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Anton [14]
3 years ago
14

Hi guys please help me what is the chemical formula of potassium react with oxygen ​

Physics
1 answer:
oksian1 [2.3K]3 years ago
8 0

Answer:

K2O

Explanation:

Brainliest Please!!!

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What acceleration of a 45 kg mass pushed with 15 N of force?
Hitman42 [59]

Explanation:

Fnet = ma.

Assume that there is no resistance acting on the mass. Therefore a = 15N / 45kg = 0.33N/kg or 0.33m/s^2.

3 0
3 years ago
A lunar exploration vehicle was created by a research team. It weighs 3,000 kg on the earth. It needs an acceleration of 10 m/s2
Arada [10]
Answer = 30,000 N

EXPLANATION

Applying Newton’s second of law of motion, which in summary, states that t<span>he acceleration of an object... is directly proportional to the magnitude of the net force... and inversely proportional to the mass of the object.
</span><span>
Therefore, Force = Mass * Acceleration
F = ma

Mass, m = </span><span>3,000 kg
</span>Acceleration, a = <span>10 m/s</span>²<span>
</span>Force, F = 3,000 × 10
= 30,000 N
6 0
3 years ago
Because Earth's rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0 ms lon
stira [4]

Answer:

0.088 seconds

0.0880000273785 second

0.08800054757 seconds

Explanation:

In the question it is given each century adds 1 ms to a day due to the slowing rotation of the Earth

In 88 centuries the length of the first day of the year will be

88 × 1 = 88 ms = 0.088 seconds

1 ms = 1 century

1 century = 100 years × 365.25 days

⇒1 ms = 36525 days

1\ day=\frac{1}{365.25}=2.7378\times 10^{-5} ms=2.7378\times 10^{-8} s

Sum of the gain on the first day would be

0.088 + 2.7378×10⁻⁸ = 0.0880000273785 second

Sum of the gain on the second day would be

0.088 + 2.7378×10⁻⁸+2.7378×10⁻⁸ = 0.08800054757 seconds

7 0
3 years ago
A missle is flying at a speed 125 m/s. if the missle has a mass of 125 kg. What’s it’s kinetic energy
Fynjy0 [20]

Answer:

976562.5\ Joules

Explanation:

We\ are\ given:\\The\ mass\ of\ the\ missile=125\ kg\\The\ velocity\ of\ the\ missile=125\ m/s\\Hence,\\As\ we\ know\ that,\\Kinetic\ energy\ possessed\ by\ an\ object\ with\ mass\ m\ moving\\ with\ a\ velocity\ v:\\E_k=\frac{1}{2}mv^2\\Here,\\The\ Kinetic\ Energy\ possessed\ by\ the\ missile=\frac{1}{2}*125*(125)^2=976562.5\ Joules

6 0
3 years ago
A dart is thrown at a target that is supported by a wooden backstop. It strikes the backstop with an initial velocity of 350 m/s
11Alexandr11 [23.1K]

Answer:u=350m/sec

v=0m/sec

t=0.005sec

a=v-u/t

=0-350/0.005

= -350/0.005

= -350×1000/5

= -70×1000

= -70000 m/sec^2

Explanation: i think this will help you thankyou

6 0
3 years ago
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