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kogti [31]
3 years ago
10

Plz help will mark the brainliest​

Physics
2 answers:
Vanyuwa [196]3 years ago
7 0
No
MARK ME BRAINLEST
fenix001 [56]3 years ago
3 0

Answer:

yesssssssssssssssssssssssssssssssssssss

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Comparativo entre a máquina a vapor de Neu carmen e James Watt!
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Answer:

jame watt

Explanation:

James Watt tiña máis importancia que outro home

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3 years ago
A copper wire has a square cross section 2.1 mm on a side. The wire is 4.3 m long and carries a current of 3.6 A. The density of
aleksley [76]

Explanation:

Below is an attachment containing the solution.

4 0
3 years ago
Two children who are bored while waiting for their flight at the airport decide to race from one end of the 20-m-long moving sid
QveST [7]

Answer: Phillipe wins the race

Explanation:

Given

Length of track=20 m

Velocity of Phillippe=2 m/s w.r.t sidewalk

Velocity of sidewalk=1.5 m/s

Rena velocity=2 m/s

Therefore absolute velocity of P is 2+1.5=3.5 m/s

Time taken by phillippe \frac{20}{3.5}+\frac{20}{3.5-1.5}

t_P=5.714+10=15.714 s

Time taken by rena

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as the time taken  by phillippe is less than rena therefore Phillippe wins the race.

8 0
3 years ago
Read 2 more answers
What is the de Broglie wavelength of an object with a mass of 2.50 kg moving at a speed of 2.70 m/s? (Useful constant: h = 6.63×
xxMikexx [17]

Answer:

9.82 × 10^{-35} Hz

Explanation:

De Broglie equation is used to determine the wavelength of a particle (e.g electron) in motion. It is given as:

λ = \frac{h}{mv}

where: λ is the required wavelength of the moving electron, h is the Planck's constant, m is the mass of the particle, v is its speed.

Given that: h = 6.63 ×10^{-34} Js, m = 2.50 kg, v = 2.70 m/s, the wavelength, λ, can be determined as follows;

λ = \frac{h}{mv}

  = \frac{6.63*10^{-34} }{2.5*2.7}

 = \frac{6.63 * 10^{-34} }{6.75}

 = 9.8222 × 10^{-35}

The wavelength of the object is 9.82 × 10^{-35} Hz.

4 0
3 years ago
Scientific models can be used for a variety of different purposes. Which of the following is not a possible use for a scientific
alex41 [277]
Options a to c can be the reasons for scientific models.

But to primarily answer scientific questions,that would require an empirical and experimental approach and not use of models.

Though after getting the answers, models can be built to further explain the answers.

<span>d. answer scientific questions.</span>
4 0
3 years ago
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