one object is traveling northeast with a momentum of 12 kg-m/s, while a second object is traveling southwest on the same path as the first object with a momentum of 4 kg-m/s. when the two objects collide, they stick together. what is the momentum after their collision?(1 point)

Answer: 20

Explanation: Mass number is the number of neutrons plus the number of protons. 8 + 12 gives 20.

Mass number

Mass number is 20

Nuclei of H1 and nuclei of H2 are the only stable nuclei oh hydrogen.

Hydrogen is the first and most basic of all elements in the universe.

Radiation is spontaneously emitted from nuclei of H3 because this isotope of hydrogen is highly radioactive as compared to other isotopes of hydrogen namely; nuclei of H1 and nuclei of H2.

The nucleus of H3 also called as tritium contains one proton and two neutrons, while the nucleus of the common isotope H-1 (protium) contains one proton and zero neutrons, and the nucleus of H-2 (deuterium) contains one proton and one neutron.

Therefore H1 and H2 have much stable nucleus as compared to nuclei of H3.

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Answer: Ball #1

Explanation:

Since the platform is more inclined, it will allow the ball to roll down faster.

Answer:

b

Explanation:

i know

Answer:

b one will not accelerate

The force required for the 14 kg flowerpot to start sliding, given that the coefficient of static friction is 0.64, is 87.8 N

The coefficient of friction is related to force of friction according to the following formula:

Frictional force (N) = coefficient of friction (μ) × normal reaction (N)

F = μN

With the above formula, we can obtain the force required to slide the flowerpot as follow:

F = μN

F = 0.64 × 137.2

F = 87.8 N

Thus, we can conclude that the force required is 87.8 N

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Answer:

srarch from website please

Answer:

hey

Explanation:

hey

Answer:

vega the first one

pb

p

Explanation:

Answer:

Explanation:

in a room with no windows that way it doesnt shatter. Usually a closet... or if you have a basement.sorry but that applies to all them

Explanation:

for the tornadoes

● go to the basement on the lowest floor.

● for heavy protection get under something heavy for example a heavy table.

hail storm

●go and run for a safe place closer _ by like for example garage,under a shed or service station awning.

● do not leave the vehicle until stops hailing.

earthquake

●The best move is getting under a strong table

or a desk

● hold on the shelter if not hold on your neck and head with both arms and hands.

The tangential velocity of an Earth satellite is its velocity perpendicular to the radius vector connecting the satellite to the center of the Earth. In other words, it is the speed at which the satellite moves along its orbital path.

The tangential velocity determines the satellite's ability to stay in orbit and counteract the gravitational pull of the Earth. The magnitude of the tangential velocity depends on the altitude of the satellite and the gravitational force acting upon it.

To remain in a stable orbit, the tangential velocity must be balanced with the gravitational force to maintain a circular or elliptical path around the Earth.

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Answer: AERODYNAMIC BENEFITS

Explanation: The reason why a bicycle fairing will be helpful on a hand powered vehicle is because the fairing design is very important that is a long and also sealed fairing provides the best compensation for the added weight. However,for road riding,a tailbox may actually will not be able to repay the weight penalty.

This is kinda confusing. I wish u just to a screenshot of the problem but here goes...

Forest at highest latitudes- Hardwood trees/deer, squirrel, foxes

Praries/temperate climate- Mostly small mammals/scrubs/steppes

High humidity/rainfall near equator- Abundant thick vegatation/manny species

No trees/ polar bears/ mosses- 25cm rain/few animals

Answer:

"the plants had already started growing."

Explanation:

I think this is the answer because the definition of a dependent variable is the variable that is being affected by the change. Since the plants had already started growing BECAUSE of "They ran out of the farmer's compost, so

some of the plants received that compost

when the seeds were planted and other

plants got hardware store compost after

the plants had already started growing."

Sorry if I am wrong, I am just a 4th grader, pls don't hate on me, I am just trying to help :)

Answer:

It's compost

Explanation:

In case you needed the dependent variable, its the amount of plant growth

Answer: Air

Explanation:

Roffns dn b bdd

Answer:

D. A followed by B

Explanation:

You can see at section A solid Ice at temperature 0°C gets heated up for and all the energy generated from heating up the ice is used to break the bonds which holds the ice together as a solid .

while at Section B the liquid water at 100°C changes to vapor because the heat energy applied here breaks intermolecular bonds c.

The section where A is followed by C of the heating curve illustrate this process. The correct option is D.

The heating curve represents the association between the supply temperature of the heating system and the external air temperature.

As can be seen in section A reliable Ice at 0°C is heated, and all of the energy generated by heating the ice is used to shatter the bonds that hold the ice together as a solid.

