You are asked to do an experiment to measure g. You set up a device that drops a metal ball from rest from a height of 1.650 meters. Using an accurate timing device that detects the release of the ball and it’s landing in the floor, you measure the average time of the falling ball to be 0.585 seconds. What do you measure the value of g as?

The correct answer is option ( A) the ratio of their average speeds (bird 1/bird 2) is 1.0

velocity = distance / Time

Let us assume distance covered by Bird 1 = d

case 1 (Bird 1) :-

time = 6 hours

velocity(Bird1) = d/6 = 0.167*d

case 2 (Bird 2) :-

time = 12 hours

distance is twice of Bird 1 = 2d

velocity(Bird2) = 2d/12 = 0.167*d

now, velocity of Bird1/Bird2 =  (0.167*d)/(0.167*d) = 1.0

So,velocity of (Bird1/Bird2) is  1.0 .

Average velocity / Average speed = Total displacement / Total distance. Remember that the numerator is less than or equal to the denominator. As a result, the ratio is always equal to or less than one. Distance traveled divided by time taken is the most commonly used formula for calculating average speed. The other formula is to add the initial and final speeds together and divide by two.

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The mass of a 10.4 cm³ is, approximately, 117.42 grams.

Volume of the cube: 10.4 cm³

Now, let's look up the density of lead:

Density of lead: 11.29 g/cm³.

This value fo density tells us that 1 cm³ of lead has a mass of 11.29g. Hence, we can stablish the following rule of 3 to find the mass of our cube.

1 cm³ ----------------> 11.29 g

10.4 cm³------------> x

x= (10.4 cm³ ⋅ 11.29 g)/1 cm³

x= 117.42 g.

Conclusion.

The mass of a 10.4 cm³ is, approximately, 117.42 g.

The uneven gamete division causes chromosomal abnormalities.

A gamete is a fully developed reproductive or sex cell with haploid chromosomes that has the capacity to mate with another haploid gamete to create a diploid zygote. The fusion (or combining) of two gametes, namely a male and a female gamete, results in the zygote. Fertilization is the process through which two gametes combine to form a zygote.

One of the gametes is typically bigger and non-motile, which is characteristic. It is sometimes referred to as an ovum or an egg cell. The second gamete cell is smaller and motile. It is also known as a sperm cell or a male gamete. In humans, each gamete has 23 chromosomes, and when they fuse, a diploid zygote with 46 chromosomes is created. These reproductive cells are created in the gonads, or reproductive organs, of the male and female animals. The male gametes in seed-bearing plants are the pollen, whereas the female gametes are housed in the plant's ovules. The gamete in plants, however, is not invariably a haploid cell.

Hence, Uneven gamete division causes the chromosomal abnormalities.

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Answer:

90%

Explanation:

The energy efficiency formula runs like efficiency = useful energy output/energy input * 100%.

The energy output here is 600 (300+240) and the input is 600J. However since its heat energy of 60 you won't include that. So you will input the output and the energy input in the formula and you will get 540/600=0.9

So your answer is 90%.

Sorry if its confusing, have a good day! :D

Based on the results of the experiment, it can be concluded that the claim by Brand A that their sanitizer kills more bacteria than the other 4 leading brands of sanitizer is true.

An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.

The experiment is the foundation of the scientific method, which is a systematic means of exploring the world around us.

Experiments takes place in laboratories, but can also be performed anywhere at any time.

There are some steps in the scientific methods which includes:

Considering the data table from the experiment:

The results of this study concur with brand A goals as hand sanitizers producers as product effectiveness has improved over time. The performance of brands A has indicated improved effectiveness as their claims has been found true with respect to other  manufacturers of the sanitizer. This study showed that brand A hand sanitizers were tested  and found more effective against selected brands.

In conclusion, the results of the experiments showed that in the comparison between the brands of hand sanitizers, brand A were most effective.

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The average speed of round trip is 1192.8 m/s

Average speed of the round trip is

2*994*1491/(994+1491)

= 1192.8 m/s

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It is false that if one pound of force acts through a distance of two feet, one foot-pound of work is done.

Work is a measure of energy expended in moving an object. It is most commonly calculated by multiplying the force by distance.

It is said that no work is done if the object does not move.

According to this question, if one pound of force acts through a distance of two feet, a work of one pound-two feet is done.

