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zhenek [66]
3 years ago
12

( timed for this!! please help!!) Which best defines scientific question?

Physics
1 answer:
Viefleur [7K]3 years ago
5 0
My opinion, the answer is b

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What is equal to the kinetic energy of a car with a mass of 0.5t (tonne) if it travels evenly at 70 km/h?
Aleonysh [2.5K]
Formula for kinetic energy is 1/2mv^2 so that answer should most probably be 94521.6J
5 0
3 years ago
HELP PLEASE <br> Find the net force necessary for a 15 kg object to accelerate at 20 m/s/s.
tensa zangetsu [6.8K]

Answer:

<h3>The answer is 300 N</h3>

Explanation:

The force acting on an object given the mass and acceleration we use the formula

<h3>force = mass × acceleration</h3>

We have

force = 15 × 20

We have the final answer as

<h3>300 N</h3>

Hope this helps you

3 0
3 years ago
The density of water is 1000 kg/m the pressure pf water at 10 m depth is about
puteri [66]

Answer:

pressure in liquids is given as:

P= hpg

where h is the depth

where p is the density

where g is 10

Explanation:

From the formula above

p = 10 X 1000 X 10

p = 100000N/m

6 0
2 years ago
Electoral punishment is a potential remedy to which of the following problems?
Harman [31]

Answer:

Election manipulation, vote rigging

Explanation:

Electoral fraud is sometimes known as election fraud or election manipulation or vote rigging is  illegal in the process of election.

 The electoral fraud changes from country to country .

The election process is conducted and supervised by the electoral bodies.

The manipulation of electoral processes and outcomes are also referred to as electoral malpractice.

In India a huge number of electoral malpractices are occurs.

It will happen by elections or candidates with strong criminal background are fighting the elections.  

4 0
2 years ago
What is the energy of a 5 kg object that is held at a height of 3 m above the ground?
Korolek [52]

Answer:

a 5 kilogram mass, at a height of 3 meters, while acted on by Earth's gravity would have 147.15 Joules of potential energy, PE = 3kg * 9.81 m/s2 * 5m = 147.15 J.

Explanation:

8 0
2 years ago
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