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noname [10]
3 years ago
8

An object with a mass of 2.0 kg accelerates 2.0 m/s2 when an unknown force is applied to it. What is the amount of the force?​

Physics
2 answers:
Alinara [238K]3 years ago
7 0

Answer:

4 Newton’s

Explanation:

Novay_Z [31]3 years ago
5 0

Answer:

yup its 4

Explanation:

did it in my science class

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A 850-kg sports car accelerates from rest to 95 km/h in 6.8 s .
swat32

From the calculations, the power expended is 43650 W.

<h3>What is the power expended?</h3>

Now we can find the acceleration from;

v = u + at

u = 0 m/s

v =  95 km/h or 26.4 m/s

t =  6.8 s

a = ?

Now

v = at

a = v/t

a = 26.4 m/s/ 6.8 s

a = 3.88 m/s^2

Force = ma = 850-kg * 3.88 m/s^2 = 3298 N

The distance covered is obtained from;

v^2 = u^2 + 2as

v^2 = 2as

s = v^2/2a

s = (26.4)^2/2 * 3.88

s = 696.96/7.76

s = 90 m

Now;

Work = Fs

Work =  3298 N * 90 m = 296820 J

Power =  296820 J/ 6.8 s

= 43650 W

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5 0
2 years ago
The transfer of thermal energy via electromagnetic waves is know as what
katrin2010 [14]

Answer:

Radiation

Explanation:

7 0
3 years ago
The acceleration due to gravity on Jupiter is greater than that on Earth. On Jupiter, a person will weigh ______.
soldier1979 [14.2K]
A person will weigh more

5 0
3 years ago
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6.A truck is carrying a steel beam of length 13.0 m on a freeway. An accident causes the beam to be dumped off the truck and sli
labwork [276]

The magnitude is 13.12 mV.

The steps are attached below.

<h3>How do you find the magnitude of an induced emf?</h3>

The standard SI unit of the magnetic field is the tesla (T). As an end result, we can use these equations and the equation for an induced emf due to changes in magnetic flux, ϵ=−NΔϕΔt ϵ = − N Δ ϕ Δ t, to calculate the importance of a precipitated emf in a solenoid.

The magnitude of the precipitated contemporary depends on the rate of trade of magnetic flux or the fee of reducing the magnetic area strains.

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3 0
2 years ago
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The sensor in the torso of a crash test dummy records the magnitude znd direction of the net force acting on the dummy.If the du
patriot [66]

Answer : The force will be 4501.9

We can see that, two forces acting on the dummy in two different direction.

We know that, here two forces are given in perpendicular direction with each other.

We know the force is the vector addition law so, we will use the Pythagoras theorem for the resultant of the vectors

Now, the net force is

F_{net} = \sqrt{{F_{1}}^{2}+ {F_{2}}^{2}}

Two forces is given,

F_{1} = 130.0 N

F_{2} = 4500.0 N

Now, the net force is

F_{net} = \sqrt{(130)^{2}+ (4500)^{2}}N

F_{net} = \sqrt{20266900}N

F_{net} = 4501.9 N

Hence, the force will 4501.9 N

8 0
3 years ago
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