Bradley gets an x-ray at a radiology clinic that employs its own technologists and radiologists. Would the coder at the clinic r

The fundamental equation is derived from Mr. Planck: E=h \nu, where h is Planck’s constant and ν is the frequency. This relationship describes the energy per photon at a specific frequency. Although a wavelength is provided, it can easily be converted to frequency using the equation: c= lambda / nu, where c denotes the speed of light; λ (lambda) is the wavelength; and ν is the frequency. Once the energy of a photon with a wavelength of 550nm is determined, it will show how many photons are needed to gather 10^-18J. Remember to pay attention to the units.

Response:D

Clarification:

Provided

mass of object

Distance traveled

resulting velocity

energy conservation occurs starting when the object begins its descent and reaches a speed of 12 m/s

Initial Energy

Final Energy

where is the work done by friction, if any

As friction is present, this indicates an open system with a net external force of zero.

An open system allows for the exchange of energy and mass, and the presence of friction indicates that it is indeed an open system.

Answer:

2.57 hours

Explanation:

Let t (in hours) represent the time it takes for Elsie to walk until they are separated by 25 miles. Since Steve starts 2 hours earlier, his time will be t + 2.

The distance covered by Steve heading north is

The distance Elsie travels heading west is

The separation between Steve and Elsie is

We can solve for t by squaring both sides.

Therefore, t = 2.57 or t = -4.13.

Since t cannot be negative, we select t = 2.57 hours.

Answer:

2.45 m

Explanation:

To begin, we need to determine the book's time of flight, utilizing the equation for vertical motion:

with

h = 1.19 m representing the height traveled by the book

g = 9.8 m/s^2 being the gravitational acceleration

t symbolizing the time of flight

By solving for t,

Next, we calculate the horizontal distance the book travels, defined by

where

denotes the horizontal velocity

t = 0.49 s being the time of flight

By substituting,

Thus, the book lands at a distance of 2.45 m.

Answer:

v' = -18 m/s

Explanation:

• Assuming no external forces act during the collision, the overall momentum must be preserved as follows:

       

• The initial momentum can be defined this way (with the initial direction of the ball considered positive):

       

• The final momentum can be formulated as follows (given that v'b moves in the opposite direction to vb):

       

• If we consider that Mc >> mb, we assume the car's speed remains unchanged as a result of the collision, allowing us to substitute V'c for Vc in (3).
• Consequently, we can rewrite (3) like this:

       

• By substituting (2) and (4) back into (1), we arrive at:

       

• By simplifying and rearranging, we can solve for v'b like this:
• , which makes sense because it's as though the ball collided with a wall and simply reversed its velocity post-collision.