A 5 kg stone falls from height of 100m and penetrate 2m in a layer of sand. The force applied by ground is

Answers

Answer 1

Answer:

49N

Step-by-step explanation:

Below is the calculation for the force applied:

It is given that the mass of stone is 5 kg and it falls from the height of 100 meters. Therefore, a force can be determined by multiplying the mass will a constant value of "a".

Force = Mass x a

Force = 5 x 9.8

Force = 49 N

Since the action-reaction are equal and opposite so the each will apply the same force.


Related Questions

Find the missing side of the triangle. Round your answers to the nearest tenth if necessary.

9 ft

2.5 ft

9.4 ft

7.5 ft

Answers

Given:

In a right angle triangle, the measures of two legs are 5 ft and 5.6 ft. The measure of the hypotenuse is x.

To find:

The value of x.

Solution:

Pythagoras theorem: In a right angle triangle,

[tex](Hypotenuse)^2=(Base)^2+(Perpendicular)^2[/tex]

Using Pythagoras theorem, we get

[tex](x)^2=(5)^2+(5.6)^2[/tex]

[tex]x^2=25+31.36[/tex]

[tex]x^2=56.36[/tex]

Taking square root on both sides, we get

[tex]x=\sqrt{56.36}[/tex]

[tex]x=7.50733[/tex]

[tex]x\approx 7.5[/tex]

The measure of missing side is 7.5 ft. Therefore, the correct option is D.

A rod 123.75 cm long is sawn into 16 equal lengths. If a wastage takes place of ¼ cm for each saw cut, what is the length of each piece?

Answers

Answer:

7.5 cm

Step-by-step explanation:

A rod 123.75 cm long is sawn into 16 equal lengths.

The length of each rod is calculated as:

123.75cm/16 =

= 7.734375cm

If a wastage takes place of ¼ cm for each saw cut,

The length of each piece is calculated as:

7.734375cm - 1/4 cm

7.734375cm − 0.25 cm

7.484375cm

Approximately = 7.5 cm

Therefore, the length of each piece = 7.5 cm

Si a = 7; b = – 2 , entonces 6ab es:


Seleccione una:
a. 40
b. 21
c. 11
d. -84

Answers

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {d. \: - 84}}}}}}[/tex]

[tex]\sf \bf {\boxed {\mathbb {Step-by-step\:explanation:}}}[/tex]

✒ [tex] \: 6\:a\:b[/tex]

Plugging in the value "a = 7" and "b = -2" in the above expression, we have

✒ [tex] \: 6 \times 7 \times ( - 2)[/tex]

✒ [tex] \: - 84[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]

Given the equation 5x + 23 = − 2x − 12, which order of operations completely solves for x?

Answers

Step-by-step explanation:

5x+2x=-12 -23

7x=-35

which will give you 1 over 5writing your answer in a standard form it helps you to get the answer easy and quick

Answer:

-5

Step-by-step explanation:

5x+23=-2x-12

5x-(-2x)+23=-12

5x+2x=-12-23

7x=-35

x=-35/7

x=-5

A man is now 3 times as old as his son. In 10 years time, the sum of their ages will be 76.
How old was the man when his son was born?​

Answers

Answer:

28

Step-by-step explanation:

A man is now 3 times as old as his son.

m = 3s

In 10 years time, the sum of their ages will be 76

(m + 10) + (s + 10) = 76

Subsitute for m = 3s

(3s + 10) + (s + 10) = 76

4s + 20 = 76

4s = 56

s = 14

m = 3s = 14 * 3

m = 42

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

How old was the man when his son was born?

m - s = 42 - 14

m - s = 28

Quadrilateral QRST is inscribed in the circle. Find the measurements of each of the angles in Quadrilateral QRST. Show your work. (x-6) (x+12) (x-4) ​

Answers

Answer:

Given- O is the centre of a circle in which an equilateral ΔPQR has been inscribed.

To find out- ∠QOR=?

Solution- The points P, Q & R are on the circumference of the circle since ΔPQR has been inscribed in the circle. Now the chord QR subtends ∠QOR to the centre O and ∠QPR to the circumference at P.

∴ By rule, ∠QOR=2∠QPR.........(i).

