what are physical properties?

Answer:

Displacement = -2 units and Distance = 20 units

Explanation:

It is given that,

A man travels 9 units to the right and then 11 units to the left.

We need to find the displacement and distance traveled.

Let the left side is negative and the right side is positive.

Displacement = -11 + 9

= -2 units

Distance = 11 units + 9 units

= 20 units

Hence, the displacement and distance travelled is (-2 units) and 20 units.

Inertia is the resistance of an object to a change in its state of motion. The more mass an object has, the more inertia it has. Correct answer: B. Dump out some of the soil.

Therefore, by dumping out some of the soil from the truck, the mass of the truck is decreased, which in turn decreases its inertia.

Therefore, the correct answer is option B.

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To determine the number of half-lives that have elapsed, we need to compare the ratio of 14C to 14N atoms found in the hip bone fragment.

The ratio of 1 14C atom for every 31 14N atoms suggests that the hip bone fragment contains a smaller amount of 14C compared to the expected ratio found in a living organism. Since 14C undergoes radioactive decay with a half-life of approximately 5730 years, we can calculate the number of half-lives that have elapsed by observing how many times the ratio needs to double to reach the expected ratio.

In this case, if the expected ratio is 1:1, then the observed ratio of 1:31 would require five doublings to reach 1:1. Therefore, approximately five half-lives have elapsed since the death of the organism from which the hip bone fragment originated.

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Answer:

I hope it helped you...please mark as brainliest.....thanks!!!!!!!

Explanation:

Inches of mercury is ideal for vacuum lifting with vacuum cups, as the amount of vacuum required is rarely high. Typical vacuum handling utilizes anything between 15″Hg and 25″Hg. Therefore, “Hg is suitable as a measurement of system performance in this type of operation

The column of mercury employed in a mercury barometer, the height of which (inches of mercury) is used as a measure of atmospheric pressure.

At some point, all water vapour that is found in a vacuum system came from the atmosphere. Consider that air at 25° C and 50% relative humidity contains 12 torrs of water vapour. ... Additionally, any surface will adsorb a certain number of monolayers of water molecules.

Credits:

Vacuum Measurement: A Basic Guide - Fluid Power Journal

Sources of Water Vapor in Vacuum Systems | Normandale ...

Answer:

Is Mercury an answer on your thing?

Explanation:

Mercury has the least amount of gravity, so therefore you can jump the highest on Mercury.

Answer:

Jupiter

Explanation:

Jupiter has more than 300 time the mass as earth. so, it's gravitational pull is stronger.

Hopefully this helps

Answer:

It reveals that light is a wave

Explanation:

Diffraction is the property of a wave in which there is a bending of the wave about the corners of an obstacle or aperture into the geometrical shadow of the obstacle or aperture.

This simply implies that a wave bends or spreads out when it passes through openings. Since the light diffracts through small slits and diffraction has been shown to occur in water waves and sound waves, this property of diffraction can only be characteristic of a wave and thus, this evidence reveals that light is a wave.

Answer:

It shows that light can travel in different wavelengths.

Explanation:

Light is similar to a wave in the way that it travels in a straight line, but when it is passing through the slits, it diffracts due to this difference. Therefore, light refracts in the same way as a wave would, and it is a mode of transferring energy. The light travels in a way similar to a wave

Answer:

(a) Force and Pressure

Explanation:

Acc to the formula,

Force = Pressure/Area

Therefore it depends on force and pressure

Answer:

Is either b or d

Explanation:

A CD be a more reliable way to copy and distribute a sound recording than a vinyl record because a CD is easier to copy exactly over and over again.

CDs are digital music storage devices, which means the music is binary data encoded. It uses a 2-channel, 16-bit, 44.1 kHz configuration as the norm for CDs. A laser reads the data, and after it has been decoded, audio is played back.

A sensitive needle known as a stylus is used to read the physical record of the music that is imprinted on the vinyl disc because vinyl is an analogue storage medium. The 12-inch 33-rpm LP, 7-inch 33-rpm EP, and 7-inch 45-rpm single make up the typical vinyl album.

The diameter and playback speed are what determine a vinyl disc's storage capacity (larger discs and slower playback means more capacity). The stereo channels are divided among the groove's two sides.

Hence, option (D) is correct.

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Answer:

Explanation:

35 up 35 down cancel out.

25 forward minus 10 pulling back, so:

25-10

= 15N Right

Answer:

20N

Explanation:

newtons 3rd law every action has an equal opposite reaction

I'm not too sure

The net force acting on the wagon at a constant speed is 0.

The value of the force of friction acting on the wagon is 55 N.

The net force acting on the wagon is calculated by applying Newton's second law of motion as shown below.

F - Ff = ma

where;

At a constant speed, the acceleration of the wagon = 0

F - Ff = 0

F - Ff = F(net)

Thus, the net force is zero, when the speed of the wagon is constant.

The force friction acting on the wagon if the force on the wagon increased to 30 N is calculated as;

F - Ff = 0

( 30 N + 25 N ) - Ff = 0

Ff = 55 N

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Answer:

im saying 4. its just a guess it makes sense tho

Explanation:

sorry for getting this wrong.

Answer:

longitudinal waves

Explanation:

I got it right

Answer:

Gravitational force becomes sixteen times lesser. The strength of the gravitational force between two objects is dependent on their mass. Gravitational force will be weaker if the objects move further away from each other.

This was used to solve for the gravitational force,

G = gravitational constant

m = mass of the first object

M = mass of the second object

d = distance between the two objects

[G * (m*M) / 16d^2] = 1/16

Explanation:

TRUE - Two colliding objects will exert equal forces upon each other. If the objects have different masses, then these equal forces will produce different accelerations. ... FALSE - In any collision, the colliding objects exert equal and opposite forces upon each other as the result of the collision interaction.

