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Olegator [25]
3 years ago
11

Every year, new records in track and field events are recorded. Let's take a historic look back at some exciting races.

Physics
2 answers:
marissa [1.9K]3 years ago
6 0

Answer: His average speed (in m/s) for the race was <u><em>10.08 m/s</em></u>

Explanation:

Given data

Total distance traveled , D= 100 meter

Total time taken , T= 9.92 seconds

>The average speed(V_{avg} ) of an object is the total distance traveled by the object divided by the total time taken to cover that distance .i.e.,

V_{avg}=\frac{D}{T}=\frac{100}{9.92}\, \frac{m}{s}=10.08\: \frac{m}{s}

Thus his average speed (in m/s) for the race was <u><em>10.08 m/s</em></u>

masya89 [10]3 years ago
5 0
V=r/t
Speed equals displacement over the time

V=100/9.92=10.08ms^-1
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What year did Badminton become a full-medal Olympic sport?
Basile [38]

Answer:

1992

Explanation:

Badminton made its debut as a demonstration sport at the 1972 Olympic Games in Munich. It was not until the 1992 Games in Barcelona that it was officially included on the Olympic programme, with men's and women's singles and doubles events.

6 0
3 years ago
Sphere A has a charge of +2 x 10 to the power of -6 coulomb and is brought into contact with a similar sphere, B which has a cha
Setler [38]
When sphere A and B are brought in contact and separated, charge on each sphere becomes [2x10^-6 + (-4x10^-6)]/ 2 = -1x10^-6 C.

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7 0
3 years ago
A parcel of land is in the shape of an isosceles triangle. The base has a length of 425 ft.; the other sides, which are of equal
kogti [31]

Answer:

The answer to your question is 636.6 ft    

Explanation:

Data

base = 425 ft

angle = 39°

See the picture below

1.- Divide the triangle to get two right triangles.

    Now the superior angle will measure 19.5° and the opposite side will measure 212.5 ft

2.- Use the trigonometric function sine to find the hypotenuse

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solve for hyp

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Result

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4 0
3 years ago
PLZ ANSWER ASAP IF YOU KNOW THIS...At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they
Maslowich
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8 0
3 years ago
The tow spring on a car has a spring constant of 3,086 N / m and is initially stretched 18.00 cm by a 100.0 kg college student o
sdas [7]

Answer:

The velocity of the skateboard is 0.774 m/s.

Explanation:

Given that,

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Potential energy of the spring, P_f=20\ J

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It is a case of conservation of energy. The total energy of the system remains conserved. So,

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\dfrac{1}{2}\times 3086\times (0.18)^2=\dfrac{1}{2}mv^2+20

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So, the velocity of the skateboard is 0.774 m/s.

7 0
3 years ago
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