While in Section B, liquid water at 100°C transforms to vapor because the heat energy applied here shatters the intermolecular bonds c.

Thus, the correct option is D.

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The correct orbital position of the moon can be identified as position H, which indicates that the moon is in its third quarter phase.

This is because when the moon is in this phase, it rises around midnight and is visible until the morning. Therefore, a couple of hours before sunrise, the moon would be near the western horizon, just as shown in the view from earth window.

Position A represents the new moon phase, position B corresponds to the first quarter of the moon, and position D represents the full moon phase. Overall, the position of the moon in its orbital cycle determines its phase and its visibility from Earth at different times of the day.

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Answer:

125 joules

Explanation:

The velocity of the runner having a mass of 75 kg will be 9.93 m/s.

The energy of the body by virtue of its motion is called its kinetic energy.

Given is velocity of a runner who has a mass of 75 kg and 3,700 Joules of energy.

The kinetic energy of the body is given by the following formula -

KE = 1/2 mv².

Substituting the values -

3700 = 1/2 x 75 x v²

7400 = 75 x v²

v² = 7400/75

v² = 98.66

v = 9.93 m/s

Therefore, the velocity of the runner having a mass of 75 kg will be 9.93 m/s.

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The digital signal can always be always be heard even when interference is high. Option D

A radio signal makes use of the radio waves. The radio waves are long wavelength electromagnetic waves which are able to travel across a long distance. The signal can be transmitted in both analogue and digital formats.

However, the digital signal seems to be free from certain interferences that are caused by the scattering of the waves across distances. This could diminish the quality of sound that is heard.

Thus, the digital signal can always be always be heard even when interference is high.

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The mass of an object broken into parts can be determined by finding the mass of the parts, and then add those masses together.

To total mass of an object broken into parts can be determined by adding the mass of different parts together.

\(M_t = m_1 + m_2 +\ ---\)

where;

Thus, we can conclude that the mass of an object broken into parts can be determined by finding the mass of the parts, and then add those masses together.

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Answer:

Inside a femur bone found in the woods,

saliva of gum

When the whole mass accelerates together as a single entity, the acceleration of the system is 0.62 m/s²

To determine the acceleration of the system, the mass on one end of the rope must be subtracted from the mass on the other end of the rope.

The mass of each child is 30 kg. The number of children is 13.

Therefore, 30 x 13 = 390 kg is the total mass of the children.

The mass of each parent is 60 kg. There are five parents.

So the total mass of the parents is 5 x 60 = 300 kg.

Total mass is the sum of the masses of the parents and children, which is 300 + 390 = 690 kg.

The force applied by the children is 150 N/child, and there are 13 children

So the total force applied by the children is 150 x 13 = 1950 N.

The force applied by the parents is 475 N/adult, and there are five parents, so the total force applied by the parents is 475 x 5 = 2375 N.

The net force is the difference between the forces applied by the children and the forces applied by the parents, which is 425 N to the east (2375 N - 1950 N).

Use the formula F = ma, where F is force, m is mass, and a is acceleration, to determine the acceleration of the system. The formula should be rearranged to solve for acceleration. a = F/m

Substitute the values into the formula:

a = 425 N / 690 kg

acceleration:a = 0.62 m/s²

Therefore, the acceleration of the system is 0.62 m/s².

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Answer:

Lateral Inversion

Explanation:

lateral inversion simply means the change around of the image of an object from side to side

The image of an object formed by a plane mirror is laterally inverted.

A structural deficit is a budgetary deficit that results from a fundamental mismatch between a government's expenses and its revenues in the long term. A structural deficit is distinguished from the cyclical deficit, which arises from fluctuations in economic growth.

The structural deficit acts as an automatic stabilizer and increases during recessions. The automatic stabilizer refers to any action or mechanism that assists to reduce the swings in an economy without any intervention from policymakers. One instance of an automatic stabilizer is unemployment compensation. This is because, in an economic downturn, unemployment compensation is increased automatically, which, in turn, improves consumer spending. Structural deficits occur when government spending exceeds revenue collections, which is frequently the result of increased spending or decreased income. In certain cases, the structural deficit is the consequence of a tax system that does not generate sufficient revenue to cover government expenditures. A structural deficit remains the same at full employment and is not the same as a cyclical deficit.

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The comparison among gamma rays to special waves on the EM spectrum. Gamma rays are the most energetic form of electromagnetic radiation, with a completely excessive frequency and quick wavelength.

they can penetrate through thick layers of material and may be dangerous to dwelling organisms at high doses.