It is therefore, false that if one pound of force acts through a distance of two feet, one foot-pound of work is done.

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The cost of operating it through the night is $0.96.

We know that the electrical current is obtained by the use of the formula;

P = IV

P = power

V = voltage

I = current

I = P/V

I = 1500 W/110 V

I = 13.6 A

Now;

The power in kW = 1.5 kW hence the energy used in 1 hour is 1.5 kWhr

If the cost of 1 kWhr = $0.08

Then 1.5 kWhr costs =  1.5 kWhr  * $0.08/1 kWhr

= $0.12

To operate it all through the night = 8 * $0.12  = $0.96

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Answer:

+4m/s

Explanation:

You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min, then  velocity is 4 m/s.

When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.

Uniform motion an object is said to have uniform motion when object cover equal distance in equal interval of time within exact fixed direction. For a body in uniform motion, the magnitude of its velocity remains constant over time.

Given in the question you drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min.

The velocity in m/sec is given as 4 m/s.

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The average speed you must run is 7.97 mph.

The average speed of an object is the ratio of total distance traveled by the object to

Average speed = total distance / total time of motion

Total time of motion = total distance / average speed

total time = (18.5 + 5.5) / (14.5)

total time = 1.66 hours

t1 = 18.5 / 19.1

t1 = 0.97 hour

t2 = 1.66 hr - 0.97 hr

t2 = 0.69 hr

v = 5.5 miles /0.69 hr

v = 7.97 mph

Thus, the average speed you must run is 7.97 mph.

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A. Reducing its mass to one-quarter of its original value;  will reduce the kinetic energy of the object by half.

Kinetic energy is a type of power that a moving object or particle possesses. An item accumulates kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force. A moving object or particle has kinetic energy, which depends on both its mass and its rate of motion. The type of motion can be vibration, rotation on an axis, translation (or travel along a path from one place to another), or any combination of these.

A body's translational kinetic energy is equal to half of the product of its mass, m, and its velocity, sq,v,

The formula of kinetic energy = 1/2 x mv^2

Since it is based on the mass of the object, the kinetic energy also gets reduced by half along with the mass.

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Answer:30 km/hr2 is the exal

Explanation:

Answer:

If you were given the vector in vectorial form, for example, <5,7>, then the first number (5) will always be the x component and the second number (7) is the y component.

In other cases, you are given the magnitude of the vector and the angle created by said magnitude with respect to the y or x axis. In these cases, you must use the magnitude and angle of the vector as if it was the hypotenuse of a right triangle and find the values of x and y as the legs of said triangle using the sine and cosine created by the magnitude of the vector and the value of said magnitude.

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Explanation:

Q=mc(T2-T1)

or

q = mcΔT ,

where m is the mass of the sample,

c is the specific heat,

and ΔT is the temperature change.

Q=2.0 × 2000 × 5

Q=20000J⋅kg −1 ⋅K −1

I hoped I helped pls rate as brainliest

The list in order that best describes the ball's motion as it drops into the spring is e, b, d, a, f and c.

The order is as follows:

Option (e) come first because it the starting point. (b) comes next as the ball comes to rest as the spring is fully compressed. (d) comes next as the ball started its upward movement. (a) comes next as the spring is extending. (f) comes next as the ball has completely left the spring. (c) comes next as it indicates the balls movement after leaving the spring.+

Therefore, e, b, d, a, f and c is the correct order of explanation of the ball's movement.

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Answer:

See below

Explanation:

The lead swimmer will finish in   44 m / 5 m/s = 8.8 seconds

   the second swimmer has to cover the 44 m PLUS the length he is behind

     the first swimmer in the same amount of time

         (44 m +  1/2 s * 5 m/s) / 8.8 s   = 5.284 m/s

Answer:

2.8 would be the correct answer as 1 rounds down

Answer:

1/2 m v^2 - G M m / R      escape velocity equal to energy at surface

v^2 = 2 G M / R = 2 * 6.67E-11 * 7.4E22 / 1.7E6

v^2 = 2 * 6.67 * 7.4 / 1.7 * 105 = 5.81E6

v = 2410 m/s = 2400 m/s

The graph is displayed in the following attachment.

The graph shows that the answers to the problem are x = -1.2 and x = 1.7.

From the image, we may deduce that

The graph is displayed in the following attachment.

