All categories

2 years ago

The bodies of many cars are designed to compress or crumple during an accident. Why are cars built with a crumple zone?

1 answer:

8 0

By collapsing and crumpling, the force and energy is absorbed by the crumple zone and it is not transferred to the passengers inside. This is a safety feature for the passengers.

You might be interested in

Which term describes when situations, events, or people make demands on your body and mind

mars1129 [50]

Stress

Stress is a condition of mental strain or pressure on the body and coming about because of unfavorable or demanding conditions that the person cannot handle at that moment.

6 0

3 years ago

Read 2 more answers

A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 691 nm. Determine the angle

expeople1 [14]

Explanation:

Given that,

Wavelength of the light, $\lambda=691\ nm=691\times 10^{-9}\ m$

(a) Slit width, $a=3.8\times 10^{-4}\ m$

The angle that locates the first dark fringe is given by :

$sin\theta=\dfrac{\lambda}{a}$

$sin\theta=\dfrac{691\times 10^{-9}}{3.8\times 10^{-4}}$

$\theta=0.104^{\circ}$

(b) Slit width, $a=3.8\times 10^{-6}\ m$

The angle that locates the first dark fringe is given by :

$sin\theta=\dfrac{\lambda}{a}$

$sin\theta=\dfrac{691\times 10^{-9}}{3.8\times 10^{-6}}$

$\theta=10.47^{\circ}$

Hence, this is the required solution.

7 0

3 years ago

What is the charge on a hypothetical ion with 35 protons and 37 electrons?

irinina [24]

Charge= Protons- electrons
Charge= 35p-37e= -2

This Ion will have a charge of -2.

5 0

3 years ago

All leukocytes fight off infections by using phagocytosis. A. True B. False

Mila [183]

the question is correct

4 0

2 years ago

How long does it take a message to travel from earth to a spacecraft at mars at its farthest from earth (about 400 million km)?

seraphim [82]

A message needs to be traveled to mars from earth. Distance between Earth and Mars (given) s = 400 million km
Speed of light = 3.00—10^5 km/ sec
We know Velocity = distance / time => time = distance / velocity
Time taken t = 400 million km / 3.00—10^5 = 400 x 10^6 / 3 x 10^5 = 1333.3 sec Time taken t = 22 min

5 0

3 years ago