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umka21 [38]
3 years ago
7

What does Newtons first law of motion say about objects at rest and objects in motion?

Physics
1 answer:
Alborosie3 years ago
6 0

Answer:

Explanation:

an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

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When voltage sources are connected in series, the total voltage is equal to the algebraic sum of the individual voltages?
Vesnalui [34]
According to the third rule of series circuit, the total voltage is equal to the sum of individual voltages. These proves that the statement above "<span>When voltage sources are connected in series, the total voltage is equal to the algebraic sum of the individual voltages?" is TRUE.</span>
7 0
4 years ago
Jack and Nas decided to have a race from their houses to the park to know who runs the fastest. Jack whose house is 15 kilometer
Anettt [7]

Answer:

the Jack speed is greater than the Nas speed  

   v₁ = 2.08 m / s >  v2 = 1.85 m / s

Explanation:

For this exercise we can find the average speed of each of the boys, the average speed is defined as the displacement in the time interval

          v = x / t

Jack.

It tells us that it travels x = 15 km in a time of t = 2 h

let's reduce the magnitudes to the SI system

     x = 15 km (1000 m / 1 km) = 15 10³ m

     t = 2 h (3600 s / 1 h) = 7200 s

let's calculate

     v₁ = 15 10³/7200

     v₁ = 2.08 m / s

Nas travels a distance of x = 10 km in a time of t = 1.5 h

      x = 10 km = 10 10³ m

      t = 1.5 h (3600s / 1h) = 5400 s

let's calculate the speed

     v2 = 10 10³/5400

      v2 = 1.85 m / s

From these results we can see that the Jack speed is greater than the Nas speed

4 0
3 years ago
A scientist discovered an elementary particle paired with another particle. It has a positive charge equal to two–thirds of the
julia-pushkina [17]
W boson has +1e or - 1e charge, Z boson has 0 charge.

Leptons have +1e, -1e or 0 charge.

Photons have 0 charge.

Only quarks have a charge of +2/3e or -1/3e of an electron charge. 

To be exact, only up-type quarks (Up, Down and Top quarks) have a +2/3e or two thirds of an electron charge.

So the correct answer is D) Quark.
6 0
3 years ago
1 a rectangular block of steel measures 4cm * 2cm* 1.5cm. its mass is 93 .6g
damaskus [11]

Answer:

xjsjsiaiwdjajajqjiwjwjeueie

5 0
4 years ago
Read 2 more answers
PLEASE HURRYYYYY!!
lara [203]

Answer:1st

Explanation:and object in motion stays in motion unless acted upon by another object

5 0
3 years ago
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