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Serggg [28]
3 years ago
12

A rock is dropped from the top of a tall building. How high is the building if it takes 3.25seconds for the rock to strike the g

round? Ignore the effects of air resistance. A) 169m B)15.9m C)51.8m D) 32.2m
Physics
1 answer:
romanna [79]3 years ago
5 0

Answer:

C)51.8m

Explanation:

Kinematics equation:

y=v_{oy}*t+1/2*g*t^2

in this case:

v_{oy}=0

y=1/2*9.81*3.25^2=51.8m

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Which statement is true? CTP hydrolysis can be a source of chemical energy. dATP is the most common source of chemical energy in
Gemiola [76]

1. Statement A is true.

When GTP is hydrolysed, the free energy of hydrolyses is used to power or drive reactions that are favourable energetically.

2. Statement B it true.

ATP is a complex chemical that gives energy for the activities in many living cells. During hydrolyses, chemical energy stored in the energy-rich phosphoanhydride is released. Hence its a common source of chemical energy in cells.

3. Statement C is false.

The hydrolyses of ATP to ADP in the presence of phosphate, releases one mole of ATP which is estimated to be -57Kj/mol not 14Kj/mol. Below is the equation;

ATP + H20 -----> ADP + Pi + Free energy.

4. Statement D is false.

GTP stands for guanosine triphosphate.

ATP stands for adenosine triphosphate

ADP stands for adenosine diphosphate.

3 0
4 years ago
If a cheetah can maintain a constant speed of 25 m/s, it will cover 25 meters every second. At this rate, how far will it travel
Ksju [112]
10 seconds 25m*10s= 250m
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5 0
4 years ago
The eyes of many older people have lost the ability to accommodate, and so an older person’s near point may be more than 25 cm f
tensa zangetsu [6.8K]

Answer:

Smaller refractive power

Explanation:

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A the person ages, the ciliary muscles of the eyes weakens and as a result the lens contracts and the formation of the image takes place behind the retina instead of forming at the retina.

Thus the near point also increases and the refractive power becomes smaller.

4 0
3 years ago
How old is the moon!
wolverine [178]

4.53 billion years

1.653 trillion days

39.68 trillion hours

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5 0
4 years ago
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Lilit [14]

Answer:

so that each component has the same voltage.

Explanation:

5 0
3 years ago
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