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3 years ago

A bird can fly 25 km/h. How long does it take to fly 15 km?

1 answer:

5 0

25 km/h means that 15 kilometers will be 15/25ths of an hour. Therefore, 3/5 of an hour is 36 minutes, so it would take 36 minutes to fly that distance.

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NBAのバスケットボールコートのサイズは

Marysya12 [62]

28.65m x 15.24m

Explanation:

The size of a basketball court in the NBA is usually 28.65m x 15.24m giving a total court area of 436.62m².

The NBA is the acronym for National Basketball Association. It comprises of several teams from across United states and Canada in basketball league.

The game is played by hand with a target basket.
For each successive throw into the basket, 1 or 2 or 3 points can be awarded.
In feets the dimensions are 94 by 50 feet
From the dimension we can accurately say that a basketball court is rectangular in shape.
James Naismith is credited with the invention of the game of basketball

learn more:

Basketball jump brainly.com/question/11222255

#learnwithBrainly

6 0

3 years ago

An electric current through neon gas produces several distinct wavelengths of visible light. What are the wavelengths (in nm) of

MA_775_DIABLO [31]

Answer:

Explanation:

If a be grating element

a = 1 x 10⁻² / 11000

= .0909 x 10⁻⁵

= 909 x 10⁻⁹ m

for first order maxima , the condition is

a sinθ = λ where λ is wavelength

909 x 10⁻⁹ sin 49.67 = λ₁

λ₁ = 692.95 nm .

λ₂ = 909 x 10⁻⁹ sin 50.65

= 702.91 nm

λ₃ = 909 x 10⁻⁹ sin 52.06

= 716.88 nm

λ₄ = 909 x 10⁻⁹ sin 52.89

= 724.90 nm

692.95 nm , 702.91 nm , 716.88 nm , 724.90 nm .

4 0

3 years ago

Describe the role of observations in scientific endeavor and explain the characteristics of good observations.

koban [17]

Observations are used in order to collect data and record a variety of interesting or useful key points about the subject or specimen in observation. These observations, if made well, can be recorded and used to supplement a hypothesis.

3 0

3 years ago

HELP PLEASE DUE IN 3 MINUTES!!!! 60 POINTS

g100num [7]

Answer:

i think rocks towards is correct answer

7 0

3 years ago

Read 2 more answers

With the switch open, roughly what must be the resistance of the resistor on the right for the current out of the battery to be

jeyben [28]

Question:

Assumptions

Voltage of battery = 24 V

Resistance on the right,20Ω parallel to 10 Ω resistor

Answer:

For the current out of the battery to be the same as when the switch was opened with the switch closed, the resistance on the resistor on the right must be approximately 20/3 Ω

Explanation:

We note that the switch in the assumption is on the same line as the 20 Ω resistor.

With a voltage of 24 V, and the switch closed, we have;

Total resistance = $\frac{1}{\frac{1}{10} +\frac{1}{20} } = \frac{20}{3} \Omega$

Current out of voltage, I = Voltage/(total resistance)

= 24 ÷ 20/3 = 24 × 3/20 = 18/5 A

Therefore, with the switch opened, we get

Resistance on the right = Initial total resistance $= \frac{20}{3} \Omega$

Therefore, with the switch opened, the resistance on the resistor on the right must be approximately equal to the resultant resistance of the two resistances in parallel.

6 0

3 years ago