acceleration of the car = 0.33 m/s²
Explanation:
To calculate the acceleration of the car we use the following formula:
acceleration = change in velocity / time
change in velocity = final velocity - initial velocity
change in velocity = 23 m/s - 13 m/s = 10 m/s
change in velocity = 10 m/s
acceleration = 10 m/s / 30 s
acceleration = 0.33 m/s²
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A) 
The energy of an x-ray photon used for single dental x-rays is
The energy of a photon is related to its wavelength by the equation
where
is the Planck constant
is the speed of light
is the wavelength
Re-arranging the equation for the wavelength, we find
B) 
The energy of an x-ray photon used in microtomography is 2.5 times greater than the energy of the photon used in part A), so its energy is
And so, by using the same formula we used in part A), we can calculate the corresponding wavelength:
Answer:
oxygen
Explanation:
as it is in the air it can't be depleted or used up
Answer:
carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration.
Explanation:
Answer:
175J
Explanation:
Work done is given by the product of the force applied and the distance travelled as a result of that force.
Or in formula , W=F×d
Thus,
W= 35 × 5.0=175 J or 1.8 e2 J
