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Reil [10]
3 years ago
11

elements found in the same ______ have similar chemical properties. What should go in the blank? Row or column?

Physics
1 answer:
Temka [501]3 years ago
3 0
The answer is Column, however if you want to know the scientific word for it, it is also known as a group

(extra fact, a row is called a period)
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A ball that is attached to a string travels in a horizontal, circular path, as shown in Figure 1. At time t0 , the ball has a sp
Levart [38]

Answer:

F₁ = 4 F₀

Explanation:

The force applied on the string by the ball attached to it, while in circular motion will be equal to the centripetal force. Therefore, at time t₀, the force on ball F₀ is given as:

F₀ = mv₀²/r   --------------- equation (1)

where,

F₀ = Force on string at t₀

m = mass of ball

v₀ = speed of ball at t₀

r = radius of circular path

Now, at time t₁:

v₁ = 2v₀

F₁ = mv₁²/r

F₁ = m(2v₀)²/r

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using equation (1):

<u>F₁ = 4 F₀</u>

5 0
3 years ago
A wave changing shape when passing through an opening is an example of what?
igomit [66]
It is diffraction !!
7 0
3 years ago
A suspension bridge with weight uniformly distributed along its length has twin towers that extend 65 meters above the road surf
Fynjy0 [20]

Answer:

16.25 m

Explanation:

we know that the equation pf parabola

y=kx^2

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65=k600^2

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now the equation is

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we have to find the value of y at x=300m

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4 0
3 years ago
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Softa [21]

Answer: actually to solve this u must know what 3.2m/s2 is..do u know it ??...wel let me tell...3.2m/s2 means that in every second the speed of the body increases by 3.2m/s..so if it acts for 6.8 seconds..increase in speed will be 3.2*6.8   however note that this is the increase in speed.. have to change this in km/hr & add this to the initial speed(27km/hr) to get the answer....hope this has cleared ur doubts....

Explanation:

6 0
3 years ago
What is the relationship between the force and the period in a mass hanging on a spring oscillation and why?
BabaBlast [244]

Explanation:

Period of a mass on a spring is:

T = 2π√(m/k)

T is a function of only m and k.  So the period is independent of force.

5 0
3 years ago
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