The graph shows that the answers to the problem are x = -1.2 and x = 1.7.

We must create the graph of the function for the given range of values based on the image (that is for values of x from -3 to 3)

We will first establish the function's table of values.

Values for the function x y -3 in a table 1.33 -2 2 -1 4 0 Definable

1 -4 2 -2\s3 -1.33

(The docx attachment provides a better view.)

Additionally, the function's graph (purple lines) is

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Answer:

Voice over Internet Protocol (VoIP)

Explanation:

is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line.

Answer:

here's the answer

Explanation:

given:

h= 20.0m

M= 12.0kg

g=10m/s²

solution:

potential energy = mgh = (12.0kg)(10m/s²)(20.0m)

= 2400

potential energy = 2400J

hope this help if it does help I'd be happy if you follow and give me the brainliest answer

The correct answer is nuclear fusion, radiation, and conduction.

It is a nuclear process in which energy is produced by colliding light atoms. It is the opposite of fission, which results in the disintegration of heavy isotopes. The sun and other stars produce light and heat through fusion.

According to the energy of the emitted particles, radiation is frequently classified as either ionising or non-ionizing. More than 10 eV is often carried by ionising radiation, which is sufficient to ionise atoms and molecules and rupture chemical bonds.

Conduction is an observable occurrence in all states of matter and is the process of transmitting energy through the motion of particles in touch with one another (solids, liquids and gases). Conductors are substances that permit conduction. Conduction is divided into three categories: conduction of heat, conduction of electricity, and conduction of sound.

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The question can be solved using the principle of Newton's second law of Motion. Newton's second law of motion  is often stated as F=ma, which means the force acting on an object is equal to the mass (m) of an object times its acceleration.

F=ma

According to the given data,

Force of 20N is applied to the object

acceleration of 5 m/s^2 is obtained on the object

From Newton's second law of motion,

F=ma

20N =m x 5

m=4kg

To obtain an acceleration of 1 m/s^2, the force required will be

F= ma

F= 4 X 1 = 4 N

To obtain an acceleration of 10 m/s^2, the force required will be

F=ma

F= 4 x 10

   = 40 N

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Answer:

section 2

Explanation:

section 2 contains Alkali, Alkaline, Transition, and Post-transition metals

Answer:

57.98 °Fahrenheit =

14.4333 °Celsius

Explanation:

(rounded to 6 digits)

Urban or rural infrastructure can play an important role in a community recreation because these infrastructure is used by people of the community for the recreational purpose.

Urban Community:

The density of population and networks of activities, the cities contain publics buildings as well as government buildings which have organized religion, commerce, social interactions. So these peoples and the buildings provide the focus for communities.

The Urban infrastructure consists of gas distribution, urban transport, primary health services and many other things.

Rural Community:

Agriculture is the main fundamental need for the rural areas people which forms the basis of rural economy. A farmer has to perform various agriculture activities for which he needs the cooperation of his family and usually need a very large area for the farming.

So we can conclude that Urban or rural infrastructure can play an important role in a community recreation because these infrastructure is used by people of the community for the recreational purpose.

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The part of the brain that would be responsible for making sure you know who everyone is Hippocampus; option A

The brain is the organ in the body which controls the function of other organs in the body.

The brain is made up of cells called neurons.

The brain is divide into three main parts namely:

The cerebrum consists of two cerebral hemispheres the outer layer called the cortex.

The brainstem consists of the medulla, pons, and midbrain.

The cerebellum consists of three lobes the anterior lobe, the posterior lobe and the flocculonodular lobe.

The hippocampus is part of the temporal lobe which controls recognition and dentification of people.

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Resistivity is the resistance between opposite faces of a unit cube.

The electrical resistance of a conductor with a unit cross-sectional area and unit length is called resistivity. Resistivity is a distinctive attribute of any material that may be used to compare different materials based on how well they conduct electric currents. Low conductivity is indicated by high resistance.

The Greek letter rho is frequently used to represent resistance, which is numerically equivalent to the resistance R of a wire-like specimen, multiplied by its cross-sectional area A, and divided by its length l; RA/l. The ohm is the measurement of resistance. Units of ohm-centimeter can be used to represent resistance when lengths are measured in centimeters. The temperature of the material also affects the value of resistivity.

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Yes a scientific is more accurate because it has what is actually correct and what is it and ect than a theory