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inessss [21]
2 years ago
10

PLEASE HELP!!! I'm dumb lol.

Physics
2 answers:
Len [333]2 years ago
7 0

Answer:

A theory or hypothesis does not necessarily provide an accurate scientific explanation to any topic but predicts what can happen.

Explanation:

maksim [4K]2 years ago
6 0

Answer:

The explanation given by a theory is well tested and supported by many observations and hypotheses.

Explanation:

EDG 100%

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How does free energy challenge the scientific definition of energy?
gtnhenbr [62]
<span>Free Energy is a thermodynamic quantity given by the subtraction between the internal energy of a system and the product of its absolute temperature and entropy.
</span><span> In physics, the ability to do work.
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I may not be completely sure but compare those 2 things together and you should find your answer.
7 0
3 years ago
What hall voltage is produced by a 0.200-t field applied across a 2.60-cm-diameter aorta when blood velocity is 60.0 cm/s?
amm1812
The hall voltage will be calculated using the formula:

E = Blv

where: 

>Hall voltage: E = ?
>Magnetic field:
               B = 0.200 Tesla or Wb/m^2
>Width of conductor or Diameter of Aorta:
               l = 2.60 cm, converting to meter = .0260 m
>Velocity of charge flowing:
              v = 60 cm/s, converting to meter = 0.6 m/s

Substituting the given :

E = (0.200 Wb/m^2) * (0.260 m) * (0.6 m/s)
E = (0.200 Wb/m^2) * (0.156 m^2/s)
E = 0.0312 Wb/s

Since 1 volt = 1 Wb/s then,

E = 0.0312 V or 31.2 mV
8 0
3 years ago
A runner achieves a velocity of 11.1 m/s nine seconds after he begins. What is his acceleration
Delvig [45]

Answer:

=1.23m/s^{2}  (2 decimal places

Explanation:

6 0
2 years ago
Read 2 more answers
A model railroad train travels at a constant speed of 8 cm/s . How far would the train travel in one minute ?
Furkat [3]

Answer:

Answer:

480cm or 0.48m

Explanation:

Given parameter:

Speed of the train = 8cm/s

time of travel = 1minute

Unknown:

Distance traveled = ?

Solution:

Speed is the rate of change of distance with time. This suggests that mathematically;

         Speed =  

       Distance covered = speed   x   time

Now to solve for the distance;

 Convert the time to seconds;

             60seconds = 1 minute

 Distance covered = 8cm/s  x 60s = 480cm

Distance covered is 480cm or 0.48m

7 0
3 years ago
Two magnets are held apart. Once released, the South Pole of one magnet moves toward the North Pole of another magnet until the
tresset_1 [31]

Answer:

Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.

Explanation:

easy

6 0
3 years ago
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