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ira [324]
3 years ago
12

____________ acceleration involves speeding up, while ____________ acceleration involves slowing down. a. positive, negative c.

positive, braking b. negative, positive d. both a and c
Chemistry
2 answers:
Novosadov [1.4K]3 years ago
8 0

Answer:

Positive acceleration involves speeding up, while negative acceleration involves slowing down.

Explanation:

I am so sorry if I was wrong!

Fofino [41]3 years ago
5 0

Answer:

no just no

Explanation:

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Line.
blagie [28]

Answer:

c) Normal

Explanation:

Reflection is a phenomenon typical of light wave; it occurs when a ray of light hits the interface between two mediums, and bounces off back into the original medium, at a certain angle.

The direction of the reflected ray is determined by the law of reflection, which states that:

1) The incident ray and the reflected ray, together with the normal to the interface (the perpendicular to the interface), all lie within the same plane

2) The angle of incidence is equal to the angle of reflection:

\theta_i=\theta_r

where

\theta_i is measured as the angle between the incident ray and the normal to the interface

\theta_r is measured as the angle between the reflected ray and the normal to the interface

8 0
3 years ago
Please help :)<br> I don’t know what to do
3241004551 [841]

Answer:

1. MgCl2 + Zn -> Mg + ZnCl2

2. 2Al + 6H2O(g) -> 2Al(OH)3 + 3H2

3. 2Cd + O2 -> 2CdO

4. I2 + KF -> it's not going to react

5. Zn + H2SO4 -> ZnSO4 + H2

6.2KBr + Cl2 -> 2KCl + Br2

7. AgNO3 + Na -> NaNO3 + Ag

8. 2NaCl + F2 -> 2NaF + Cl2

9. AgNO3 + Mg(NO3)2 + Ag

10. Ni + H2SO4 -> NiSO4 + H2

11. Al + K2SO4

12. FeCl3 + 3Mn-> 3MnCl + Fe

13. 2Na + 2H2O -> 2NaOH + H2

14. 2K + MgBr2 -> 2KBr + Mg

15. Zn + Pb(NO3)2 -> Pb + Zn(NO3)2

16. 2AlBr3+ 3Cl2 -> 2AlCl3 + 3Br2

3 0
4 years ago
When KCl dissolves in water:
34kurt

This dissociation occur because:

O had to bond with H due to the Hydrogen bonding rule, which will form OH~ (Hydroxide).

K is more attracted to Hydroxide than Cl, so it will depart Cl and bond with OH~.

that leaves a H and a Cl, which one has a positive charge and the other has a negative, so they will bond and form Hydrochloric Acid.

3 0
3 years ago
#9 answer with explanation
Slav-nsk [51]

Answer:

A.  6.0 mol H₂O

Explanation:

3 mol O₂ x  \frac{2 mol H2O}{1 mol O2} = 6 mol H₂O

6 0
3 years ago
Record your findings about sound and light waves for each of the following.
Troyanec [42]

Answer:

Sound waves travelling through the air: Sound waves travelling through air are just like longitudinal waves lacking compressions and rarefactions. The speed of sound waves in air is approximately 332 metres per second.

Light waves travelling through air: Light waves travel in air at a much faster rate than sound waves. Light waves can travel with a speed of 300 000 kilometres per second through air.

Sound waves traveling through metal: Sound waves travel about 17 times faster in metal as compared to air. The sound waves travel with an approximate speed of 5,960 meters per second in metals.

Light waves travelling through metal: The speed of light waves in a metal medium is usually at a net speed which is less than 3.00 x 108 m/s.

Light travels faster than sound waves because light waves are not pressure waves like the sound waves. They also do not require a medium as the sound waves.

7 0
3 years ago
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