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Ivenika [448]
2 years ago
15

A battery has an electric potential of 1.5V and transfers 10.0 C between the two terminals. How much work was done?

Physics
1 answer:
bogdanovich [222]2 years ago
8 0

Answer:

15 Joules

Explanation:

work = charge x potential difference

= 10 x 1.5

= 15

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A truck initially traveling at a speed of 22 meters per second increases speed at a constant rate of 2.4 meters per second^2 for
Usimov [2.4K]
Thank you for posting your question here. The total distance traveled by the truck during the 3.2 seconds interval is 83 m. Below is the solution:

d = vit + 1/2 at^2
d = (22m/ s) (3.2s) + 1/2 (2.4m/ s^2) (3.2s)^2
d = 83 m 
Hope the answer helps. 
8 0
3 years ago
Two cars are moving towards each other and sound emitted by first car with real frequency of 3000 hertz is detected by a person
sertanlavr [38]

Answer:

 v ’= 21.44 m / s

Explanation:

This is a doppler effect exercise that changes the frequency of the sound due to the relative movement of the source and the observer, the expression that describes the phenomenon for body approaching s

           f ’= f (v + v₀) / (v-v_{s})

where it goes is the speed of sound 343 m / s, v_{s} the speed of the source v or the speed of the observer

in this exercise both the source and the observer are moving, we will assume that both have the same speed,

                v₀ = v_{s} = v ’

we substitute

               f ’= f (v + v’) / (v - v ’)

               f ’/ f (v-v’) = v + v ’

               v (f ’/ f -1) = v’ (1 + f ’/ f)

               v ’= (f’ / f-1) / (1 + f ’/ f) v

               v ’= (f’-f) / (f + f’) v

let's calculate

                v ’= (3400 -3000) / (3000 +3400) 343

                v ’= 400/6400 343

                v ’= 21.44 m / s

3 0
2 years ago
What do solutions and colloids have in common
Andreyy89
I believe thye answer is  either d or c

6 0
3 years ago
Read 2 more answers
I need help with question two
zaharov [31]
I can't see numbers here, so here are all the answers:
1) the frequency is c/λ = 3e8/556e-9 = 5.39e14Hz
2) light travels at <span>299,792,458 m/s.  So in nanoseconds it's 0.299792458m.  This is about 1/3 of a meter which is about one foot.
3) length is L = ct = (</span>299,792,458 m/s)(6e-15) = 1.799e-6m or 1.799μm

6 0
2 years ago
Newton’s first law states that if an objects velocity is changing a _____ must be acting on it.
klio [65]
<h3>Answer: </h3>

(a)

<h3>Explanation </h3>
  • Newtons First Law can be written as the formula

f = ma

since acceleration is the changing of velocity as its formula is

\frac{v2 - v1}{t}

Thus, a force must be acting on an accelerating/decelerating object

  • It is not mass as the mass does not act on the object but rather the mass is acting on the surface of the ground.

  • Changing velocity is already acceleration

  • inertia is the term used to describe Newtons first law

6 0
3 years ago
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