When dropped from rest, any object will fall a total distance of 19.6 m in the first 2 seconds of its fall. How far
does the object fall just during the 2nd second (i.e., from time t= 1 s to t = 2 s)?

Answers

Answer 1

Answer: The acceleration due to gravity increases the velocity of a falling object by 9.8 m/s per

second. Answer B is wrong because velocity increases. Answer C is wrong because the

distance increases every second. Ans. E is wrong because the derivative of distance with

respect to time gives the velocity, not the acceleration.

Explanation:


Related Questions

Which of the following objects has the greatest inertia?

5.0 kg object moving 5.0 m/s
15 kg object moving at 1.0 m/s
20.0 kg object at rest
10.0 kg object at rest

Answers

Last one has the greatest inertia

hope it helps

plzz Mark me as brainlylist

can someone please help me with these

Answers

Answer:

1000mg = 1g

160cm = 1600mm

109g = 0.109kg

250m = 0.25km

14km = 14000m

1L= 1000ml

480cm = 4.8m

27g = 0.027kg

198g = 0.198kg

75ml = 0.075L

50cm = 0.5m

5L = 5000mL

16cm = 160mm

65g = 65000mg

2500m = 2.5km

355ml = 0.355L

8mm = 0.8cm

6.3cm = 63mm

5.6m = 560cm

26000cm = 260m

56500mm = 0.0565km

27.5mg = 0.0275g

923cm = 9.23m

0.025km = 2500cm

  First Column

1. 1000mg = 1g

2. 160cm = 1600mm

3. 109g = 0.109kg

4. 250m = 0.25km

5. 14km = 14000m

6. 1L= 1000ml

7. 480cm = 4.8m

8. 27g = 0.027kg

  Next column

9. 198g = 0.198kg

10. 75ml = 0.075L

11. 50cm = 0.5m

12. 5L = 5000mL

13. 16cm = 160mm

14. 65g = 65000mg

15. 2500m = 2.5km

16. 355ml = 0.355L

  Last Column

17. 8mm = 0.8cm

18. 6.3cm = 63mm

19. 5.6m = 560cm

20. 26000cm = 260m

21. 56500mm = 0.0565km

22. 27.5mg = 0.0275g

23. 923cm = 9.23m

24. 0.025km = 2500cm


help pls asap , i do not get it , I’ll name you the brainliest

Answers

We know, velocity = Displacement/Time

Therefore, Displacement= Velocity×Time

Here, displacement= 20×5 m = 100 m

Answer: 100 m

which solutions do you think are:
a. acidic in nature?
b. basic in nature?

Answers

[A] Acidic in nature:-

Lime juiceHumans BloodVinegar

[B] Basic in nature:-

Lime WaterAntacidButtermilk

Explanation:

a) The solutions can be classified as basic or acidic depending on their hydrogen ion concentration relative to pure water. If the value of pH is below seven, then the solution is acidic and if the pH is greater than seven then the solution is said to be basic.

b) Basic in nature means when a substance is soapy and bitter in taste and when a subtance changes red litmus blue. This nature of substance is basic.

HOPE THIS HELPS YOU.....

A cheetah has an average velocity of 70 mph. If a cheetah was chasing a water Buffalo for 23 miles, how long was the cheetah chasing its prey

Answers

Answer:

t=distance ÷ speed

23÷70

t=0.33 sec

difference between uniform velocity and variable velocity​

Answers

Explanation:

when a body covers equal distance in equal interval of timein a specific direction it is said to have uniform velocity .

when a body covers unequal distance in equal interval of time in a specified direction , it is said to have variable velocity .

This is probaly the first and only real question ive asked and will ask but can someone help me plzzz!

Answers

Answer:

open the dictionary/glossary. it will give you the definitions of the words there.

Explanation:

Answer:

i think it goes like this

Explanation:

Below you will see diagrams showing a trip taken by Fred and a trip taken by Frank. For each person, find their distance, displacement, average speed, and average velocity from A to B. Each square is 10 meters wide, and use words like north, south, east, and west for direction.

The first thing Fred did was go south for 4 seconds. If he wanted to cut his average speed in half, how long should that southward motion last (assuming the other two motions happen in the same time as shown)? Explain your reasoning.

Would this amount of wait-time also have halved his average velocity?

