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4 years ago

In a system, 45 J of work is done on a car using a 65 N force. how far does the car move?

Physics

1 answer:

stellarik [79]4 years ago

5 0

Answer:

So the answer is .7 (whatever unit)

Explanation:

The distance can be determined by using the formula:

D = W/F (Distance = Work divided by Force.

The Work is 45 J. The Force is 65 N (newtons).

So, it would be 45/65.

.70 or .7

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What's an interesting fact about Aristotle?

gladu [14]

Answer:

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Interesting Aristotle Facts: 1-5

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His father was Nicomachus. ...

Nicomachus died when Aristotle was a young boy. ...

After the death of Nicomachus, Proxenus – husband of Aristotle's sister Arimneste, became the guardian of young Aristotle.

8 0

3 years ago

vladimir1956 [14]

Answer:

a. petrification

Explanation:

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3 0

3 years ago

"As you sit in a fishing boat, you notice that 12 waves pass the boat every 45 s. If the distance from one crest to the next is

Alchen [17]

Answer:

2.4564 m/s

Explanation:

Number of waves in 1 second

$\dfrac{12}{45}=0.267\ Hz$

This is the frequency 0.267 Hz

The distance mentioned in the question is the

$\lambda$ = Wavelength = 9.2 m

The speed of wave is

$v=f\lambda$

$\Rightarrow v=0.267\times 9.2$

$\Rightarrow v=2.4564\ m/s$

The speed of the wave is 2.4564 m/s

4 0

3 years ago

Using a scale diagram, calculate the resultant force acting on a sailing boat when an easterly wind provides 2, point, 50, k, N,

EastWind [94]

Answer:

F = 3.6 kN, direction is 9.6º to the North - East

Explanation:

The force is a vector, so one method to find the solution is to work with the components of the vector as scalars and then construct the resulting vector.

Let's use trigonometry to find the component of the forces, let's use a reference frame where the x-axis coincides with the East and the y-axis coincides with the North.

Wind

X axis

F₁ = 2.50 kN

Tide

cos 30 = F₂ₓ / F₂

sin 30 = F_{2y} / F₂

F₂ₓ = F₂ cos 30

F_{2y} = F₂ sin 30

F₂ₓ = 1.20cos 30 = 1.039 kN

F_{2y} = 1.20 sin 30 = 0.600 kN

the resultant force is

X axis

Fₓ = F₁ₓ + F₂ₓ

Fₓ = 2.50 +1.039

Fₓ = 3,539 kN

F_y = F_{2y}

F_y = 0.600

to find the vector we use the Pythagorean theorem

F = $\sqrt{F_x^2 +F_y^2}$

F = $\sqrt{ 3.539^2 + 0.600^2 }$

F = 3,589 kN

the address is

tan θ = F_y / Fₓ

θ = tan⁻¹ $\frac{F_y}{F_x}$

θ = tan⁻¹ $\frac{0.6}{3.539}$ 0.6 / 3.539

θ = 9.6º

the resultant force to two significant figures is

F = 3.6 kN

the direction is 9.6º to the North - East

7 0

3 years ago

In Einstein’s analysis, a photon striking the surface of a conductor is absorbed by an electron. Which statement describes the s

puteri [66]

Answer:

the correct answer is A

Explanation:

In an Einstein-type analysis, the photon is absorbed, it loses all its energy, therefore the electron must receive all or none of the energy of the incident photon. In a type of inelastic shock.

Let's analyze the different answers

A) true. In photon it is completely absorbed or passes without interaction

B) False. The photon must change energy, but in this case there is no absorption of the photon

C) False. In the insistent analyzes, the quantization of the electron in discrete states is not mentioned.

Therefore the correct answer is A

7 0

3 years ago