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3 years ago

Question 1 The orange line is measuring the

Physics

1 answer:

11111nata11111 [884]3 years ago

4 0

Answer:

Approximately 4.5 square miles

Explanation:

(surrounding van Nuys and sepulveda stations) and one measuring approximately 2.85 square miles ( surrounding north Hollywood Station)

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Energy transferred as heat occurs between two bodies in thermal contract when they differ in which of the following properties?

Hatshy [7]

Temperature is the answer

8 0

3 years ago

A car travels in a straight line with an average velocity of 80 km/h for 2.5 h and then with an average velocity of 40 km/h for

maks197457 [2]

Answer:

260 km

65 km/hr

Explanation:

The displacement of an object is the distance moved by that object in a particular direction.

velocity = displacement / time, therefore,

Displacement = velocity * time.

Total displacement for the 4 HR trip = displacement for 2.5 hr + displacement for 1.5 hr

total displacement = (80 * 2.5) + (40 * 1.5)

Total displacement = 200 + 60

Total displacement = 260 Km

average velocity for the total trip = total displacement / total time taken

average velocity = 260 km/ 4 hr

average velocity = 65 km/hr

7 0

3 years ago

A chain of length L has a mass of m which is uniformly distributed. When it is placed on a smooth horizontal table, 1/4 of its l

krok68 [10]

Gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

<h3>What is gravitational potential energy?</h3>

The energy that an item has due to its location in a gravitational field is known as gravitational potential energy.

Length of hanging part, L/4

The gravitational potential energy is;

Work = Gravitational potential energy

Work done =force×displacement

$\rm W = \frac{Mg}{3} \times \frac{L}{8} \\\\ W = \frac{MgL}{24}$

Hence, gravitational potential energy has changed from the beginning to the chain just sliding away from the table willl be MgL/24.

To learn more about the gravitational potential energy, refer;

brainly.com/question/3884855

#SPJ1

6 0

2 years ago

Light Emitting Diodes (LEDs) are semiconductor devices that emit light at specific wavelengths without emitting at any other wav

Pepsi [2]

Answer:

Δx = 2.76 x 10⁻³ m = 2.76 mm

Explanation:

The distance between any two consecutive dark or consecutive bright fringes is given by:

Δx = λL/d

where,

Δx = distance between first and second dark fringe = ?

λ = wavelength of light = 546.1 nm = 546.1 x 10⁻⁹ m

L = distance between slits = 1.35 m

d = slit separation = 0.267 mm = 2.67 x 10⁻⁴ m

Therefore,

Δx = (546.1 x 10⁻⁹ m)(1.35 m)/(2.67 x 10⁻⁴ m)

8 0

3 years ago

A sodium vapor lamp omit waves with the frequency of 5.26x10^14 Hz. What is the wavelength of light?

koban [17]

Answer:

$\lambda=5.70\times 10^{-7}\ m$

Explanation:

The frequency of a sodium vapor lamp, $f=5.26\times 10^{14}\ Hz$

We need to find the wavelength of light. The relation between wavelength, frequency and speed of light is given by :

$c=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{5.26\times 10^{14}}\\\\\lambda=5.70\times 10^{-7}\ m$

So, the wavelength of light is equal to $5.70\times 10^{-7}\ m$ .

6 0

3 years ago