Answers

Part A

The completed table of values of the motion of Fred and Frank are;

[tex]\begin{array}{|l|c|c|}&\mathbf{Fred's \ Trip}&\mathbf{Frank's \ Trip}\\\mathbf{Distance}&150 \, m&120 \, m\\\mathbf{Displacement}&30 \, m&50 \, m\\\mathbf{Average \ Speed}&15 \, m/s&10 \, m/s\\\mathbf{Average \ Velocity}&3 \ m/s&4.1 \overline 6 \, m/s\end{array}\right][/tex]

Part B

The time the southward motion should last is 14 seconds

The reason the above values are correct is as follows;

The total distance is given by summing the length of the sides of the square that lay along the path

Known parameters:

For Fred's Trip, we have;

Distance = 60 meters South + 30 meters East  + 60 meters north = 150 meters The total distance = 150 meters

Required:

The displacement = 30 meters East

Average speed = Total distance/(Total time)

Total time = 4 sec + 3 sec + 3 sec = 10 sec

Average speed = 150 m/10 sec = 15 m/s

Average velocity = Displacement/Total time

Average velocity = 30 m/10 sec = 3 m/s

Known parameters:

For Frank's Trip, we have;

Distance = 30 meters North + 60 meters East  + 30 meters south = 120 meters

The total distance of Frank's trip = 120 meters

Required:

The displacement = 50 meters East

Average speed = Total distance/(Total time)

Total time = 5 sec + 5 sec + 2 sec = 12 sec

Average speed = 120 m/12 sec = 10 m/s

Average velocity = Displacement/Total time

Average velocity = 50 m/12 sec = 4.1[tex]\overline 6[/tex] m/s

Therefore, we have;

[tex]\begin{array}{|l|c|c|}&\mathbf{Fred's \ Trip}&\mathbf{Frank's \ Trip}\\\mathbf{Distance}&150 \, m&120 \, m\\\mathbf{Displacement}&30 \, m&50 \, m\\\mathbf{Average \ Speed}&15 \, m/s&10 \, m/s\\\mathbf{Average \ Velocity}&3 \ m/s&4.1 \overline 6 \, m/s\end{array}\right][/tex]

To reduce his speed in half, we have;

New average speed, s₂ = s₁/2

∴ s₂ = (15 m/s)/2 = 7.5 m/s

Let x represent the time for the southward motion, we have;

(150)/(6 + x) = 7.5

(6 + x) × 7.5 = 150

x = (150 - 7.5×6)/7.5 = 14

Therefore, the time for the southward motion should last for 14 seconds

Learn more about displacement and velocity here:

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Differentiate the following functions with respect to x
xsin x​

Answers

Answer:

Here is your answer

Hope it helps

The answer is xcos x + sin x

Explanation:

d/dx (xsin x)

= x d/dx (sin x) + sin x d/dx (x)

= xcos x + sin x (1)

= xcos x + sin x

Thus, The answer is xcos x + sin x

-TheUnknownScientist

The small bunny exerts a force of 15 Newtons as it hops a distance of 3 meters to pass the large rabbit. How much work did the small bunny do?
45 Joules
0.2 Joules
18 Joules
5 Joules

Answers

Answer:

W = F × d

W = 15 × 3

W = 45 Joules

what can the magnetic field be used for​

Answers

Answer:

the magnetic field can be used to make electricity

Explanation:

Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical energy

what material of mass 39g,has a volume of 5cm^3

Answers

the material of density 7.8 g/cm³

A car travels along highway with a speed of 36 km/h. Find out the distance
travelled by the car in 1 minute.

Answers

Please find attached photograph for your answer. Hope it helps. Please do comment

Q1) A spring stretch 2cm When 2cm When a IO n wright hangs
one it. How far will it stretch with a weight of 20 n

Answers

Answer:

1cm=100m

Explanation:

2cm=?×

2cm×100

-------------

1Cm

=200m

can anyone tell me the answer of these whole question? thank you so much!

Answers

Answer:

a) the most dangerous combination of tires and roads surfaces are old tires on wet concrete because it shows the longest distance moved by a car when the brake is pushed

b) Old tires on wet concrete

c) wet tires require longer braking distance than dry tires because the wet surface on the tires slide rather

than stopping gradually.

PLZ FAST Scientific knowledge is both long lasting and always _______.

changing
non-observable
permanent
untestable

Answers

The answer is changing

write some example of unit

Answers

Answer:

The definition of a unit is a fixed standard amount or a single person, group, thing or number. An example of a unit is a single apartment in an apartment building. ... (sciences) A standard measure of a quantity. The centimetre is a unit of length.

Answer:

Km, m, s, m/s, m/s^-2

Explanation:

Well there is a lot more

Calculate the frequency of a vibrating body if it vibrates 400 times in 20 seconds. Identify the category of sound it belongs to.(sonic sound/ ultrasound/ infra sound)

Answers

F= 20Hz
The category of sound is a sonic sound

Answer:

F+20Hz

Explanation:

9. Liquid A has greater density than Liquid B. Which liquid will be exerting more pressure on the sides of the container?

Answers

Answer:

The depth of water near middle tube is greater so the water comes out with greater pressure from middle tube and falls farther away from the base of vessel. The depth of water near lowermost tube is the greatest so the water comes out of lowermost tube with the greatest pressure and goes farthest from the vessel.

determine the number of significant figures in 00.6022009

Answers

The number of significant figures in 00.6022009 is 7 .

