will a negative charge, initially at rest, move toward higher or lower potential? explain why.

Answer:

the stars which are red in color are cool.

Explanation:

The stars which has reddish color are cool in nature while those stars which has white and blue in color are very hot in nature. The stars change its color when they becomes hotter , first the star color reddish when they are cool but with increasing temperature it changes the color from reddish to orange then yellow. After yellow it turns green and finally get blue color when the stars are very very hot.

Answer: 12

Explanation:

The resultant vector is  12 unit.

When two vectors point in the same direction, their sum is equal to the total of their respective magnitudes pointing in the same direction.

When two vectors are pointed in opposite directions, the resultant vector is pointed in the direction of the larger vector and is equal to the difference between their magnitudes.

Here, one vector of 15 unit is acting to the left and another vector of 3 unit acting rightwards. As they are acting in opposite direction, vector summation of two vector will be equal to the value of subs traction of their magnitude.

So, Resultant vector= 15 unit + (-3 unit)

= 15 unit - 3 unit

= 12 unit.

Hence, the resultant vector will be 12 unit.

Learn more about vector here:

https://brainly.com/question/13322477

#SPJ1

By using uniform motion, the high up the slope will it strike is 730.62 m.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

θ = 70⁰

vi = 200 m/s

x = 300 m

Find the initial velocity in x and y axis

vx = vi cosθ = 68.40 m/s

vy = vi sinθ = 187.94 m/s

Find the time taken to reach 300 m

vx = x / t

68.4 = 300 / t

t = 4.39 second

Find the time taken to reach maximum height

vt = vo + a . t

0 = vy - g . t

vy = gt

187.94 = 9.8 . t

t = 19.18 second

The motion of projectile is raising to maximum height, hence

s = vo . t + 1/2 . a . t²

h = vy . t - 1/2 . g . t²

h = 187.94 . 4.39 - 1/2 . 9.8 . 4.39²

h = 730.62 m

Find more on uniform motion at: https://brainly.com/question/28040370

#SPJ4

Answer:Carbon

Explanation:

Carbon is CO2

Explanation:

the velocity of sound in air is 330m/s

and v=fh, where h is wavelength f is frequency,

h=v/f.......(1)

longer wavelength

h=330/20,h=16.5m

shorter wavelength

h=330/20000,h=1.65x10-²m

The lesser frequency was used for finding the longer wavelength since wavelength is inversely proportional to frequency,

thus an increase in frequency brings a decrease in wavelength.

and shorter wavelengths are more high and intense

hope this helps

Complete question is;

An ideal pendulum is often discussed when studying simple harmonic motion.

What are the conditions needed for an ideal pendulum? Check all that apply.

1) Gravitational force acts to pull the pendulum’s mass down.

2) The mass of the rod of the pendulum is evenly distributed along the rod.

3) The pivot on which the pendulum swings is frictionless.

4) The pendulum swings through its equilibrium position as a result of inertia.

5) Tension acts downward on the pendulum’s mass

Answer:

Conditions 2,3 & 4 are the ones that apply

Explanation:

The conditions required for an ideal pendulum are;

- The mass of the rod of the pendulum has to be evenly distributed along the rod.

- Ensure that the pivot on which the pendulum is swinging is frictionless

-The pendulum has to swing through it's equilibrium position as a result of inertia.

Thus,the correct options are 2, 3, 4.

Answer:

Gravitational force acts to pull the pendulum’s mass down.

The pivot on which the pendulum swings is frictionless.

The pendulum swings through its equilibrium position as a result of inertia.

Explanation:

Just took the test

Fringe Width is the distance between two maxima of the next order on one side of the central maxima.

The distance between two fringes can be calculated by β=λDd where β represents fringe width, λ represents wavelength, D represents the distance between slit and screen, and represents the distance between two slits. The fringe width depends on the wavelength of light, the distance between the slits, and slit separation.

The bright (constructive interference) fringes are at maximum intensity and the dark (destructive interference) fringes are at minimum intensity. Fringe is the alternating light and dark band that forms due to interference. Fringe width is the distance between two successive bright or dark fringes.

learn more about fringe width at -

brainly.com/question/14026470

Answer:

because liquid and solid states of water possesses intermolecular force of attraction which held the molecules of water in fixed

Answer:

The right solution is "2.5 m/s²". A further explanation is given below.

Explanation:

The given values are:

Initial velocity,

= 20 m/s

Final velocity,

= 0 m/s

Time,

= 8 s

As we know,

⇒  \(Acceleration=\frac{Final \ velocity-Initial \ velocity}{2}\)

On substituting the values, we get

⇒                       \(=\frac{0-20}{8}\)

⇒                       \(=\frac{-20}{8}\)

⇒                       \(=-2.5 \ m/s^2\)

Specific heat is defined as the amount of heat energy required to raise the temperature of one unit mass of a substance by one degree Celsius.

