if u can guess all of these you will i mean will get brain
no rude answers stuff or report

Answer:

1. The magnetic pole is the region at each end of a magnet where the external magnetic field is the strongest.

2. magnetic line of force - a line of force in a magnetic field. field line, line of force - an imaginary line in a field of force; direction of the line at any point in the direction of the force

Explanation:

Answer:

yes

Explanation:

weight depends on the strength of gravity, so on a different planet, or on the moon for example, things would have a different weight but have the same mass.

Answer:

22.5kg

Explanation:

Since we not told wat to find, we can as well find the mass of the beaver.

Kinetic energy formula is expressed as;

KE = 1/2mv²

m is the mass

v is the speed

Given

KE = 45Joules

v = 2.0m/s

Substitute into the formula and get the mass

45 = 1/2m(2)²

45 = 2m

m =45/2

m = 22.5kg

Hence the mass of the beaver is 22.5kg

Answer:

y e s

Explanation:

Answer:

See below

Explanation:

A ) distance = 1/2 a t^2    <==== when starting from rest

          20    = 1/2 (a) (3.5^2)      shows a = 3.27 m/s^2

B)   Velocity(at 3.5 s)   =   a t   = 3.27 * 3.5 = 11.42 m/s

C)    3.5 seconds      +    80 m / 11.42 m/s = 10.5 s

The overall change in frequency detected by the person on the platform will be - 77.8796 Hz at constant speed 37.7 m/s

As the train passes the passenger platform, a person standing on the platform will hear the train horn at a different frequency than the horn's characteristic frequency of 350 Hz. This is due to the Doppler effect, which causes the perceived frequency of a sound wave to change when the source or observer is moving.

The overall change in frequency detected by a person on the platform as the train moves from approaching to receding can be calculated using the Doppler effect formula:

f' = f(v ± vr) / (v ± vs)

where f is the frequency of the source (in this case, the train horn), v is the speed of sound, vr is the speed of the receiver (i.e. the person on the platform), and vs is the speed of the source (i.e. the train). The sign of the frequency change depends on whether the source is approaching (positive sign) or receding (negative sign) from the observer.

In this case, the train is moving at a constant speed of 37.7 m/s, which is much greater than the speed of sound (approximately 343 m/s). Since the train is approaching the platform, the sign of the frequency change will be positive. Therefore, the overall change in frequency detected by a person on the platform can be calculated as follows:

f' = 350 Hz((343 m/s + 37.7 m/s) / 343 m/s) = 427.8796 Hz

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Answer:

This question requires gravitational acceleration,t=（2h/g）^ 1/2,Level the initial speed is 15/t.

Answer:

ikr same.....lol......

You can disregard the weight of the rope and assume that the rope does not stretch. Use 9.81m/s2 as the gravitational acceleration value.

The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force acting on an object determines the direction of its acceleration. According to Newton's Second Law, an object's acceleration is the result of two factors working together: the object's mass, which varies depending on the materials it is made of, and the net balance of all external forces acting on it. The magnitude of an object's acceleration is inversely proportional to the object's mass.

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Answer:

15 kg ball

Explanation:

Answer:derp

Explanation:

Answer:

It gets hotter and hotter and it would start to be a liquid lava

Explanation:

We have that Resistance is equal to the potential difference divided by

Current

The Name of the Quantity is Current

From the question we are told

Resistance is equal to the potential difference divided by what? Give the name, not the unit of  measurement

Generally the equation for Resistance  is mathematically given as

\(R=\frac{V}{I}\)

Where

I=Current

V=Voltage

R=Resistance

Therefore

Resistance is equal to the potential difference divided by

Current

The Name of the Quantity is Current

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Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

volume = final volume of water - initial volume of water

volume = 13.5 - 10.5 = 3 mL

From the question we have

\(density = \frac{8.1}{3} \\ \)

We have the final answer as

Hope this helps you

Answer:

A machine is a mechanical structure that uses power to apply forces and control movement to perform an intended action.

Explanation:

Example: Elevator

AC Adapters the four-letter type of adapter that’s used with electrical devices that require power but do not contain internal components to derive the required voltage and power from mains power.

Mobile phones, laptop computers, and external hard drives are just a few of the everyday electronic gadgets that can be powered or recharged using alternating current (AC) adapters. An AC adapter converts AC power from an outlet into the voltage or kind of power that is required by an electronic device.

An AC adapter is an external power source that transforms the direct current (DC) required by an electronic device from the alternating current (AC) found in a wall outlet. It is an AC/DC converter as a result. It's also accurate to call it a charger when it powers a battery-operated item.

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The percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

For finding the percentage of adhesions that are higher than 0.40, need to calculate the area under the normal distribution curve to the right of 0.40. First, need to standardize the value of 0.40 using the Z-score formula:

Z = (X - μ) / σ

Where X is the value (0.40), μ is the mean (0.37), and σ is the standard deviation (0.04).

Z = (0.40 - 0.37) / 0.04 = 0.03 / 0.04 = 0.75

Next, look up the Z-score of 0.75 in the standard normal distribution table for finding the corresponding cumulative probability. The Z-table tells that the cumulative probability to the left of 0.75 is approximately 0.7734.

Since want the percentage to the right of 0.40, subtract the cumulative probability from 1:

1 - 0.7734 = 0.2266

Therefore, the percentage of adhesions measured in use that are higher than 0.40 is approximately 22.66%.