Now PQR is an equilateral Δ. Each of its angle is 60

o

. i.e ∠QPR=60

o

.

So, from (i), ∠QOR=2∠QPR=2×60

o

=120

o

.

Ans- Option B.

solution

I don’t know how to do this can someone help out

Answers

Answer:

Third side = 4

Step-by-step explanation:

Use Pythagoras theorem :

C = longer side, a = 10, b ?

[tex]c^2 = a^2 + b^2[/tex]

[tex](2 \sqrt{29})^2 = 10^2 + b^2\\\\4 \times 29 = 100 + b^2\\\\116 - 100 = b^2\\\\b^2 = 16 \\\\b = 4[/tex]

Will give brainlist!!

Answers

Answer:

B

Step-by-step explanation:

Have a wonderful day

Answer:
The answer Is B

Three same-sized cubes are attached to the top of a rectangular prism as shown below.
If a=10 cm, b = 26 cm, and c = 6 cm, what is the surface area of the figure?
ANSWER ASAP PLEASE!!! IT WOULD MEAN ALOT

Answers

Answer:

Surface area of the figure = 1672 [tex]cm^{2}[/tex]

Step-by-step explanation:

Surface area of the figure = surface area of the prism + surface area of the 3 cubes

The surface area of the rectangular prism = sum of the area of its individual sides

                                             = 2(26 x 10) + 2(10 x 10) + 2(26 x 10)

                                             = 520 + 200 + 520

The surface area of the rectangular prism = 1240 [tex]cm^{2}[/tex]

Surface area of one of the cubes = 5(6 x 6)

                                                      = 180 [tex]cm^{2}[/tex]

The surface area of the 3 cubes = 3 x 180

                                                     = 540 [tex]cm^{2}[/tex]

Thus, the surfaces of the cubes on the prism covers a total area of 108 [tex]cm^{2}[/tex].

So that;

The surface area of the figure = (1240 - 108) + 540

                                               = 1132 + 540

                                                = 1672 [tex]cm^{2}[/tex]

The first three terms of a sequence are given. Round to the nearest thousandth (if necessary): 261. 256, 251.... Find the 50th term.​

Answers

Answer:

50th term = 16

Step-by-step explanation:

I'm not good with cel, please help!

Answers

Answer: -25

Step-by-step explanation: Please give brainliest.

Answer:  -25 degrees Celsius

=========================================================

Explanation:

Draw a vertical number line. Plot -20 on it. Then move 5 units down to arrive at -25. Think of it as a thermometer where the temperature can be measured below 0 degrees, or you could think of it like floors of a building. Negative values would be basement floors.

The diagram below describes what's going on when we compute -20-5 = -25.

help appreciated !!!!!

Answers

Answer:

38.43 sales tax, 597.43 total price

Step-by-step explanation:

559x.06875=38.43 sales tax

559+38.43=597.43 total price

Which of the following is equivalent to 2a^7 + 5a^7?

Answers

Answer:

??????

I don't exactly see the following in your question srry :(

But I think it should be 2a^7 + 5a^7 = 7a^7

Answer:

(2+5)a^7

Step-by-step explanation:

i took the test hope this helps ^^

What is the measure of angle ABC?​

Answers

Answer:

A

Step-by-step explanation:

from a to b to c it makes the angle 75 degrees im 90 percent sure

Answer:

Step-by-step explanation:

ABC = (1/2)(75 +45)

ABC = 60º

Context: You and your friends go to the state fair. It costs $6 to get into the fair and $2 each time you go on a ride. Where do you see the y-intercept in the table and in the equation?​

Answers

Answer:

see below

Step-by-step explanation:

The y intercept is when x =0  

The equation is y =2x+6

The equation is in the form y = mx+b.  It is the constant added to the equation.

In the table it is the y value when x =0

Please help me! I need to get this done but don't know how!

The polynomial x³+5x²-57x-189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If the width of the box is 15 in., what are the other two dimensions?

a. height: 19 in.
depth: 5 in.

c. height: 19 in.
depth: 7 in.

b. height: 21 in.
depth: 5 in.

d. height: 21 in.
depth: 7 in.

Answers

Answer:

Step-by-step explanation:

your answer would be b

Logx-1(343)=3 solve for base x

Answers

Answer:

should be 8 !

