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neonofarm [45]
3 years ago
5

A physical (beam) is used to measure?​

Physics
2 answers:
murzikaleks [220]3 years ago
7 0

Answer:

the weight of something, that is

Explanation:

to compare weights

Kisachek [45]3 years ago
6 0

Answer:

mass of a object is the answer

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. The penalties for a person's second DUI conviction include completion of __________ hours of DUI school.
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A cell phone weighing 80 grams is flying through the air at 15 m/s. What is its kinetic energy
Contact [7]

Answer:

The kinetic energy of the cell phone is 9J

Explanation:

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KE= 1/2m(v)²

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8 0
3 years ago
You use 8x binoculars were used on a warbler (14cm long) in a tree 18cm away. What angle (in degrees) does the image of the warb
mafiozo [28]

Answer:

The angle it subtend on the retina is  \theta_z = 0.44586^o    

Explanation:

From the question we are told that

     The length of the warbler is  L = 14cm = \frac{14}{100} = 0.14m

      The distance from the binoculars is    d = 18cm = \frac{18}{100} = 0.18m

        The magnification of the binoculars is  M =8

Without the 8 X binoculars the  angle made with the angular size of the object  is mathematically represented as

          \theta = \frac{L}{d}

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           = 0.007778 rad

Now magnification can be represented mathematically as

         M = \frac{\theta _z}{\theta}

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      \theta_z = M * \theta

=>    \theta_z =8 * 0.007778

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Generally the conversion to degrees can be mathematically evaluated as

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7 0
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