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4 years ago

Identify the independent and dependent variables.

Physics

1 answer:

IrinaK [193]4 years ago

7 0

Answer:

1) independent: the pencil

dependent :will sharpen

2)dependent: how high will the ball bounce

independent :the ball

3)dependent : does the flavor affect how fast someone can run

independent:someone

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Look at the attached photo:

pshichka [43]

Answer:

C) Mass of the ball

Explanation:

Independent variable is the variable the researcher changes.

Since Martin is testing the mass of the ball, he'll be using different balls and that is the only thing he changes.

The distance traveled by the ball is the dependent variable since it depends on the mass of the ball.

The height and length of the ramp are the constant variables since that's the only ones that remain the same throughout this experiment.

7 0

3 years ago

The gravitational force between two objects is 13.6x10-8N when they are 8cm apart. What would be the force between them when the

Alecsey [184]

Answer:

$F {(0.24)}^{2} = 13.6 \times {10}^{ - 8} \\ F = \frac{13.6 \times {10}^{ - 8}}{ {(0.24)}^{2} }N$

6 0

3 years ago

A string of length 1.3 m is oscillating in a standing wave pattern. If the tension in the string is 430 N, the string has a mass

Vlad1618 [11]

To solve this problem we will use the concepts related to the speed of a string which is given by the applied voltage and the linear mass density of it. With the speed value we can find the fundamental frequency that will serve as a step to find the maximum speed through the relation of Amplitude and Angular Speed. So:

$v = \sqrt{\frac{T}{\mu_e}}$

Where,

T = Tension

$\mu_e$ = Linear mass density

$v = \sqrt{\frac{430}{0.023}}$

$v = 136.7m/s$

With this value the fundamental frequency would be

$f = \frac{v}{2L}$

$f = \frac{136.7}{2*1.3}$

$f = 52.6Hz$

Finally the maximum speed is given with the relation between the Amplitude (A) and the Angular frequency, then

$V_{max} = A\omega$

$V_{max} = A(2\pi f)$

$V_{max} = (2.1*10^{-3})(2\pi 52.6)$

$V_{max} = 0.69m/s$

Therefore the correct answer is B.

6 0

4 years ago

__________________________ energy is the total kinetic energy of particles of matter. options: mechanical thermal electrical che

MissTica

Answer:

Thermal energy

Explanation:

I believe it is because the movement of particles has a connection with the temperature. Example: Since gas particles move very fast, it must be hot and freshly occurred through heating process.

7 0

4 years ago

In a loop-the-loop ride a car goes around a vertical, circular loop at a constant speed. The car has a mass m = 228 kg and moves

Mariulka [41]

Answer:

ride. You estimate thatch tofind that each loopp

8 0

3 years ago