To calculate the heat required to raise the temperature of a substance, you need to know the specific heat, which is a property of the material. The specific heat is the amount of heat needed to raise the temperature of one unit mass of the substance by one degree Celsius. In addition to the specific heat, you would also need to know the mass of the substance and the temperature change you wish to achieve. The heat required can be calculated using the formula:
Q = mcΔT
Where:
- Q represents the heat required (measured in joules or calories),
- m is the mass of the substance (measured in grams or kilograms),
- c is the specific heat of the substance (measured in joules per gram per degree Celsius or calories per gram per degree Celsius), and
- ΔT is the temperature change (measured in degrees Celsius).
By knowing these variables, you can easily calculate the heat needed to raise the temperature of a substance to the desired level.

Learn more about energy here: https://brainly.com/question/1932868

#SPJ11

Answer:

P=I²R

Explanation:

P=2*10^-3 square times 10

4 times ten raise to power minus 5

Answer:

The leverage or mechanical advantage of pulleys is less obvious, but you can "gang" multiple pulleys together into two sets (blocks) and run the ropes back and forth between the two sets to increase the number of lengths of rope running between them. One end of the rope is connected (fixed) to one of the blocks, and you get to pull on the other end after it is passed back and forth between the blocks of pulleys. This is sometimes called a block and tackle arrangement. With a hook on each side of the block set, you can move a heavy load much like levers do, by multiplying the force. You have to pull more rope just like you have to move a lever more on one side of the fulcrum as compared to the other. When you get all the rope pulled out that you can, you can not move the load anymore because you have become "two-blocked" which means the two blocks are together. Credits to: Moin Khan

Answer:  Problem 03.043 - Velocity-time graph The figure shows a plot of vx(for a car traveling in a straight line. Vx (m/s) 20 | 15 20 7(s) What is aav.x between t = 9.00 s and t = 110 s? 7 m/s2 What is Vav,x for the time interval from t= 9.00 s to r= 110 s? What is Vav.x for the interval t = 0 to t= 15.0 s? m/s What is the increase in the car's speed between 10.0 s and 15.0 s? m/s How far does the car travel from time t = 100 s to t = 170 s?

The answer is 03.043 but i dont know maybe my brain is incorrect but I got 03.043. :| hope it helped if its correct.

Explanation: Well, I havent done math in a while bc im not in school anymore so i forgot all that stuff :|

The actual μ₀ value should be higher than the measured μ₀ value and doubling the length of the rod will not affect the μ₀ value.

Detailed explanation of the answer is given below:

1. If we consider the effect of repulsive forces causing the conduction electrons in each rod to move as far away from the other rod as possible, the actual μ₀ value should be higher than the measured μ₀ value.

The reason for this is that the effective distance between the centers of the rods would be slightly larger due to the repulsion, causing the denominator in the equation to increase, and thus requiring a higher μ₀ value to maintain the equality.

2. If the length of Rod AB is doubled while the length of Rod CD remains the same, the result will not change.

In the given equation, 7*10^-7 = μ0*L/2*pi*d*g, the length of the rods does not directly affect μ₀. The equation only depends on the distance (d) between the rods and the gravitational constant (g), so doubling the length of Rod AB will not affect the μ0 value.

Learn more about gravitational constant:

https://brainly.com/question/27943482

#SPJ11

The amount of work done  by the applied force is 500 J.

The amount of work done  by the applied force is equal to the product of the applied force and the displacement of the object.

Mathematically, the formula for work done by an applied force is given as;

W = F d

where;

The amount of work done  by the applied force is calculated as;

W = 50 N  x 10 m

W = 500 J

Learn more about work done here: https://brainly.com/question/8119756

#SPJ1

Answer:

When we burn wood we are releasing solar energy, in the form of heat, that has been stored in the wood as chemical energy. The process of photosynthesis converted solar energy, water and carbon dioxide into oxygen and the organic molecules that form the wood, half the weight of which is carbon.

Explanation:

The statement is true. Solar radiation, also referred to as ultraviolet or shortwave radiation, is emitted by the Sun. Longwave or infrared radiation is emitted by the Earth.

Because they are cooler than the surface of the sun, the earth and its atmosphere emit infrared radiation with longer wavelengths than solar radiation. The 3 - 100 m range contains the majority of the energy of the infrared radiation that the earth and its atmosphere emit. Infrared is the thermal emission (or heat) from our planet that earth scientists study. Some of the energy from incident solar radiation that strikes Earth is absorbed by the atmosphere and the surface, warming the planet. Infrared radiation, which is emitted by the Earth, is what causes this heat.

Learn more about radiation here-

https://brainly.com/question/13934832

#SPJ4

Answer:

it is less dense than the liquid it is placed in.  Explanation:

Answer:

The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.