Answer:

the volume increase

Explanation:

because because when the speed of the vibrations decrease the speech of the sounds become loud

When going from a 5 to a 6 on the Richter scale, there is a tenfold increase in the amplitude of seismic waves.

The Richter scale is used to determine the intensity or magnitude of an earthquake.

The scale is logarithmic, meaning that each increase of one on the scale represents a tenfold increase in seismic wave amplitude.

The amount of energy released by an earthquake is used to determine the magnitude of an earthquake. The Richter Scale ranges from 1 to 10, with each point representing a tenfold increase in energy.

Seismic waves are recorded by seismometers, and the data collected is then used to calculate the magnitude of an earthquake

When going from a 5 to a 6 on the Richter scale, the increase in amplitude of seismic waves is approximately 10 times larger. This means that the amplitude of the seismic waves at a magnitude of 6 would be about 10 times greater than the amplitude of the seismic waves at a magnitude of 5.

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The ball's centripetal acceleration is 119.2 m/s^2.

The centripetal acceleration (a) of an object moving in a circle can be calculated using the formula:

a = (v²) / r

where v is the velocity of the object and r is the radius of the circle.

In this problem, we are given the frequency (f) of the ball's motion, which is related to its velocity (v) and the radius (r) of the circle by the equation:

v = 2πrf

We are also given the length (L) of the string, which is equal to the radius (r) of the circle.

Substituting the given values into the equations, we get:

r = L = 48 cm = 0.48 m

f = 2.5 Hz

v = 2πrf = 2π(0.48 m)(2.5 Hz) = 7.54 m/s

Using the formula for centripetal acceleration, we get:

a = (v²) / r = (7.54 m/s)² / 0.48 m = 119.2 m/s²

Therefore, the ball's centripetal acceleration is 119.2 m/s².

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Answer:

6.7 x 10^8 mi/hr

Explanation:

Do the math with units ONLY

   km/s    *   miles/ km   *  s/hr   =   mi / hr    ( ...as the km and s cancel out)

                           now.... put in the numbers

     3 x 10^5   km/s   *   .62  mi/km  * 3600 s / hr  = 6.7x 10 ^8  mi/hr

Answer:

Data from a cross-sectional study or survey might need to incorporate weights or design effects in the analysis.The analysis plan should specify which variables are most

Explanation:

Explanation:

For example, scientists on a ship may examine SONAR data collected in real-time to determine the shape of the seafloor (Fig 2.7 A). ... Biologists might graph the number of box jellyfish over time and compare these data to the phases of the moon to look for patterns (Fig 2.7 B).

Answer:

Elephant and the eath because Fg is determined by Mass of an object.. So elephant has greater mass therefore, it's Fg is higher

According the universal  law of gravitation, the gravitational force is directly proportional to the mass of an object.  An elephant weighs so much than a man and thus it will experience larger gravitational force from earth.

Gravitational force is a resistive force by which an object attracts other objects towards its centre of mass. The force exerted by the object depends on the mass and the force experienced by the other object depends on its mass and distance between the two objects.

According to universal law of gravitation, the gravitational force is directly proportional to the mass of the object and distance from the ground. The expression for the law is written as:

\(\rm g = G \frac{M_{1} M_{2}}{r^{2}}\)

Where, G is the universal gravitational constant and M1 and M2 be the masses of two objects which and r be the distance between them. As per this relation gravity decreases with increase in distance and increase with an increase in mass.

Therefore, a massive body such as an elephant will experience greater gravitational force from the earth.

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Saturn is a planet in solar system. It's ring is made out of small covered ice particle. It has over 30 moons.

Answer:

all the resistors are connected in series.

Answer:

there is the answer

Explanation:

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

According to   equations of motion, we get after 8.70 seconds  she running directly east.

These are the three equations:

Given :

v₀ = 2.38 m/s

v = 0 m/s

a = 0.310 sin (-62.0°) m/s²

to find time t :

v = at + v₀

0 m/s = (0.310 sin (-62.0°) m/s²) t + (2.38 m/s)

t = 8.70 s

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Answer:

pH value is between 6.5 and 6.8

Explanation:

Explanation:

Milk fresh from the cow typically has a pH between 6.5 and 6.7. The pH of milk changes over

Answer: A. Frequency

Explanation: The frequency of light remains constant when the light ray is incident on the interface of two media. But light moves at different speeds in different media. As a result, the wavelength of light also changes at the interface. This, in turn, causes a change in direction, which is refraction.

The pH of a 0.29 M solution of a monoprotic weak acid with a Ka of 6.2×10⁻⁶ is 2.94.

To find the pH of a 0.29 M solution of a monoprotic weak acid with a Ka of 6.2×10⁻⁶, we first need to calculate the concentration of H+ ions in the solution.

Ka is the acid dissociation constant, which represents the strength of the acid. It is defined as [H+][A-]/[HA], where [H+] is the concentration of H+ ions, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the weak acid.

Since the acid is monoprotic, we can assume that all of the weak acid dissociates into H+ and A-. Therefore, we can write the equation:

Ka = [H+][A-]/[HA] = [H+]²/[HA]

Rearranging this equation, we get:

[H+] = sqrt(Ka x [HA])

Substituting the given values, we get:

[H+] = sqrt(6.2×10⁻⁶ x 0.29) = 1.15×10⁻³ M

Now that we know the concentration of H+ ions in the solution, we can calculate the pH using the formula:

pH = -log[H+]

Substituting the calculated value, we get:

pH = -log(1.15×10−3) = 2.94

Therefore, the pH of a 0.29 M solution of a monoprotic weak acid with a Ka of 6.2×10⁻⁶ is 2.94.

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