2 years ago

What do the vertical columns in the periodic table indicate?

Physics

2 answers:

Lesechka [4]2 years ago

6 0

Answer:

It is D !

Explanation:

I took the test.

romanna [79]2 years ago

3 0

The correct answer is

D. Groups and Families

I did the quiz nd this was the right answer

Hopes this helps :)

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Mass, size and color are examples of ___

BigorU [14]

The short answer (and the long one for that matter) is physical properties of chemicals. If you are being marked by a machine, likely the answer is going to be physical properties.

6 0

2 years ago

While a balloon is being filled, if the temperature of the air in the balloon decreases, what happens to its volume?

Ugo [173]

Why is it always balloons?
anyways so the balloon volume goes somewhere else when it shrinks because the balloon is losing air i think

4 0

3 years ago

Read 2 more answers

The acceleration of a particle is given by a = 3t – 4, where a is in meters per second squared and t is in seconds. Determine th

Genrish500 [490]

Answer:

$v=0.04m/s\\$

$s=-28.592m\\$

Explanation:

$a = 3t-4$

$v(t)=\int\limits^t_0 {a(t)} \, dt =3/2*t^{2}-4t+v_0\\$

if t=3.6s and initial velocity, v0, is -5m/s

$v=0.04m/s\\$

$s(t)=\int\limits^t_0 {v(t)} \, dt =1/2*t^{3}-2t^{2}+v_0*t+s_0\\$

if t=3.6s and the initial displacement, s0, is -8m:

$s=-28.592m\\$

5 0

2 years ago

A Ping-Pong ball has a diameter of 2.55 cm and average density of 0.116 g/cm3 . What force would be required to hold it complete

Mrac [35]

Answer:

F = 0.075 N

Explanation:

given,

diameter of ping pong ball = 2.55 cm

average density of the ball = 0.116 g/cm³

Force require to hold the ball completely submerged= ?

Volume of the ball

$V = \dfrac{4}{3} \pi r^3$

$V = \dfrac{4}{3} \pi (\dfrac{2.55}{2})^3$

V = 8.63 cm³

density of water = 1 g/cm³

force required to keep the ball submerged is equal to

$F = \rho_w V_w g - \rho_b V g$

$F = 1\times 8.63\times g - 0.116 \times 8.63 \times g$

F = 7.63 x 9.8 x 10⁻³

F = 0.075 N

Force required to keep the ball inside the water is equal to 0.075 N

7 0

3 years ago

Consider the circuit shown here. Find the current at EACH resistor.

Kisachek [45]

Answer:
Option B

Explanation:
=> Current = Voltage / Resistance
I = V/R
1. For the first resistor: I = 40/100
I = 0.4 A
2. For the second resistor: I = 40/360
I = 0.11 A

4 0

2 years ago