma rises, it cools and sinks back down to the sun's interior, completing the convection cycle. The process of convection is similar to the movement of air in the earth's atmosphere, which is why the granules on the sun's surface are often compared to clouds.

To learn more about plasma visit;

https://brainly.com/question/31510915

#SPJ11

Answer:

its either A or D

Explanation:

They use foam walls in like asylums but in the movies all the bad guys say "They can't hear you the metal is too thick" so its either one of those, hope it helped

Sound absorbing foams are typically softer and more lightweight than their sound blocking counterparts. This open and flexible cell structure acts as a natural soundwave absorber and prevents noises from reverberating off hard surfaces like walls, floors and ceilings.

"A sound wave is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound. The source is some object that causes a vibration, such as a ringing telephone, or a person's vocal chords."

"Sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain."

Sound is defined as vibrations that travel through air or another medium that can be heard when they reach a person's or animal's ears. Noise is defined as unwanted sound. In engineering, noise has the additional connotation of signals varying over time without meaning, whereas sound connotes meaningful signals.

Know more about sound wave here

https://brainly.com/question/11797560

#SPJ2

Analyzing functions with successive differences is an important skill in mathematics. It involves identifying patterns in the differences between consecutive terms of a sequence, and using these patterns to predict future terms.

The process can be applied to a wide range of functions, including linear, quadratic, and exponential functions. To analyze a function with successive differences, you first need to identify the sequence of terms that defines the function. Then, you calculate the differences between consecutive terms and look for patterns in these differences. If the differences are constant, the function is linear. If the differences increase by a constant amount, the function is quadratic. And if the ratios of the differences are constant, the function is exponential. This skill is useful in a variety of contexts, from predicting future stock prices to analyzing data in scientific experiments, as it is a complex topic that requires explanation and context.

To know more about functions visit :

https://brainly.com/question/31062578

#SPJ11

Answer:

Not as big as the previous asteroid that whipped out the dinosaurs

a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

To know more about isocost curve here

https://brainly.com/question/30825503

#SPJ4

Answer:

1.) Sowing

2.) Respiration

3.) Soil preparation or cultivation or ploughing

4.) Fertility

5.) 2, 4 -D

6.) winnowing threshers

7.) Surface irrigation and sprinkler irrigation

8.) Weeds

9.) Transplantation

10.) Aeration

Explanation:

1.) Seed drill sows crop seed

2.) Ploughing assist in the respiration and penetration of the roots of a growing plants

3.) Tilling the soil is breaking of the soil lumps and turning of the soil

4.) Manure and fertilizers supply nutrient to the soil for the uptake by plant in food production

5.) 2, 4 -D are a range of weedicide containing 2,4-D as the active ingredient

6.) Winnowing is the separation of grain from straw

Threshers remove seeds from husks and stalks

7.) Surface irrigation -gravity enables the flow of the water

and sprinkler irrigation- Use of preset tools for irrigation

8.) Weeds are the unwanted, in situ, growing plants close to the crops

9.) Transplantation is the method of relocating plants

10.) Excess water limits access of the roots and seeds to atmospheric oxygen

Answer:

In the case of burning wood, stored potential energy (in the form of chemical energy) in the log is released due to heating by other excited atoms. This chemical reaction is called combustion and requires oxygen. Combustion changes the potential chemical energy into kinetic energy in the form of heat

Explanation:

thank me later

Answer: Yes, on many slate-roofed homes as temperatures change, such as cooling at night or heating during the day, thermal expansion or contraction of the slates may cause movement that in turn causes snapping, popping, or cracking noises, even bangs and clanks or clicks from the roof.

Explanation:

Answer:

because of its mealting

Explanation:

hope it helps you

Conservation of momentum: the combined momentum of the car and the barrier before the collision must be the same of that after the barrier.

Let's first calculate the momentum before.

m: mass in kg; v: velocity in m/s

Initially, the two objects are separate, so we must calculate the initial momentum of both separately.

(since v = 0)

Therefore, combined momentum is 112000 kgm/s.

After the collision, the momentum must be the same, but both objects are moving at the same speed since they are stuck together. Therefore, we can combine their masses.

combinedVelocity = 5 m/s, we can solve for combinedMass by simply dividing both sides by 5.

112000/5 = 22400 = combinedMass

The combined mass is equal to the car mass plus the barrier mass. We can therefore solve for the barrier mass.

barrierMass = 22400 - 8000 = 14400 kg

The barrier's mass is 14400 kg.

Answer:-These small plants that Paheli saw are weeds and they grow from the seeds dispersed by birds when they come and sit in the garden.

Explanation: Weeds are considered to be a bane for gardeners as these rampantly grow in gardens and hijack the nutrition provided to plants and hinder the latter's growth.

Answer:

-35 \(m/s^2\)

Explanation:

Deceleration is the complete opposite of acceleration and is calculated by adding a negative sign to the formula for finding acceleration.

Since acceleration is calculated by diving the change in velocity with time, deceleration will become:

 Deceleration =   -Δv/t, where Δv = change in velocity and t = time

In this case, Δv = 70 m/s and t = 2 s, hence;

Deceleration = -70/2 = -35 \(m/s^2\)

The deceleration is 35 \(m/s^2\).

Answer:

The force is equal to the mass times acceleration:

F = m•a

F = 8•0.5

F = 4 N

Answer: A- The technology or tools available to test scientific claims. I just took this test and passed.