One-of-a-kind types of waves on the EM spectrum have lower frequencies and longer wavelengths and are usually much less lively than gamma rays.

Gamma rays are a sort of electromagnetic radiation that has very satisfactory energy and the shortest wavelength inside the electromagnetic spectrum. they're produced with the aid of the manner of the decay of radioactive atoms and by excessive-energy methods which consist of supernova explosions, black holes, and gamma-ray bursts.

Gamma rays have many uses in technology and medication, consisting of in radiation remedy for most cancers remedy, sterilization of medical tools and food, and in nuclear remedy imaging. but, exposure to gamma rays may be dangerous to reside organisms and might cause harm to cells and DNA. Gamma rays are tough to discover and require a specialized system that includes gamma-ray telescopes, scintillation detectors, and Geiger counters. they're extensively utilized in the test of the universe and in astrophysics to take a look at the homes of stars, galaxies, and black holes.

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complete query:-

what is the comparsion among gamma rays to other waves on the EM spectrum?

Answer:

9.45 m/s

Explanation:

Answer:

It is not still true that the average velocity of the particle is equal to half the sum of the initial and final velocities when the acceleration of the particle is not constant

Explanation:

The motion of a particle under constant acceleration, 'a', is be given by the following kinematic equations;

v² = u² + 2·a·s

v = u + a·t

Where;

v = The final velocity of the particle

u = The initial velocity of the particle

a = The acceleration of the particle

s = The distance through which the particle travels

t = The time of motion of the particle

By simplifying the above equation, we have;

v² - u² = 2·a·s

(v² - u²)/(2·a) = s

(v - u) × (v + u)/(2 × a) = s

((v - u)/a) × ((v + u)/2) = s

From v = u + a·t, we have;

t = (v - u)/a

∴ ((v - u)/a) × ((v + u)/2) = t × ((v + u)/2) = s

∴ ((v + u)/2) = s/t

The average velocity = (Total distance traveled by the particle) ÷ (The time of travel of the particle)

∴ The average velocity = s/t = ((v + u)/2) = Half the sum of the initial and final velocity

However, it is not still true that the average velocity of the particle is equal to half the sum of the initial and final velocities when the acceleration of the particle, 'a', is not constant, as the velocity time graph is no longer a straight line graph and the distance traveled by the particle, 's', which is the area under the velocity time graph, 'A', (given by the sum of area of the triangle and the rectangle given by the area under straight line graph for constant velocity) cannot be given directly by the product of the time and the average velocity.

Answer: 490N

Explanation:

Newton is the unit for force. Force = mass x acceleration

F=N m=50kg a=9.8 (earth's acceleration of gravity)

F=50X9.8

F≈490N

a)The electric field is the strongest in the region of x=2m to x= 5m as the equipotential surfaces are most closely spaced here. b) the Direction of the field is the -ve x-axis and c) the magnitude of the electric field = 10V/m

a)The equipotential surfaces are where the electric potentials are constant or the same at all points on the surface and the work done by an electric field in moving a charge along an equipotential surface is zero. In the figure, equipotential surfaces are most closely spaced along the x-axis between x=2 and x=5. The electric field is very strong in that region as the rate of change of potentials is higher and electric field E = -dV/dr

(b) The potential decreases in the direction of the electric field because of the negative sign in the formula E=-dV/dr. E is from higher to lower levels of V. For the region mentioned previously 2 m  ≤ x  ≤ 5m, the direction of the electric field is in the negative x direction.

(c) The drop in potential in this region is from 40V to 10V and dr = (5-2)  = 3. Thus E = -dV/dr = (40-10)/3 = -10V/m. The magnitude of the field  in this region is 10V/m

The question is probably incomplete with a missing figure and the full question shows some equipotentials in the plane. (a) in what region is the electric field strongest? what are (b) the direction and (c) the magnitude of the field in this region? with the figure

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Pascals = Atmospheres x 101,325 formula is used to convert pressure atm to pascal.

Atmosphere (atm) and Pascal (Pa) are two different units used to measure pressure. One atmosphere is equal to 101,325 Pascals. To convert atmospheric pressure to Pascals, you can use the following formula:

Pascals = Atmospheres x 101,325

For example, to convert 2.5 atmospheres to Pascals, you would use the following calculation:

Pascals = 2.5 x 101,325 = 253,312.5

Therefore, 2.5 atmospheres is equal to 253,312.5 Pascals.

It's important to note that Pascal is a unit of pressure in the International System of Units (SI), which is widely used in scientific and engineering applications. Atmospheric pressure, on the other hand, is often used in weather reports and everyday discussions of pressure.

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