Write the following as powers of ten with one figure before the decimal point:

a 100000
b 3500
c 428000000
d 504
e 27056​

Answer:

5

Explanation:

melsun slemalawkew melsun asawkecn

Answer:

given us,

initial velocity (u)= 45m/s

time(t)= 1 min

final velocity (v)=?

here,

average acceleration = v-u/t

= v- 45/1

v= 45/1

:. v=45m/s

:. the average acceleration of the car in m/s^2 is 45m/s

Explanation:

we can use acceleration formula

Answer:

The centripetal acceleration of the ball can be calculated using the formula:

a = v^2 / r

where

v = 4.3 m/s (speed of the ball)

r = 0.8 m (radius of the circle)

Plugging in the values:

a = (4.3 m/s)^2 / 0.8 m

a = 23.035 m/s^2

Therefore, the centripetal acceleration of the ball is 23.035 m/s^2.

Answer:

\(\huge\boxed{\sf a_c \approx 23.1 \ m/s^2}\)

Explanation:

Mass = m = 0.76 kg

Radius = r = 0.8 m

Speed = v = 4.3 m/s

Centripetal acceleration = \(a_c\) = ?

\(\displaystyle a_c=\frac{v^2}{r}\)

Put the given data in the above formula.

\(\displaystyle a_c=\frac{(4.3)^2}{0.8} \\\\\displaystyle a_c=\frac{18.49}{0.8} \\\\a_c \approx 23.1 \ m/s^2\\\\\rule[225]{225}{2}\)

The rare disorder that includes the inability to feel pain is called Congenital analgesia. That is option B.

Congenital analgesia is defined as ,the name implies, a genetic disorder that rarely occurs which makes one not to be able to feel pain.

It is an autosomal recessive disorder in which there is genetic changes in the PMRD12 gene.

Therefore, the rare disorder that includes the inability to feel pain is called Congenital analgesia.

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The reason the object seems red is that it absorbs all other colours and only reflects red waves.

Reflected light is what gives coloured objects their distinctive appearance. Violet, red, and orange wavelengths are absorbed when sunlight is shone on a green leaf. Green wavelengths are seen in the reflections. In each instance, we are observing the colours that contrast with the ones being absorbed.

Red is reflected when white light strikes a red object because all other hues that make up white light are absorbed. The item appears red because of this. A filter is a translucent substance that lets some colours flow through while absorbing others.

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If calcium reacts with a nonmetal, the charge of the calcium cation be +2.

A cation has a net positive charge because it has more protons than electrons. One or more electrons must be lost in order for a cation to develop; normally, these electrons are drawn away by atoms having a larger affinity for them. The chemical symbol is followed by the number of lost electrons and the ion's charge.

When  calcium reacts with a nonmetal, calcium (Ca)  loses two electrons to become Ca²⁺.  Hence, the charge of the calcium cation be +2 when calcium reacts with a nonmetal.

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Answer:

By opening the door, Elijah is using the chemical energy, which he obtained from eating food to do work. Thus, he is converting chemical energy to mechanical energy.

Stretching the spring by opening the screen door convert the potential energy which is stored in the spring to kinetic energy.

Overall there is conversion of chemical energy to potential energy.

By letting the door go, Elijah is using chemical energy. By snapping shut, the door is converting potential energy to kinetic energy. The overall energy change is conversion of chemical energy to kinetic energy.

Explanation:

Answer:

Basic

Coal

Acid

Geothermal

Scrubber

Allowance

Carpool

Conservation

Ecosystem

Nutrients

Water

Sun

48 m/s in terms of km/h is 720.8 km/h. In terms of m/min is 2880 m/min, in terms of km/s is 0.048 km/s and in terms of km/min is 2.88 km/min.

To solve this question, we need to understand some terms. The unit of velocity is measured in m/s. It can be expressed in different units of velocity.

1 km (kilometer) = 1000 meter

1 h (hour) = 3600 seconds

1 minutes = 60 seconds

To convert m/s into km/h,

48 m/s * 3600/1000 =  172.8 km/h

To convert m/s into m/min,

48 m/s * 60 = 2880 m/min

To convert m/s into km/s,

48 m/s ÷ 1000 = 0.048 km/s

To convert m/s into km/minutes,

48 m/s * 60 / 1000 = 2.88 km/min

Therefore, the 48 m/s expressed is 172.8 km/h, 2880 m/min, 0.048 km/s and 2.88 km/min.

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48 m/s is equivalent to  172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

To express 48 m/s in different units of velocity:

km/h (kilometers per hour):

To convert m/s to km/h, we can use the conversion factor of 3.6 since 1 m/s is equal to 3.6 km/h.

48 m/s * (3.6 km/h / 1 m/s) = 172.8 km/h

Therefore, 48 m/s is equivalent to 172.8 km/h.

m/min (meters per minute):

To convert m/s to m/min, we can use the conversion factor of 60 since there are 60 seconds in a minute.

