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marusya05 [52]
3 years ago
12

An 1800-kg car has an acceleration of 3.8 m/s2. What is the force acting on the car?

Physics
2 answers:
Elina [12.6K]3 years ago
4 0

Answer:

F = ma

F = (1800 kg)(3.8 m/s2 )

F = 6840 kg m/s2 = 6800 N

Scorpion4ik [409]3 years ago
4 0

given

mass = 1800 kg

acceleration = 3.8m/s.s

force = m × a

= 1800 × 3.8

= 6840 N

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A crane lifts a 425 kg steel beam vertically upward a distance of 614.4 m
Maru [420]

PHYSICS

*not sure about the answer but here we go*

Mass = 425 kg

distance = 614.4 m

acceleration = 1.8 m/s²

Answer :

Count Force first.

f \:  = m \:  \times a

F = 425 × 1,8

F = 765 N ✅

Now let's count Work.

w \:  =  \: f \:  \times s

W = 765 × 614.4

W = 470016 J ✅

7 0
2 years ago
What is biodiversity​
Sliva [168]

Answer:

Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.

Explanation:

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4 0
2 years ago
In the Boyle’s law experiment, what was used to increase the pressure on the air (gas)?
MA_775_DIABLO [31]

Answer:

Volume.

Explanation:

Boyle’s law experiment :

This is also known as Mariotte's law or in the other words it is also known as Boyle–Mariotte law.

This law tell us about the variation of gas pressure when the volume of the gas changes at the constant temperature.According to this law the abslute pressure is inversely proportional to the volume .

We can say that

P\alpha \dfrac{1}{V}

Where P=Pressure

V=Volume

PV = K

K=Constant

When volume decrease then the pressure of the gas will increase.

That is why the answer is "Volume".

8 0
3 years ago
A particle of charge 3.0 x 10 C experiences an upward force of magnitude 4.8 x 10-6N when it is placed in a particular point in
MA_775_DIABLO [31]

Answer: a) 1.6 * 10 ^-7 N/C (upward) ; b) -2.5*10^-6N (downward)

Explanation: In order to solve this proble we have to use the Coulomb law given by:

F=q*E from this expression we have

E=F/q=4.8*10^-6/30 C= 1.6 * 10 ^-7 N/C

The force on the particle charge by -1.6 X10 C place intead of the initial charge we have

F=q*E= -16 C* 1.6 * 10 ^-7 N/C= -2.5*10^-6N

6 0
3 years ago
The atoms that constitute your body are mostly empty space, and structures such as the chair you're sitting on are composed of a
shepuryov [24]

Explanation:

As we all know that the atom mainly composed of two parts, Nucleus at the center and the electrons dancing around it. And, yes there is a vast distance between nucleus and the electrons and it's about ten billionth of a meter. So the question is if there is such an empty space then why not our body just move through the chair and fall?  So the answer is, it's all due to the forces. Just like the cracking of lightning through the void, specks of electrons and nuclei are constantly interacting through the force called electromagnetic forces. During each interaction there is an exchange of energy particles called photons. So the each photon swapped is equals to the push or pull or the forces exerted across the emptiness. So these forces enable us to sit on chair or to do other things.

8 0
3 years ago
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