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3 years ago

How do you think television programs movies and car commercials influence driving behavior

1 answer:

4 0

When you watch the same thing over and over (like a car commercial), then your brain begins to question morals. Like if you see a racing movie you might want to go and race. Or if you see an underage kid illegally driving, you might want to try it too.

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A 4 kg object is moving at a speed of 5 m/sec. How much kinetic energy does the object have? A. 10 joules B. 20 joules C. 50 jou

sp2606 [1]

Answer:

A. 10 joules

Explanation:

Given parameters:

Mass of object = 4kg

Speed = 5m/s

Unknown:

Kinetic energy of the the object = ?

Solution:

Kinetic energy is the energy due to a moving body.

So;

mathematically;

K.E = $\frac{1}{2}$ x m v²

m is the mass

v is the velocity

K.E = $\frac{1}{2}$ x 4 x 5 = 10J

5 0

3 years ago

A rocket-driven sled Sonic Wind No. 2, is used for investigating the physiological effects of large accelerations on people. It

rewona [7]

Answer:

The best single equation in order to fin the acceleration is

$a=v_f/t=250/2=125m/s^2$

Explanation:

The best single equation in order to find the acceleration is the following kinematics equation:

$v_f=v_o+at$

As the rocket start from the rest, the initial velocity value is zero. Then the acceleration value is:

$a=v_f/t=250/2=125m/s^2$

7 0

3 years ago

So i am doing a science fair project and its about earthquakes so im going to need different supports for my buildings. I found

In-s [12.5K]

You could use clay, sticks, rocks, Legos,

8 0

3 years ago

Helo am desperate answer quick will give brainliest

Anika [276]

Answer:

Pitch. The sound an article makes changes relying upon how quick it is vibrating. At the point when an item vibrates rapidly, sharp sounds are heard. Low-pitched sounds come from things that vibrate all the more gradually.

Explanation:

7 0

3 years ago

Read 2 more answers

For resistors in series, the equivalent resistance is _____ of their values.

Stels [109]

Answer: The correct answer is "the same as the sum".

Explanation:

The expression for the equivalent resistance in the series combination of the circuit is as follows;

$R'=R_{1} +R_{2} +R_{3}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

The expression for the equivalent resistance in the parallel combination of the circuit is as follows;

$\frac{1}{R'} =\frac{1}{R_{1}} +\frac{1}{R_{2}}+\frac{1}{R_{3}}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

In the series combination of the circuit, the equivalent resistance is more than the equivalent resistance in the parallel combination of the circuit.

In the series combination of the circuit, the same amount of current flows across the resistance but the voltage is different across the resistances.

Therefore, for resistor in series, the equivalent resistance is the same as the sum.

8 0

3 years ago