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iVinArrow [24]
3 years ago
9

Answer this plsss A mobile phone operates at 900 MHz. What wavelength does it use?

Physics
1 answer:
Aleks [24]3 years ago
7 0

Answer:

The wavelength = 0.3333 meters at 900 MHz, therefore, = /4 = 0.08333 meters.

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A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 m
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It would take 2 hours
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3 years ago
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What is the final electron receptor in the light reaction of photosynthesis?
Mumz [18]

Answer: Nicotinamide adenine dinucleotide phosphate (NADP)

Explanation:

<u>Photosynthesis</u> is a metabolic process in which light is transformed into stable chemical energy, converting inorganic matter into organic matter.  

This process is mainly divided in two parts:  

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In the case of light reactions, the light is used by the plant to produce organic energy molecules, being the coenzyme Nicotinamide adenine dinucleotide phosphate (NADP) the final electron acceptor.

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7 0
4 years ago
I'm not sure what to use help me please
DaniilM [7]

Answer:

Mass of the ring is 2.5 kg.

Given:

Moment of inertia of a ring = 0.4 kg.m^{2}

Radius = 40 cm = 0.4 m

To find:

Mass of the ring = ?

Formula used:

I = m r^{2}

Where I = moment of inertia

r = radius of the ring

m = mass of the ring

Solution:

Moment of inertia of a ring is given by,

I = m r^{2}

Where I = moment of inertia

r = radius of the ring

m = mass of the ring

0.4 = m ×0.4×0.4

m = 0.4/(0.4×0.4)

m = 1/0.4

m = 2.5 kg

Mass of the ring is 2.5 kg.

5 0
3 years ago
A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. after a short rest at the lake, she hi
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Let's choose east as positive x-direction and south as positive y-direction. We can resolve the two displacement along these two axes:

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d_{1x}=-(3.5 km)( cos 55^{\circ})=-2.01 km

d_{1y}=(3.5 km)( sin 55^{\circ})=2.87 km

- Displacement 2 (2.7 km, 16^{\circ} east of south

d_{2x}=(2.7 km)( sin 16^{\circ})=0.74 km

d_{1y}=(2.7 km)( cos 16^{\circ})=2.60 km

So, the total components on the two directions are

d_x = -2.01 km+0.74 km=-1.27 km

d_y=2.87 km+2.60 km=5.47 km

And the magnitude of the hiker's resultant displacement is

d=\sqrt{(1.27 km)^2+(5.47 km)^2}=5.6 km

8 0
3 years ago
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A hailstone traveling with a velocity of 43 meters/second comes to a virtual stop 0.28 seconds after hitting water. What is the
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Magnitude of acceleration = (-43 m/sec) / (0.28 sec)

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5 0
3 years ago
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