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pshichka [43]
3 years ago
10

In the United States, car accidents are the leading cause of death for teenagers. Wearing seat belts helps save lives. Describe

how Newton’s three laws of motion are used in testing the safety of our automobiles.
Physics
1 answer:
Mashutka [201]3 years ago
7 0
-An object in motion or at rest will stay at rest or in motion unless acted by anther force. - A seat belt keeps you from flying from your car when it is hit to help keep you still and in your seat along with an air bag.
-Force = Mass X Acceleration - Used to find how much force a human can take if the car is going at a certain speed to adjust the airbag to keep the person alive.
-For every action, there is an equal and opposite reaction - This is used to show that the car must be balanced and tested in many other ways. The car's tires and axle must be strong enough to hold the weight of the car which is right over it.
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What is the Lorentz force law used for?
alexira [117]

Answer:

Lorentz force, the force exerted on a charged particle q moving with velocity v through an electric E and magnetic field B. The entire electromagnetic force F on the charged particle is called the Lorentz force (after the Dutch physicist Hendrik A. Lorentz) and is given by F = qE + qv × B.

Explanation:

N/A

8 0
3 years ago
Read 2 more answers
Why is it that the weight of an object weighing 1N air, weighs more when immersed in water ?
Anni [7]
There is no "why", because that's not what happens.  The truth is
exactly the opposite. 

Whatever the weight of a solid object is in air, that weight will appear
to be LESS when the object is immersed in water.

The object is lifted by a force equal to the weight of the fluid it displaces.
It displaces the same amount of air or water, and any amount of water
weighs more than the same amount of air.  So the force that lifts the
object in water is greater than the force that lifts it in air, and the object
appears to weigh less in the water.
4 0
3 years ago
Considering this analogy (current = rate that heat flows through a window, and voltage = temperature difference across the windo
erastovalidia [21]

Answer:

Explained

Explanation:

Resistance R in a current flow through an object is given by

R= \frac{\rho L}{A}

ρ = resistivity of the material

L= length of the object

A=  area of cross section

clearly resistance is directly dependent on length of the object.This means greater the length larger will be resistance to current.

thermal resistance R_th is given by

R_{th} = \frac{L}{KA}

L= length of the object

A=  area of cross section

K = Conductivity of the material

thermal resistance is also is directly dependent on length of the object.This means greater the length larger will be resistance to current.

8 0
3 years ago
Read 2 more answers
Suppose we wrap a string around the surface of a uniform cylinder of radius 38.0 cm that is supported by an axle passing through
liraira [26]

Answer:

Angular acceleration = 23.68 rad / s²

Explanation:

Given that,

acceleration = 9m/s²

Therefore acceleration of string is 9m/s²

since string is constant in length

cylinder of radius 38.0 cm = 0.38m

Angular acceleration = a / r

Angular acceleration = 9 / 0.38

                                   = 23.68 rad / s²

Angular acceleration = 23.68 rad / s²

4 0
3 years ago
What is the length of a simple pendulum with a period of 11.5 s?
givi [52]
Using the equation for period length for a pendulum, you get 32.829 meters.
4 0
3 years ago
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