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densk [106]
3 years ago
13

Directions: Consider a 2-kg bowling ball sits on top of a building that is 40 meters tall. It falls to the ground. Think about t

he amounts of potential and kinetic energy the bowling ball has:
What is the kinetic energy of the ball as it is half way through the fall?

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

Answer:

392 Joules

Step-by-step explanation:

You might be interested in
2sinx / cos3x = tan3x - tanx -verify the identity-
scoundrel [369]

Answer:

cos3x+tan3x=0  

⟹cos3x=−tan3x

⟹cos3x=−sin3xcos3x

⟹cos23x=−sin3x

⟹1−sin23x=−sin3x

⟹sin23x−sin3x−1=0

This is a quadratic equation in sin3x.

sin3x=−(−1)±(−1)2−4×1×(−1)−−−−−−−−−−−−−−−−−√2×1

sin3x=1±5–√2

If x takes real values, the upper sign must be rejected.

sin3x=1−5–√2

⟹3x=nπ+(−1)nsin−11−5–√2

⟹x=13[nπ+(−1)nsin−11−5–√2]

Step-by-step explanation:

Hope this kind of helps

6 0
2 years ago
To make concrete, the ratio of cement to sand is 1 : 3. If cement and sand are sold in bags of equal mass, how many bags of ceme
kotykmax [81]

Answer:

5 bags of cement are required.

Step-by-step explanation:

Since to make concrete, the ratio of cement to sand is 1: 3, if cement and sand are sold in bags of equal mass, to determine how many bags of cement are required to make concrete using 15 bags of sand the following calculation must be done:

Cement = 1

Sand = 3

3 = 15

1 = X

15/3 = X

5 = X

Therefore, 5 bags of cement are required.

3 0
3 years ago
As a medical examiner, you are asked for many reports related to types of death. You are initially asked for a report on the tem
iVinArrow [24]

The function is updated by calculating the composite function h(f(c)), where f = 1.8c + 32

<h3>How to update the function?</h3>

The function is given as h(c)

Where

  • c represents the temperature in Celsius
  • h(c) represents the number of heat-stroke deaths per thousand people

When a temperature in Celsius is converted to Fahrenheit, the conversion equation is:

F = 1.8C + 32

This means that we update the function by calculating the composite function h(f(c)), where f = 1.8c + 32

<h3>How the graph would be transformed?</h3>

In (a), we have:

h(f(c)) and f = 1.8c + 32

Substitute f = 1.8c + 32 in h(f(c))

h(1.8c + 32)

The above means that:

  • The graph would be vertically stretched by a factor of 1.8
  • Then the graph would be shifted up by 32 units

Read more about function transformation at:

brainly.com/question/1548871

#SPJ1

3 0
2 years ago
I need the right answer please
Luda [366]
The right answer is not among those offered. The domain is
.. {-9, -6, 4, 7}

___
The 4th selection {4, 7} is the best of those offered, but it is not correct.

6 0
3 years ago
Which is the best estimate of the area of the figure in square centimeters
laila [671]

Answer:

38.28 cm = D. 38

Step-by-step explanation:

Area of the Rectangle: l x w

Length: 6 cm

With: 4 cm

Area = 4 x 6

Area of Rectangle: 24 cm

Area of the Triangle: lw(1/2)

Length: 4 cm

Width: 4 cm

Area: 4 x 4 = 16 x 1/2 = 8

Area of Triangle: 8 cm

Area of the Circle: pi x r^2 x 1/2

Radius: 2 cm

Pi: 3.14

Area: 3.14 x 2^2

Area: 3.14 x 4 = 12.56

Area of Circle: 12.56 x 1/2

Lastly, you add them all together:

24 + 8 + 6.28 = 38.28 cm

4 0
3 years ago
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