The number of significant figures is 7.

Explanation:

Significant figures

The figures in a number that expresses the magnitude of a quantity to a specific degree of accuracy are known as significant digits.Digits from 1 to 9 are always significant and have an infinite number of significant figures.All non-zero numbers are always significant. For example, 684, 9.54, and 63.4 all have three significant figures.All zero’s between integers are always significant. For example, 2005, 8.005, and 10.05 all have four significant figures.All zero’s preceding the first integers are not significant. For example, 0.0038 has two significant figures.All zero’s after the decimal point are always significant. For example, 4.500, 43.00, and 950.0 all have four significant figures.All zeroes used solely for spacing the decimal point are not significant. For example, 6000 has one significant figure.

Given :

The number 00.6022009

To find:

The number of significant figures in the number.

Solution

00.6022009

All zero’s preceding the first integers are not significant.

Zeros in between the integers are significant

So, the number of significant figures is 7.

Learn more about significant figures here:

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which diagram shows the correct path of light through the glass​

Answers

Explanation:

When light travels from a rarer to a denser medium, it bends towards the normal. And when light travels from denser to rarer medium, it bends away from the normal. Also, from the diagram, it is clear that emergent ray will always be parallel to the incident ray.

A net force of 153 N accelerates a 22.0 kg mass. What is the resulting acceleration?

Answers

The resulting acceleration is 6.95 m/s².

Net force (F) = 153 N

Mass (m) = 22.0 kg

To find the resulting acceleration (a), we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The equation can be written as:

F = m * a

Rearranging the equation, we have:

a = F / m

Substituting the given values, we get:

a = 153 N / 22.0 kg

Evaluating the expression, we find:

a ≈ 6.95 m/s²

Therefore, the resulting acceleration is approximately 6.95 m/s².

For more such questions on acceleration, click on:

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Pls help (look at picture below)

Answers

A. Controlled Variable.

I hope this helps!

1. The atomic number of an element is the same as the number of ______ that the element has.

Answers

Answer:

Explanation:

The total number of protons in the nucleus of an atom gives us the atomic number of that atom. It is represented with the letter ‘Z.’ All the atoms of a particular element have the same number of protons, and hence the same atomic number. Atoms of different elements have different atomic numbers.

what is known physical quantity

Answers

Answer:

those quantity which are measured and expressed on mathematical process is called physical quantity

4.
Which of the following statement is correct
The density of an object does not remains same if we take small quantity of that substance.
The density of an object remains same irrespective of its shape, size and quantity.
The density of an object does not remains same irrespective of its shape and size.
The density of an object remains same only if its shape and size remains same.

Answers

The density of an object remains same irrespective of its shape, size and quantity.

Explanation:

Density is an intensive property. This means that regardless of the object's shape, size, or quantity, the density of that substance will always be the same. Even if you cut the object into a million pieces, they would still each have the same density. It is because density in an intensive property of matter.

please mark brainliest

quanto e 384400 convertido em ua

Answers

Answer:

Eu não sei

Explanation:

Lara has four samples of substances:

Sample A: 5 g of salt
Sample B: 8 g of sand
Sample C: 8 g of sugar
Sample D: 5 g of sugar

Which of the following samples have the same solubility in water?

Sample A and Sample C

Sample A and Sample D

Sample C and Sample B

Sample C and Sample D

Answers

Answer:

A and C, A and D, C and D

Explanation:

they are soluble in water

How does the distance traveled by the coin compare to its displacement after ten flips?

Answers

Answer:

To calculate displacement, simply draw a vector from your starting point to your final position and solve for the length of this line. If your starting and ending position are the same, like your circular 5K route, then your displacement is 0. In physics, displacement is represented by Δs.

Explanation:

hope helps

Some students collect some drops of water from a leaking tap.
The students measure the volume of the water they collect.
State the term for the equipment that is suitable for measuring the volume accurately.

Answers

Explanation:

The concept of temperature has evolved from the common concepts of hot and cold. Human perception of what feels hot or cold is a relative one. For example, if you place one hand in hot water and the other in cold water, and then place both hands in tepid water, the tepid water will feel cool to the hand that was in hot water, and warm to the one that was in cold water. The scientific definition of temperature is less ambiguous than your senses of hot and cold. Temperature is operationally defined to be what we measure with a thermometer. (Many physical quantities are defined solely in terms of how they are measured. We shall see later how temperature is related to the kinetic energies of atoms and molecules, a more physical explanation.) Two accurate thermometers, one placed in hot water and the other in cold water, will show the hot water to have a higher temperature. If they are then placed in the tepid water, both will give identical readings (within measurement uncertainties). In this section, we discuss temperature, its measurement by thermometers, and its relationship to thermal equilibrium. Again, temperature is the quantity measured by a thermometer.

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