48 m/s * (60 m/min / 1 s) = 2880 m/min

Therefore, 48 m/s is equivalent to 2880 m/min.

km/s (kilometers per second):

Since 1 kilometer is equal to 1000 meters, to convert m/s to km/s, we divide the value by 1000.

48 m/s / 1000 = 0.048 km/s

Therefore, 48 m/s is equivalent to 0.048 km/s.

km/minute (kilometers per minute):

To convert m/s to km/minute, we first need to convert m/s to km/s (as calculated in the previous step) and then multiply by 60 to convert seconds to minutes.

0.048 km/s * 60 = 2.88 km/minute

So, 48 m/s is equivalent to 2.88 km/minute.

Hence, 48 m/s is equivalent to approximately 172.8 km/h, 2880 m/min, 0.048 km/s, and 2.88 km/minute.

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A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon.

Answer:

Second choice

Explanation:

I suppose ME is the same as POTENTIAL energy

ME = mgh =  70 * 10 * 12 = 8400j

  Half way down,   4200 j is converted to Kinetic Energy

       1/2 m v^2 = 4200

       1/2 (70)  v^2 = 4200       v = 10.95 m/s

  Just before impact ALL of the 8400 j is now KE
      1/2 (70)v^2 = 8400          v = 15.49 m/s

The chemical reactivity of an atom is determined by the number of electrons present in its outermost shell, also known as the valence electrons.

These electrons play a key role in determining the chemical properties of an atom, such as its reactivity and bonding behavior. An atom with a full or nearly full valence shell is less likely to engage in chemical reactions, while an atom with a partially filled valence shell is more reactive and readily participates in chemical reactions. Thus, the number of electrons in the valence shell is a critical factor in determining the chemical reactivity of an atom. Chemical reactivity refers to the ability of a substance to participate in chemical reactions and form new compounds. It is determined by various factors, including the arrangement of electrons in the outermost shell (valence electrons), the stability of the electronic configuration, and the energy required to break or form chemical bonds.

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The horizontal force on the green block is greater than the vertical force on red block. F₂ > F₁.

According to Newton's third law of motion, every action is followed by a corresponding, countervailing reaction. Two separate bodies are affected by these forces of activity and response.

From the figure, it is clear that the force F₂ is acting such that, the whole system is being pulled.

F₂ = (m₁ + m₂)a

Also,

F₁ = m₁g

So,

m₁ = F₁/g

Therefore, the horizontal force can be given as,

F₂ = (F₁/g + m₂)a

Thus, we can say that horizontal force on the green block is greater than the vertical force on red block.

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Answer:

(a). The distance is 207 m.

(b). The initial velocity is 45.0 m/s

(c). The maximum height is 103.3 m

Explanation:

Given that,

Time = 4.60 s

We need to calculate the initial velocity

Using equation of motion

\(v=u-gt\)

Put the value into the formula

\(0=u-9.8\times4.60\)

\(u=45.0\ m/s\)

We need to calculate the distance

Using formula of distance

\(d=v\times t\)

Put the value into the formula

\(d=45\times4.60\)

\(d=207\ m\)

We need to calculate the maximum height

Using equation of motion

\(v^2=u^2-2gh\)

Put the value into the formula

\(0=(45.0)^2-2\times9.8\times h\)

\(h=\dfrac{(45.0)^2}{2\times9.8}\)

\(h=103.3\ m\)

Hence, (a). The distance is 207 m.

(b). The initial velocity is 45.0 m/s

(c). The maximum height is 103.3 m

Answer:

1. 7.5 m

2. towards west side

explanation:

I hope it will help you

To calculate the time it would take to reach Saturn, we need to know the distance between Earth and Saturn and the speed of the journey.

The average distance from Earth to Saturn varies due to the elliptical nature of the planet's orbit. On average, Saturn is about 1.4 billion kilometers (869 million miles) away from Earth. Let's use this as a rough estimate.Given that the speed is 5 * 5 thousand miles per hour (25,000 miles per hour), we can calculate the time it would take to travel the distance.Therefore, it would take approximately 3.97 years (or about 4 years) to reach Saturn at a speed of 25,000 miles per hour. Keep in mind that this is an approximation, as the distance and speed values are average values and may vary depending on the actual trajectory and speed of the spacecraft.

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Rotation period for a mass of 0.550 kg at the same radius is 1.45 s.

The rotation period of a mass in circular motion is given by:

T = 2πR/v

where T is the period, R is the radius of the circular path, and v is the velocity of the mass.

For the first mass with a mass of 0.45 kg, radius R of 0.140 m, and period T of 1.45 s, we can calculate the velocity as follows:

v = 2πR/T = 2π(0.140 m)/(1.45 s) = 0.6066 m/s

Now, we can use the velocity and radius values to find the period for the second mass with a mass of 0.550 kg:

T = 2πR/v = 2π(0.140 m)/(0.6066 m/s) = 1.45 s

Therefore, the rotation period for a mass of 0.550 kg at the same radius is 1.45 s.

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If the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.

The gravitational force between two objects is determined from Newton's second law of universal gravitation.

