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olya-2409 [2.1K]
3 years ago
5

This interactive involves observing the results of dropping an egg onto a surface. the size of the egg, the height from which it

is dropped, and the characteristics of the landing surface can be varied. the effect of these variations upon the safety of the egg will be examined. the interactive is based on the impulse-momentum change theorem. the questions below target a interactive ability to reason scientifically.
When a small egg is dropped onto the piece of 1-inch foam, from which height did the egg
break entirely? Select all that apply.

a. When dropped from 1 meter.
b. When dropped from 5 meters.
c. When dropped from 10 meters.
d. Nonsense! The small egg never broke when dropped onto 1-inch foam.
Physics
2 answers:
MAXImum [283]3 years ago
3 0

Answer:

c. When dropped from 10 meters

Explanation:

Falling from a height of 10 m gives it the maximum acceleration compared to the other two heights. According to Newton's second law of motion, a force on a body is proportional to its change of momentum, this means that falling at a height of 10 m will generate more acceleration which translates to more velocity. On impact, this velocity is suddenly reduced to zero, generating a large impulse that has a higher tendency of completely shattering the egg shell.

IgorC [24]3 years ago
3 0

Answer:

assaasxsxsxsxsxxsx

Explanation:

xsxxsxsxxsxxxsxsxsxsxx

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Which light is most sensitive to the eyes?
san4es73 [151]

Answer:

Our eyes are most sensitive to the wavelengths corresponding to the yellow and green colors of the spectrum. Flashy signs and some fire engines are painted in a yellowish-green color to attract our attention.

6 0
3 years ago
The magnetic field at the centre of a toroid is 2.2-mT. If the toroid carries a current of 9.6 A and has 6.000 turns, what is th
ziro4ka [17]

Answer:

Radius, r = 0.00523 meters

Explanation:

It is given that,

Magnetic field, B=2\ mT=2.2\times 10^{-3}\ T

Current in the toroid, I = 9.6 A

Number of turns, N = 6

We need to find the radius of the toroid. The magnetic field at the center of the toroid is given by :                  

B=\dfrac{\mu_oNI}{2\pi r}

r=\dfrac{\mu_oNI}{2\pi B}  

r=\dfrac{4\pi \times 10^{-7}\times 6\times 9.6}{2.2\pi \times 2\times 10^{-3}}  

r = 0.00523 m

or

r=5.23\times 10^{-3}\ m

So, the radius of the toroid is 0.00523 meters. Hence, this is the required solution.

7 0
3 years ago
Read 2 more answers
Identify the law, write the equation and calculate the answer to the problem below.
lyudmila [28]

Find refractive index first

\\ \rm\Rrightarrow \mu=\dfrac{c}{v}

\\ \rm\Rrightarrow \mu=\dfrac{1.0003}{1.33}

\\ \rm\Rrightarrow \mu =0.75

Now

\\ \rm\Rrightarrow \dfrac{sini}{sinr}=\mu

\\ \rm\Rrightarrow \dfrac{sin45}{sinr}=0.75

\\ \rm\Rrightarrow \dfrac{sin45}{0.75}=sinr

\\ \rm\Rrightarrow sinr=0.94

\\ \rm\Rrightarrow r=sin^{-1}(0.94)

\\ \rm\Rrightarrow r=70^{\circ}

5 0
2 years ago
A truck with 0.420-m-radius tires travels at 32.0 m/s. what is the angular velocity of the rotating tires in radians per second?
andrey2020 [161]

Angular velocity of the rotating tires can be calculated using the formula,

v=ω×r

Here, v is the velocity of the tires = 32 m/s

r is the radius of the tires= 0.42 m

ω is the angular velocity

Substituting the values we get,

32=ω×0.42

ω= 32/0.42 = 76.19 rad/s

= 76.19×\frac{1}{2\pi} *60 revolution per min

=728 rpm

Angular velocity of the rotating tires is 76.19 rad/s or 728 rpm.

4 0
4 years ago
Pitch describes how high or low a sound is. The pitch of a sound is most dependent upon the of the sound wave.
Reil [10]
Answer: C. Frequency
4 0
3 years ago
Read 2 more answers
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