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Answer:

The water is stored in ice sheets and as snow

Explanation:

Temperature reduces with an increase in altitudes. The standard laps rate is 6.5°C per 1,000 m gained in elevation

At very high elevations, therefore,  the air is usually very cold such that when an elevation of 4,500 meters is reached at the equator, it is possible to observe snowfall and the water remain temporarily stored on the surface of the mountain as ice and snow

The density of mercury is 13,600 kg/m³.

The density of a substance is the ratio between the mass of a substance to the volume of the substance. The specific gravity of a substance or relative density of a substance is the ratio between the density of a substance to the density of water.

SG of a substance = ρ of a substance ÷ ρ water

The specific gravity of a substance is also the ratio of the mass of a substance to the mass of water. The volume of a substance is equal to the volume of water.

SG mercury = ρ mercury ÷ ρ water

13.6 = ρ mercury ÷ 1,000

ρ mercury = 13.6 × 1,000

ρ mercury = 13.600 kg/m³

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Answer:

D. Tidal energy is replaced naturally by the Moon's gravity.

Explanation:

The reason tidal energy is considered a renewable energy resource is that Tidal energy is replaced naturally by the Moon's gravity. The Moon's gravity creates bulges on the side of Earth that is closest and farthest from the Moon. These bulges also pull water causing high tides in those areas. As the Earth rotates these areas experience low tide while the areas that had low tide now experience high tide. This constant shift creates tidal energy every day, which is replenished naturally.

Answer:

The answer is C. Series.

According to Kepler's first law of planetary motion, planets revolve around the sun such that the sun is always at one of its foci. This law is also known as the law of orbits.

According to Kepler's Second Law of planetary motion, a planet will cover equal amounts of area in an equal period of time if a line is drawn from the sun to the planet. This implies that the planet moves more slowly away from the sun and faster towards it.

According to Kepler's third Law of Planetary Motion, the squares of the orbital periods of the planets are directly proportional to the cubes of their semi-major axes.

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The demand for a necessity such as electricity tends to be inelastic. Here's why:Inelastic demand is when changes in price don't affect the quantity demanded as much.

Necessities such as food, water, and electricity often have an inelastic demand, meaning that when the price of the product increases, the quantity demanded does not decrease as much.Explanation:For example, if the cost of electricity increased by 10%, a household might not be able to decrease its use of electricity as much, such as by 10%. The amount of electricity that a household uses might not be affected by price changes because it's a necessity.A vertical demand curve implies that a change in price results in no change in quantity demanded.

Unit elastic refers to a change in price that results in a proportional change in quantity demanded.D elastic refers to the degree of price sensitivity. Demand is said to be elastic when a price change causes a substantial change in demand.

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The speed of the moving train is approximately 33.5 m/s.

The beat frequency is given by the difference in frequency between the two horns, which is equal to the Doppler shift in frequency due to the motion of the moving train. Using the formula for the Doppler effect, we can solve for the speed of the train:

\(f_b = f_s\dfrac{(v + v_o)}{(v + v_s)}\)

where \(f_b\) is the beat frequency, \(f_s\) is the horn frequency, v is the speed of sound, \(v_o\) is the observer's speed, and \(v_s\) is the speed of the source.

We know that \(f_s\) = 410 Hz and \(f_b\) = 35 Hz. The speed of sound in air at standard temperature and pressure is approximately 343 m/s. Since the observer is stationary, \(v_o\) = 0.

Solving for \(v_s\), we get:

\(v_s = \dfrac{(f_s + f_b)}{f_s - 1} \times v\)

\(v_s\) = ((410 Hz + 35 Hz) / 410 Hz - 1) * 343 m/s

\(v_s\) = 33.5 m/s

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Electric charges in motion are the sources of magnetic forces.

Magnetic forces are a result of the interaction between a moving electric charge and a magnetic field. This interaction is described by Maxwell's equations and the Lorentz force law.

When an electric charge is in motion, it creates a magnetic field. The strength of the magnetic field depends on the speed and direction of the moving charge. Conversely, when a charged particle is placed in a magnetic field, it experiences a force that can cause it to move in a certain direction. This interaction is the basis of many technological applications, such as motors, generators, and MRI machines.

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The density of a cube that has a mass of 12. 6 and a measured  length of  4.1 cm is 0.18 kg/cm³

Density=mass/volume

mass=12.6

volume=68.9

density=12.6/68.9

density=0.18 kg/cm³

Density is defined as a material substance's mass per unit volume. Density is described by the equation d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimeter is the unit of measurement for density. For instance, compared to Earth's density of 5.51 grams, water has a density of 1 grams per cubic centimeter . Another way to express density is in kilograms per cubic meter (in meter-kilogram-second or SI units), It is easy to determine the relationship between mass and volume using density. For instance, the formula for determining a body's mass is M = Vd, while the formula for determining a body's volume is V = M/d.

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Answer:

Other movements are involuntary meaning they are not under conscious control such as the contraction of your pupil in bright light muscle tissue is classified into three types according to structure and function skeletal cardiac and smooth

Answer:

C

Explanation:

During respiration, oxygen diffuses into the lung (carbon dioxide diffuses out), gets into the blood, and is transported around the body. The hemoglobin of the blood distributes the oxygen to the various cells and carbon dioxide from these cells diffuses into the blood. The blood travels back to the lung where the carbon dioxide is exchanged for oxygen once again. The carbon dioxide is eventually exhaled out of the nose.

The correct option is C.