an electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV. Determine the energy of the photon, in joules.

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Answer 1

Answer: Hi There! :)

An electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV.Determine the energy of the photon, in joules.

kg=15000J

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shelly starts from rest on her bicycle at the top of a hill. After 6.0s she has reached a final velocity of 14m/s. what is shellys acceleration.

Answers

Answer:

Acceleration, $a=2.33\ m/s^2$

Explanation:

It is given that,

Initial speed of Shelly, u = 0

After 6 seconds, she has reached a final velocity of 14 m/s, v = 14 m/s

We need to find the acceleration of Shelly. The formula to find the acceleration is given by :

$a=(v-u)/(t)$

$a=(14\ m/s-0)/(6\ s)$

$a=2.33\ m/s^2$

So, the acceleration of Shelly's is $2.33\ m/s^2$ . Hence, this is the required solution.

divide 14 by 6 and there is your answer with the unit of m

A 70.0 kg skier is at rest at the top of a 120m hill. Assuming friction is negligible.A) What is the speed of the skiers at the bottom of the hill?

Answers

Answer:

49 m/s

Explanation:

Initial potential energy = final kinetic energy

PE = KE

mgh = ½ mv²

v = √(2gh)

v = √(2 × 10 m/s² × 120 m)

v = 49 m/s

A circuit component with a high resistance will have a low electric current. a. True
b. False

Answers

You haven't said what 'high' resistance or 'low' current means, so there's way not enough info to nail the statement as true or false. The most precise answer is "certainly could be but not necessarily". Anyway, the current in the circuit depends on BOTH the resistance AND the voltage. So without knowing the voltage too, you can't say anything about the current.

The point on a graph where X and Y values meet is called A. the axis.
B. the origin.
C. the starting line.
D. an intersection point.

Answers

The point where x and y values meet is called the origin.

the point where they meet at is called the origin

An airplane on a runway accelerates at 4.0 meters/second2 for 28.0 seconds before takeoff. How far does the plane travel on the runway before takeoff?

Answers

the plane travels a distance of 1568 meters on the runway before takeoff. To find the distance traveled by the airplane before takeoff, we can use the following kinematic equation: $d = v_i t + (1)/(2)at^2$