Step-by-step explanation:

it just is

I really need help with b and c

Answers

Answer:

Step-by-step explanation:

I dont know which b and c you are talking about, so...

3) b) 8, c) 19

4) b) 10, c) 16

Hope its helps u

Thank You

Please mark as brainliest

please help am stuck on this

write the set of positive even numbers that Is less than 15 using both the notations

Answers

Answer:

Let the set be X.

X = {x ∈ N  : 2x < 15}

X = {2, 4 , 6 , 8 , 10, 12 , 14}

What is 3.99408317124 rounded to the nearest tenth

Answers

Answer:

4

Hope that this helps!

ans this question plsssssssssssssssss

Answers

Answer:

0.000000302

Step By Step:

the usual form of 3.02×10−6 will be 0.000000302.

Answer:

4). 0.00000302

corecct answer

Solve the equation n3 = 8/125 for n n=______

Answers

Answer:

2/5

Step-by-step explanation:

How many feet is it from goal line to goal line on a regulation football field
that is 100 yards long? It is measured in the

A. tens
B. thousands
C. millions
D. hundreds

Answers

Answer:

D. hundreds

Step-by-step explanation:

if a football field is 100 yards long then it is 300 feet long and that is in the hundreds

I
7. The term "snowstorms of note" applies to all snowfalls over 6 inches. The snowfall amounts for
snowstorms of note in Utica, New York, over a four-year period are as follows:
7.1, 9.2, 8.0, 6.1, 14.4, 8.5, 6.1,6.8, 7.7,
21.5, 6.7, 9.0, 8.4, 7.0, 11.5, 14.1, 9.5, 8.6
What are the mean and population standard deviation for these data, to the nearest hundredth?
1) mean = 9.46; standard deviation = 3.74
3) mean = 9.45; standard deviation = 3.74
2) mean = 9.46; standard deviation = 3.85
4) mean = 9.45; standard deviation = 3.85

Answers

Answer: (1) mean = 9.46; standard deviation = 3.74

Step-by-step explanation:

ans this equation pls

Answers

Answer

625

if this helped give brainliest and thanks!!

Answer:

625

Step-by-step explanation:

[tex](-2)^{4}[/tex]* ([tex]\frac{5}{2}[/tex])^4

16 * 5^4/2^4

16 * 625/16

10000/16

625

qual alllllllllllllllllllllll

Answers

What dies that supposed to mean?
Answer is English:

The period of a wave often referred as the time period is the measure of time required by a wave for completing one cycle. However, frequency is the overall number of cycles occurring in unit time.

Answer in protogeuse:

O período de uma onda, muitas vezes referido como período de tempo, é a medida de tempo necessária para uma onda completar um ciclo. No entanto, frequência é o número total de ciclos ocorrendo em unidade de tempo.

If helped mark me the brainiest!!

se ajudou a me marcar o mais inteligente!!

Which statement is true about every rectangular pyramid?
Each lateral face has an area less than the area of the base.
At least two of the lateral faces are congruent.
Each lateral face has the same height.
At least one of the faces has a whole number base or height.

Answers

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

does anyone know how to do this ?

Answers

Answer:

i^85 = i

A way you can solve this is divide 85 by4

The remainder is one right? that means i^85 is the same as i^1. remember, i^1 = i.

I think it B it’s like simplifying imaginary numbers

POR is a right-angled triangle.
13 cm
5 cm
12 cm
Work out the size of angle POR.
Give your answer correct to 1 decimal place.
+ +
1
Total marks: 3

Answers

Answer:

As 3-4-5     5-12-13 is a right triangle

5^2 + 12^2 = 25 * 144 = 169 = 13^2

Not sure how POR is designated, but

cos theta = 12/13 = .923    theta = 22.6 deg

sin theta = 5/13 = .385   theta = 22.6 deg

Ranking brainliest if correct

Answers

Answer:

Hello! answer: 18

Step-by-step explanation:

AC = 27 DF = 9 those are both the bottom sides of the triangles so we can find AB with this info so... 27 ÷ 9 = 3 DE = 6 6 × 3 = 18 therefore AB = 18 hope that helps!

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