Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is comple
te before submitting your answer. ResetHelp small backward a whiplash large no whiplash forward decreases increases 1. As the child rides in the seat, his/her head and back rest against the padded back of the seat. If the car is brought to a rapid stop (as in a head-on collision) the child will continue to move at the before-crash speed until he/she hits something. 2. The object hit is the back of the seat (supporting the entire back and head) which is padded and as a result the force to the maximum value over a time interval. 3. Granted this time interval may be but that is considerably better than instantaneous. Also since the head is supported, there will be .
2 answers:
Answer:
1* Forward 2* Increases 3*Small, *Whiplash respectively .
Explanation:
The task is to fill in the correct options from the figure below.
A whiplash is an injury to the upper spine caused by a violent j e r k of the head in either a backward or forward or side to side direction, resembling the motion of a whip.
1.As the child rides in the seat, his/her head and back rest against the padded back of the seat. If the car is brought to a rapid stop (as in a head-on collision) the child will continue to move *forward at the before-crash speed until he/she hits something.
2. The object hit is the back of the seat (supporting the entire back and head) which is padded and as a result the force *increases to the maximum value over a time interval.
3. Granted this time interval may be *small but that is considerably better than instantaneous. Also, since the head is supported, there will be no *whiplash.
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Answer:
The magnetic field in the System is 0.095T
Explanation:
To solve the exercise it is necessary to use the concepts related to Faraday's Law, magnetic flux and ohm's law.
By Faraday's law we know that
Where,
electromotive force
N = Number of loops
B = Magnetic field
A = Area
t= Time
For Ohm's law we now that,
V = IR
Where,
I = Current
R = Resistance
V = Voltage (Same that the electromotive force at this case)
In this system we have that the resistance in series of coil and charge measuring device is given by,
And that the current can be expressed as function of charge and time, then
Equation Faraday's law and Ohm's law we have,
Re-arrange for Magnetic Field B, we have
Our values are given as,
Replacing,
Therefore the magnetic field in the System is 0.095T
Answer:
Work done = 35467.278 J
Explanation:
Given:
Height of the cone = 4m
radius (r) of the cone = 1.2m
Density of the cone = 600kg/m³
Acceleration due to gravity, g = 9.8 m/s²
Now,
The total mass of the cone (m) = Density of the cone × volume of the cone
Volume of the cone =
thus,
volume of the cone = = 6.03 m³
therefore, the mass of the cone = 600 Kg/m³ × 6.03 m³ = 3619.11 kg
The center of mass for the cone lies at the times the total height
thus,
center of mass lies at, h' =
Now, the work gone (W) against gravity is given as:
W = mgh'
W = 3619.11kg × 9.8 m/s² × 1 = 35467.278 J