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3 years ago

A cat is trying to cross the street. Its velocity v as a function of time t is given in the graph below where

Physics

2 answers:

bija089 [108]3 years ago

8 0

Answer:

3.8

Explanation:

Vesna [10]3 years ago

5 0

Answer:

rightwards is the positive velocity

Rightwards is the positive elicitation:

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Which element has the greatest number of valence electrons?

nalin [4]

Answer: Option B) oxygen (O)

Explanation:

The number of valence electrons in an element refers to the number of electrons in its outermost shell.

Hence, for each of the given elements, they are as follows:

- Phosphorus (P) has an atomic number of 15, with an electronic configuration of 1s2, 2s2 2p6, 3s2 3p3. Hence, it has 5 valence electrons.

- Oxygen (0) has an atomic number of 8, with an electronic configuration of 1s2, 2s2 2p6. Hence, it has 6 valence electrons.

- Sodium (Na), has an atomic number of 11, with an electronic configuration of 1s2, 2s2 2p6, 3s1. Hence, it has 1 valence electron.

- Magnesium (Mg) has an atomic number of 12, with an electronic configuration of 1s2, 2s2 2p6, 3s2. Hence, it has 2 valence electrons.

Thus, oxygen with 6 outermost electrons has the greatest number of valence electrons among the given elements.

3 0

4 years ago

The only major country that does not use the metric system

horrorfan [7]

It’s for sure United States (B)

3 0

4 years ago

A 0.32 kg turntable of radius 0.18 m spins about a vertical axis through its center. A constant rotational acceleration causes t

Kruka [31]

Answer: $18.85 rad/s^2$

Explanation:

Given

mass of turntable $m=0.32 kg$

radius $r=0.18 m$

$N=24 rev/s$

$\omega =2\pi N=2\pi 24$

$\omega =48\pi rad/s$

time interval $t=8 s$

using $\omega =\omeag _0+\alpha t$

where $\omega =final\ angular\ velocity$

$\omega _0=initial\ angular\ velocity$

$\alpha =angular\ acceleration$

$t=time$

$48\pi =0+\alpha \times 8$

$\alpha =6\pi rad/s^2$

$\alpha =18.85 rad/s^2$

5 0

3 years ago

And don't delete this

Mazyrski [523]

1. Cells
2. organelles
3. Cytoplasm
4. Nucleus itself—
5. mitochondrion
6. Cell cytoplasm
7. The cell membrane, provides protection for a cell.
8. A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics.

Hope this helped

6 0

3 years ago

Which object would have MORE kinetic energy?

valentinak56 [21]

Answer:

A dump truck going 70 mph

Explanation:

hope it helps you

6 0

3 years ago

Read 2 more answers