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4 years ago

Explain why the index finger should be more sensitive than the back of the neck.

1 answer:

5 0

Answer: because you touch things with your finger and not with your neck and you finger has to be more sensitive to feel the thing you are touching.

Explanation:

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You throw a ball with a mass of 0.50 kg against a brick wall. It hits the wall moving horizontally to the left at 20 m/s and reb

Orlov [11]

Answer:

The value of impulse of the net force on the ball during its collision with wall is $I = 15\ kg \frac{m}{s}$

The value of average horizontal force that the wall exerts on the ball during the impact is F = 15000 N

Explanation:

Mass of the ball = 0.5 kg

Horizontal velocity $V_{x}$ = 20 $\frac{m}{s}$

Velocity after collision $V_{-x}$ = - 10 $\frac{m}{s}$

(A). Impulse of the net force on the ball during its collision with wall is

$I = m (V_{x} - V_{-x})$

I = 0.5 × (20 + 10)

$I = 15\ kg \frac{m}{s}$

This is the value of impulse of the net force on the ball during its collision with wall.

(B). The magnitude of average horizontal force

$F = \frac{I}{T}$

Where F = Force

I = impulse & t = time interval = 0.001 sec

$F = \frac{15}{0.001}$

F = 15000 N

This is the value of average horizontal force that the wall exerts on the ball during the impact.

8 0

3 years ago

A ___ is a machine which contains a lever and wedge that combine to make work easier.

gladu [14]

Don't be fooled ! The answer is a pair of scissor. I got it wrong because I put screw driver.

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4 years ago

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In 2.5 S, a Car increases its speed from 20.0m/s to 25.0 m/s what is the acceleration of the car

Dima020 [189]

Answer:

2 m/s

Explanation:

3 0

3 years ago

What is the highest and lowest frequency a human being can hear

nata0808 [166]

Every person is different. But for a planet-wide overall average that roughly represents all human beings on Earth, the figures usually used are:

from 20 Hz to 20,000 Hz .

6 0

3 years ago

A mirage is created when light is refracted _____.

BabaBlast [244]

I think the correct answer from the choices listed above is option D. A mirage is created when light is refracted through layers of hot air just above a surface, causing it to follow a curved path. <span>A </span>mirage<span> is an optical phenomenon that creates the illusion of water and results from the refraction of light through a non-uniform medium.</span>

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3 years ago

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