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3 years ago

What effect did the internal combustion engine have on transportation?

1 answer:

8 0

Made it accessible for everyone and for everything. The combustion engine revolution created the worse human invention: traffic.

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A biker rides on an upward-sloped road inclined at a 15.0° angle with the horizontal. If he moves at a constant speed of 2.0 met

IrinaVladis [17]

With total velocity $v=2.0\,\dfrac{\mathrm m}{\mathrm s}$ , the horizontal component of velocity is

$v_x=\left(2.0\,\dfrac{\mathrm m}{\mathrm s}\right)\cos15.0^\circ\approx1.93\,\dfrac{\mathrm m}{\mathrm s}$

Then the horizontal displacement over the first minute is

$s_x=\left(1.93\,\dfrac{\mathrm m}{\mathrm s}\right)(60\,\mathrm s)\approx116\,\mathrm m$

6 0

3 years ago

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Suppose a 2662 kg giant seal is placed on a scale and produces a 20.0 cm compres- sion. If the seal and spring system are set in

Yuki888 [10]

Answer:

0.8976 seconds

Explanation:

The period of oscillation for the simple harmonic motion can be found using the formula ...

T = 2π√(d/g)

where d is the displacement of the spring due to the attached weight, and g is the acceleration due to gravity.

For d = 0.20 meters, the period is ...

T = 2π√(0.20/9.8) ≈ 0.8976 . . . . seconds

_____

<em>Additional comment</em>

The formula for the oscillator period is usually seen as ...

T = 2π√(m/k)

where m is the mass in the system and k is the spring constant. The value of the spring constant is calculated from ...

k = mg/d

Using that in the formula, we find it simplifies to ...

$T=2\pi\sqrt{\dfrac{m}{k}}=2\pi\sqrt{\dfrac{m}{\left(\dfrac{mg}{d}\right)}}=2\pi\sqrt{\dfrac{d}{g}}$

5 0

2 years ago

In a(n) BLANK , the matter’s identity stays the same.

irina1246 [14]

Matter the same thing is gas or come dioxide

5 0

4 years ago

A basketball player is running at 5.00 m/s directly toward the basket when he jumps into the air to dunk the ball. He maintains

makkiz [27]

Answer:

3.834 m/s

Explanation:

h = 0.750 m

vx = 5 m/s

Let the initial vertical velocity is vy.

Final vertical velocity is zero

use third equation of motion along y axis

v^2 = vy^2 - 2 x g x h

0 = vy^2 - 2 x 9.8 x 0.75

vy^2 = 14.7

vy = 3.834 m/s

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4 years ago

What happens if 5 Protons combine with 4 neutrons.

lianna [129]

in the case of beryllium, a light metal, only the beryllium-9 isotope is stable with its 9 nucleons (i.e. 4 protons and 5 neutrons)

Hope this helps so sorry if it does not help

7 0

3 years ago

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