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Kitty [74]
3 years ago
15

What is an ion and how does an atom become both positive or negative ion?

Physics
1 answer:
Bess [88]3 years ago
8 0

Answer:

An ion is an atom or group of atoms with a positive or negative charge. Ions form when atoms lose or gain electrons to obtain a full outer shell: metal atoms lose electrons to form positively charged ions non-metal atoms gain electrons to form negatively charged ions.

Explanation:

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If a ball leaves the ground with a vertical velocity of 5.46 m/s, how long does it take
kifflom [539]

Answer:

0.557 s

Explanation:

Given:

v₀ = 5.46 m/s

v = 0 m/s

a = -9.8 m/s²

Find: t

v = at + v₀

0 m/s = (-9.8 m/s²) t + 5.46 m/s

t = 0.557 s

8 0
4 years ago
Two small frogs simultaneously leap straight up from a lily pad. frog a leaps with an initial velocity of 0.551 m/s, while frog
Setler [38]
Define
g = 9.8 m/s², acceleration due to gravity, positive downward.

Assume that wind resistance may be neglected.

Frog A:
u = 0.551 m/s, launch velocity, upward.
When the frog lands back on the pad, its vertical position is zero, and its vertical velocity will be 0.551 m/s downward.
If the time of flight is t, then
(0.551 m/s)*(t s) - 0.5*(9.8 m/s²)*(t s)² = 0
0.551t - 4.9t² = 0
t = 0, or t = 0.1124 s
t = 0 corresponds to launch, and t = 0.1124 s corresponds to landing.

Frog B:
Launch velocity is 1.75 m/s
When t = 0.1124 s, the position of the frog is
s = (1.75 m/s)(0.1124 s) - 0.5*(9.8 m/s²)*(0.1124 s)²
   = 0.135 m
The velocity of frog B is
v = (1.75 m/s) - (9.8 m/s²)*(0.1124 s)
   = 0.6485 m/s

Answer:
When frog A lands on the ground,
Frog B is 0.135 m above ground and its velocity is 0.649 m/s upward.

5 0
4 years ago
6. Two out of three of Newton's laws of motion have concrete, real life examples provided
Rom4ik [11]

Answer:

Explanation:motion are ubiquitous in everyday life. For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers apply Newton's third law when designing rockets and other projectile devices.

6 0
3 years ago
I WILL MARK YOU THE BRAINLIEST ANSWER THIS ASAP !!!
Julli [10]
The answer would be “the study of matter and energy and how they interact”. :))
7 0
2 years ago
Name the type of particle formed by covalent bonds
jasenka [17]
Molecules and polyatomic ions are formed by covalent bonds.
6 0
3 years ago
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