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3 years ago

Elements in the same______ are more chemically similar. THIS IS URGENT!!!!

Physics

2 answers:

eimsori [14]3 years ago

5 0

They are in the same group

kifflom [539]3 years ago

3 0

Answer:

group

Explanation:

And vote me brainliest

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What is a wave frequency? A. the number of waves that pass a fixed point in a fixed period of time B. the speed that a wave is p

Tanzania [10]

Frequency - number of waves (vibrations, revolutions, of cycles) that pass a given point per unit time.

the correct answer should be A

hope this helps :)

8 0

3 years ago

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Heyy wwjbsiejwwbwndnenjssnanwj

zlopas [31]

Answer:

wassup bro

Explanation:

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3 years ago

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The Apollo Lunar Module was used to make the transition from the spacecraft to the Moon's surface and back. Consider a similar m

ivolga24 [154]

Answer:

v=6.05 m/s

Explanation:

Given that,

Th initial velocity of the lander, u = 1.2 m/s

The lander is at a height of 1.8 m, d = 1.8 m

We need to find the velocity of the lander at impact. It is a concept based on the conservation of mechanical energy. So,

$\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=W\\\\\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=F\times d\\\\\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=mgd\\\\\dfrac{1}{2}m(v^2-u^2)=mgd\\\\v^2-u^2=2gd$

v is the velocity of the lander at the impact

g is the acceleration due to gravity on the surface of Mars, which is 0.4 times that on the surface of the Earth, g = 0.4 × 9.8 = 3.92 m/s²

So,

$v=\sqrt{u^2+2gd} \\\\v=\sqrt{(1.2)^2+2\times 9.8\times 1.8} \\\\v=6.05\ m/s$

So, the velocity of the lander at the impact is 6.05 m/s.

6 0

3 years ago

A wire carries a current of 6.91 A in a direction that makes an angle of 19◦ with the direction of a magnetic field of strength

g100num [7]

Answer:

4.454 N.

Explanation:

The force on a current carrying conductor in a magnetic field is given as,

F = BILsinФ................... Equation 1

Where F = magnetic Force, B = magnetic Field, I = current, L = Length of the wire, Ф = The angle between the conductor and the Field.

Given: B = 0.289 T, I = 6.91 A, L = 6.7 m, Ф = 19°

Substitute into equation 1

F = 0.289(6.91)(6.7)sin19

F = 0.289×6.91×6.7×0.33

F = 4.454 N.

Hence the magnetic force = 4.454 N.

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4 years ago

Examine the layers of rock. Identify and explain which layer contains the youngest fossils.

Reika [66]

Ok. what rock tho. cause all the rocks i have is all bleh and boring

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3 years ago

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