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777dan777 [17]
3 years ago
12

I need help! Please! This is big dumb. And I am feeling big dumb Will mark brainiest!

Physics
2 answers:
Vladimir [108]3 years ago
4 0

Please don't run yourself down !  You are not dumb !  You are a school-boy, using a computer, to access the Internet, implement duplex digital communication, and answer a question on Sir Isaac Newton's laws of motion.  I'm pretty sure that your parents and grandparents could never do most of that !  

Now I'll SHOW you that you're only overthinking this.  If you didn't practically INVITE it to scare you, it couldn't do that.

The question is:   When you push a 0.65 kg ball with 125 Newtons of force, what is the ball's acceleration ?  

That's the question. You have no idea how to get acceleration out of mass and force.  You kinda remember that there was some kinda formula to calculate it with, but there's no chance that you remember the formula.

Now SIT UP in your chair, turn off your phone and the music, LOOK at the problem, READ it, and ALLOW your BRAIN to warm up.

READ the first line.  It says USE THIS FORMULA .  What are the letters in the formula ?  

-- ' a ' ... that's acceleration; that's what you have to find.  

-- ' F ' ... that's Force; you know it; it's 125 Newtons.

-- ' m ' ... that's mass; you know it; it's 0.65 kg .

What would happen if you write 125 in place of the 'F', write 0.65 in place of the 'm', and divide them because it's written in a fraction ?  You'd get a single number.  Then the formula would say ' acceleration = the number '.

Would it be the correct number for acceleration ?  I don't know. But who cares ! The problem says "Use this formula". So the right answer is whatever number you get when you use this formula.

It so happens that the formula IS the correct one, because it comes from Newton's second law of motion; eventually, you'll need to know this.  But right now, to answer the question and solve the problem, all you have to do it USE THIS FORMULA, and see if the number you get is one of the choices.  

Don't overthink these things. They can't scare you if you don't let them.

Gelneren [198K]3 years ago
4 0

Answer:

Its C, the answer is C

Explanation:

You might be interested in
an object with a mass of 5kg is moving with an initial velocity of 20m/s.the object accelerates at a rate of 15m/s/s for 8s.what
Alinara [238K]

It doesn't matter what the object's initial velocity is, or how long
the acceleration lasts.  All that matters is the object's mass and
acceleration.

Force = (mass) x (acceleration) =

                (5kg) x (15 m/s²) =

                         75 kg-m/s² = <em>75 newtons .</em>


5 0
3 years ago
If a sound wave travels 680 m in 2 seconds and has a frequency of 400 hz, what is the wavelength of the wave?
Kipish [7]

Answer: 0.85 meters (with and without sigfigs)

Explanation: To find the wavelength, you just have to switch around the equation for wave speed: v (wave speed) = λ (wavelength)*f (frequency) so λ (wavelength) = v (wave speed)/f (frequency). You don't have the wave speed but you can calculate it. Since wave speed is measured in meters/second or m/s, you just have to divide the amount of meters you were given by the amount of seconds. You will get 340 m/s. Next, you have to plug the values into the equation: λ (wavelength) = 340 m/s (wave speed)/400 Hz (frequency). The answer is 0.85 meters (seconds cancel) and has the correct number of significant figures.

5 0
3 years ago
Who was the first man on planet Jupiter​
melamori03 [73]
No one has been there yet
7 0
3 years ago
Dua titik yang bermuatan listrik yang sama, mula-mula berjarak 5 cm dan saling tarik menarik dengan gaya 225 N. Agar kedua titik
Serggg [28]

Answer:

15 cm

Explanation:

Dari pertanyaan yang diberikan di atas, diperoleh data sebagai berikut:

Gaya 1 (F₁) = 225 N

Jarak terpisah 1 (d) = 5 cm

Gaya 2 (F₂) = 25 N

Jarak terpisah 2 (d₂) =?

Kita dapat memperoleh persamaan yang berkaitan dengan gaya dan jarak muatan dua titik dengan menggunakan rumus berikut:

F = Kq₁q₂ / d²

Perbanyak silang

Fd² = Kq₁q₂

Menjaga Kq₁q₂ konstan, kita memiliki:

F₁d₁² = F₂d₂²

Dengan rumus di atas maka diperoleh jarak sebagai berikut:

Gaya 1 (F₁) = 225 N

Jarak terpisah 1 (d) = 5 cm

Gaya 2 (F₂) = 25 N

Jarak terpisah 2 (d₂) =?

F₁d₁² = F₂d₂²

225 × 5² = 25 × d₂²

225 × 25 = 25 × d₂²

5625 = 25 × d₂²

Bagilah kedua sisinya dengan 25

d₂² = 5625/25

d₂² = 225

Hitung akar kuadrat dari kedua sisi

d₂ = √225

d₂ = 15 cm

Oleh karena itu, muatan dua titik harus berjarak 15 cm untuk memiliki gaya tarik 25 N

4 0
3 years ago
We can model the motion of a bumblebee's wing as simple harmonic motion. A bee beats its wings 250 times per second, and the win
zlopas [31]

Answer:

The amplitude of the wing tip's motion is 1.6 mm.

Explanation:

Given that,

Beat = 250 /s

Speed = 2.5 m/s

We need to calculate the amplitude of the wing tip's motion

Using the equation for the maximum velocity

v_{max}=2\pi f A

A=\dfrac{v}{2\pi f}

Where,

v = speed

f = frequency

A = amplitude

Put the value into the formula

A=\dfrac{2.5}{2\pi\times250}

A=0.00159 = 1.59\times10^{-3}\ m

A=1.6\ mm

Hence, The amplitude of the wing tip's motion is 1.6 mm.

3 0
4 years ago
Read 2 more answers
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