F = GmM/R²

where;

when the distance halved

F = GmM/(0.5R)²

F = GmM/(0.25R²)

F = 100GmM(25R²)

F = 4GmM/R²

Fnet = 4F

Thus, if the spaceship stops halfway between the planet and point P, the net gravitational force is four times as great.

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The correct statements are: - Newly built modern telescopes are mirrors. - Telescopes linked together like an interferometer have an effective size equal to the size of the telescopes added together. - Chromatic aberration limits the usable dimensions of any type of telescope.

What is a telescope?

Telescope is an open source project that enables developers to quickly and easily create modern web and mobile applications. It is built on Meteor, a comprehensive JavaScript platform for building modern web and mobile apps. Telescope is designed to be highly customizable and extensible, allowing developers to add features like social media, e-commerce, and custom analytics.

The false statements are: The diameter of the scope controls its magnification. The largest telescopes are refractors.

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Answer:

Potential energy is energy that is stored-or conserved-in an object or substance. This stored energy is based on the position, arrangement or state of the object or substance

According to this equation, so f = 3.29 x 1014 Hz. The light therefore has a frequency of 3.29 x 1014 Hz. The wavelength range of visible light is roughly 400–700 nm, and its frequency range is roughly 400–800 tHz.

The frequencies used by white LED lighting devices are a combination of 474 terahertz, 535 terahertz, and 638 terahertz. White LED technology has made it possible to create inexpensive, energy-efficient lighting that may be utilised in a range of applications, from desk lamps to street lamps.

The capacity to render different kinds of light visible for human sight makes light energy a type of kinetic energy. Light is referred to as an electromagnetic radiation that is produced by hot objects like the sun, lasers, and lightbulbs. Photons, which are tiny energy packets, are present in light.

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This system is moved from equilibrium. So, the effective spring constant of the system is 33.33 N/m.

Due to the series connection of the two springs, this occurs. The sum of the individual spring constants divided by the quantity of springs in a series connection yields the overall spring constant.

In light of this, the system's effective spring constant is equal to (20 N/m + 50 N/m) / 2 or 33.33 N/m.

The spring constants must be added up, and the resulting value used to calculate displacement, in order to obtain the overall displacement of the mass.

This means that for every unit of force applied to the mass, it will move 33.33 N/m.

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Answer:

Not sure what yours looking for but When a disease is widespread, epidemiological studies investigate what associated factors, such as location, swx, exposure to chemicals and many others, make a population more or less likely to have an illness, condition, or disease thus helping determine its etiology.

Answer:

Some anxiety disorders have different symptoms and it is important to figure out how those symptoms develop. Symptoms may develop from physiological, psychological, or environmental influences. Physiological factors may include heredity, chemical and hormonal imbalances, gender (females are more prone to anxiety than males), and anxiety sensitivity, which has to do with how one’s body reacts to chemical changes. Psychological influences focus on how one’s mind reacts to fearful situations. Environmental factors also influence how individuals deal with fearful situations.  Environmental stress levels, how we think or interpret situations, and our observations of how others react to similar situations all impact how we manage anxiety.

Explanation:

The activity of the carbon in the charcoal sample is used to determine its age.

The activity of 2.20 103 decays per minute can be converted to decays per gram of carbon present by dividing by the weight of the sample. This gives us a value of 2.34 decays per gram. We then compare this to the activity of living material, which is 15.0 decays per minute per gram of carbon.

This indicates that the charcoal sample is much older than living material, and is therefore likely to be from an ancient campsite.

By using the decay rate of carbon-14, we can estimate the age of the charcoal sample to be approximately 5,450 years.

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Answer:

100 ml de una disolucion 05 M de sulfate de vivre

Answer:

4 is the answer

Explanation:

Answer:

I gonna give you the number so but you need to round 6.19047619048

Explanation:

The three main approaches to the identification of unknown bacteria are as follows:Phenotypic identification, Molecular identification and Biochemical identification

1. Phenotypic identification

Phenotypic identification involves the physical and chemical characteristics of the bacterial colonies and cells. In this method, bacterial cells are studied through microscopy, their ability to grow on various types of media, cellular morphology, and other factors that are easy to observe.

2. Biochemical identification

Biochemical identification is based on the biochemical reactions of bacteria. This method involves the use of different chemical and biochemical tests to identify the bacteria. The tests are designed to identify specific enzymes or metabolic pathways. The results of the tests are then used to identify the bacteria.

3. Molecular identification

Molecular identification involves the use of DNA analysis to identify bacteria. In this method, the DNA of the bacterial cells is isolated and analyzed. This method has become popular in recent years due to its accuracy and speed.

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The strand of Christmas lights is an example of a series circuit in use. When the bulbs in this circuit are linked in series, the current passes through one bulb before going on to the next.

The circuit may be damaged if one of the bulbs burns out, making the entire string of lights inoperable. Because the entire voltage of the circuit is shared among the resistors in proportion to their resistance, the biggest resistor in a series circuit—or the one with the highest resistance—dissipates the most power. The larger resistor wastes the greatest power since it has the highest resistance and hence gets the largest portion of the voltage. Understanding this is crucial since it may be helpful.

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