A solid object will float on a liquid if the solid is less dense than the liquid.

We don’t often think about this, but ice floats on liquid water, because ice is less dense than water. It is one of the few substances whose solid is less dense than its liquid. If it weren’t, ice would drop to the bottom of the oceans and lakes, and these bodies of water would remain frozen year round. Life would almost certainly not have evolved on Earth if this were the case.

Explanation:

The factor that determines radiation injury EXCEPT one is c. patient gender.

Radiation injury occurs when a person is exposed to high levels of ionizing radiation. The size of the irradiated area, the amount of radiation, and the dose rate are all factors that determine radiation injury, but patient gender is not. While patient gender may play a role in other aspects of healthcare, it does not determine the amount of radiation injury a person may experience. Therefore, the correct answer is c. Patient gender.

Learn more about radiation here https://brainly.com/question/28268855

#SPJ11

The temperature difference across the properly operating electric furnace, which is using a 10 kW electric heater and moving 900 cfm of air, depends on various factors such as the specific heat capacity of the air and the efficiency of the furnace. Without these additional details, it is not possible to provide a direct numerical answer.

To determine the temperature difference, we need to consider the heat transfer and the airflow rate. The temperature difference can be calculated using the heat transfer equation:

Temperature difference (in °C) = Power (in watts) / (Airflow rate (in m³/s) × Density (in kg/m³) × Specific heat capacity (in J/(kg·K)))

Given that the electric heater is using a 10 kW (10,000 W) electric heater and moving 900 cfm of air, we need additional information to proceed with the calculation. Specifically, we need the specific heat capacity of the air and the density of the air under the given conditions.

The specific heat capacity of air is approximately 1.006 J/(g·K) under normal atmospheric conditions. The density of air at normal atmospheric conditions is approximately 1.225 kg/m³.

Once these values are known, the calculation can be performed to determine the temperature difference .

Without the specific heat capacity of the air and the density of the air under the given conditions, it is not possible to provide a direct numerical answer for the temperature difference across the electric furnace. Additional information and calculations are required to obtain an accurate result.

To know more about temperature visit ,

https://brainly.com/question/27944554

#SPJ11

Answer:

v ≈ 4.47

Explanation:

The Formula needed = KE = \(\frac{1}{2}\) m v²

Substitute with numbers known:

2000J = \(\frac{1}{2}\) × 200kg × v²

Simplify:

÷100       ÷100      (Divide by 100 on both sides)

2000J = 100 × v²

\(\frac{2000J}{100}\) =  v²

20 = v²

√         √             (Square root on both sides)

√20 = √v²

4.472135955 = v (Round to whatever the question asks)

v ≈ 4.47       (I rounded to 2 decimal places or 3 significant figures, as that is what it usually is)

Answer:

uniform acceleration

Explanation:

The definition for uniform acceleration is:

if an object travels in  a straight line and its velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration is said to be uniform.

Hope this helps.

Good Luck

Answer:

Uniform Accleration.

Is the answer.

The urban legend of the car thief is an example of A Cautionary Tale.

A cautionary tale makes reference to a given tale aimed at the warning the person of some type of danger, which is generally used to alert about a given behavior and may be very useful to modify a behavior pattern in children.

Therefore, with this data, we can see that A cautionary tale is based on warning and can help to modify certain behavior in c children depending on the ability to create conscious.

Learn more about the cautionary tale here:

https://brainly.com/question/31241692

#SPJ1

The biomass energy can use improve water quality in soil erosion and sedimentation are decreased during biomass crop growth. The correct option is C.

Biomass energy is obtained by the processing of the dead plants and animal or vegetable, cow dung or wood.

The biomass energy obtained by these bio things, it is enriched with the nutrients required by the new crop plants to grow effectively.

The biomass energy provides good water quality by soil erosion and sedimentation.

Thus, The correct option is C.

Learn more about biomass energy.

https://brainly.com/question/2292559

#SPJ1

Answer:

https://stats.stackexchange.com/questions/454120/how-can-i-calculate-uncertainty-of-the-mean-of-a-set-of-samples-with-different-u

Explanation:

Answer:

False

Explanation:

Just took the test

False, because hypochondriacs think they have a significant, undetected medical ailment even when testing reveal they are healthy.

A hypochondriac is someone who, despite diagnostic testing showing they have no health issues, lives in constant anxiety that they have a terrible, undetected medical illness. They are obsessed with the concept that they suffer from a major illness that has gone untreated.

In adults, hypochondriasis often begins to manifest. Among the symptoms are a persistent, strong anxiety of developing a major illness and concern that seemingly little symptoms portend a larger problem. A patient may change physicians or see them regularly.

Medication and counselling could be helpful.

Learn more about hypochondriac, here:

https://brainly.com/question/11046677

#SPJ5

air and empty space.