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nikitadnepr [17]

3 years ago

15

A stone drops from a 5m tall cliff.If all its potential energy gets converted into kinetic energy.Calculate the speed of the sto

ne just before it touches the bottom of the cliff.(g=10m/s^2)

1 answer:

PSYCHO15rus [73]3 years ago

5 0

Answer

50 meter per second square

Step-by-step explanation:

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A statue casts a shadow that is 9 ft long. A boy that is 4 ft tall casts a shadow that is 6 ft long. How tall is the statue?

kumpel [21]

Answer:

6 feet tall.

Step-by-step explanation:

The boy is 4 ft tall, but he casts a 6 ft long shadow. You need to find how long a shadow would be if a person/thing was just 1 ft tall.

To do this, you would need to divide 4 by 4, and 6 by 4 as well.

6/4 is 1.5, or 1 and a half.

If a person (or a thing) is 1 foot tall, the statue will cast 1 and a half feet long shadow.

The statue casts a 9 ft long shadow.

Since we already figured out 1 ft = 1 and 1/2 ft shadow, and since the statue casts a 9 foot long shadow, you need to divide 9 by 1.5.

(You'll get 6.)

This means that the statue is 6 feet tall, and it casts a 9 foot long shadow.

6 0

3 years ago

Can some one help I am stumped?<br><br> Please look at both images.

steposvetlana [31]

Answer: The first question is the first option and the second one is is explained below:

Step-by-step explanation:#2

When you are doing Dilation, You have to rotate the paper or whatever

about 3 times so and then make your mark as needed.

4 0

3 years ago

Type the correct answer in the box. Use numerals instead of words.

blsea [12.9K]

Answer:

√(-2)²+12+14=√16+14=4+14=18

Step-by-step explanation:

6 0

4 years ago

I need help asapppppoooo

9966 [12]

Answer:

This looks rly familiar

Step-by-step explanation:

I took this test and the answer is C

5 0

4 years ago

Find the actual sum of 1 3/4 + 1 5/8 to determine how much David grew in two years. Explain how you know your answer is reasonab

svetoff [14.1K]

Answer:

$3\frac{3}{8}$

Step-by-step explanation:

Find the sum

$1\frac{3}{4} +1\frac{5}{8}$

we know that

$\frac{3}{4}=\frac{6}{8}$

substitute

$1\frac{6}{8} +1\frac{5}{8}$

step 1

Separate the mixed number into a whole number and a fraction number

$1+\frac{6}{8} +1+\frac{5}{8}$

step 2

Group the whole numbers an the fraction numbers

$(1+1)+(\frac{6}{8} +\frac{5}{8})$

step 3

Combine like terms

$(2)+(\frac{11}{8})$

Remember that

$\frac{11}{8}=\frac{8}{8}+\frac{3}{8}=1+\frac{3}{8}$

substitute

$2+1+\frac{3}{8}$

$3+\frac{3}{8}=3\frac{3}{8}$

The answer is reasonable

Because

I know that 1 3/4 < 2 and 1 5/8 < 2

so

The sum of both numbers must be less than 4

6 0

3 years ago