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fenix001 [56]
3 years ago
6

An electric field is associated with every:____.

Physics
1 answer:
Scorpion4ik [409]3 years ago
7 0

Answer:

b. time-dependent magnetic field.

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Which characteristics is common in mature rivers river
amm1812
It channels erode wider fed by many tributaries and has more discharge and is less steep
3 0
3 years ago
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A rock falls from a tower that is 320 feet high. As it is​ falling, its height is given by the formula h equals 320 minus 16 t s
RSB [31]

Answer:

a. 4.5secs

Explanation:

From the question, the equation describing the height is given by

h(t)=320-16t^{2}\\

at the point when the rock hit the ground, the height,h will be zero.

Hence we can have

h(t)=320-16t^{2}\\\\at  h(t)=0\\0=320-16t^{2}\\hence \\320=16t^{2}\\t^{2}=\frac{320}{16}\\ t^{2}=20\\t=\sqrt{20}\\ t=4.47secs\\t=4.5sec\\

hence the rock will hit the ground in 4.5secs

4 0
4 years ago
What is the frequency of a sound wave having a velocity of 341 meters/second and a wavelength of 0.8 meters?
Brums [2.3K]
We know, Frequency = speed / wavelength 
f = 341 / 0.8
f = 426.25 Hz

In short, Your Answer would be 426.25 Hz

Hope this helps!
6 0
3 years ago
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Einstein and Lorentz, being avid tennis players, play a fast-paced game on a court where they stand 20.0 m from each other. Bein
igor_vitrenko [27]

Answer:

A) 185.6 J

B) 9.396 x 10^14 J

C) 4x10^7 m/s

D) 20 m

E) 9.09x10^-8 sec

F) 9.09x10^-8 sec

Explanation:

Detailed explanation and calculation is shown in the image below

3 0
3 years ago
In the chemical reactions of chemosynthesis, microscopic organisms use heat and inorganic compounds to produce food for themselv
zhuklara [117]

D. endothermic

Explanation:

Since the chemosynthesis reaction uses up heat and other inorganic compounds to produce food for themselves, the process is endothermic.

  • In an endothermic reaction, heat is absorbed from the surrounding.
  • The surround will then become colder at the end of the reaction.
  • Since the chemosynthesis reaction uses up heat, it is an endothermic reaction.
  • Exothermic reactions liberates heat to the surrounding.
  • The surrounding becomes hotter at the end of the change.

learn more:

Enthalpy changes brainly.com/question/10567109

#learnwithBrainly

7 0
3 years ago
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