7. Determine the velocity of the electron in a positronium atom which is shown in the figure (figure is attached). Assume the radius of the positronium atom is 2 x 5.3 x 10 cm a) What is the total angular momentum about the center of the positronium atom in Problem 7? b) What is the force on the electron due to the positron? (Give both magnitude and direction.)

Q: the ratio of majority carriers to minority carriers a dc voltage is applied to control the operation…

A:

Q: A copper wire 2.5 mm in diameter is 4 m long and is used to suspend a 2.0 kg mass from a beam. If a…

A:

Q: Determine the magnitude of the resultant and vector B if R=A+B. - B 350+ 8 in. 5 in. (8.5 in. A = 35…

A: Draw the free-body diagram of the system.

Q: At a horizontal distance of 45 m from a tree, the angle of elevation to the top of the tree is 26°.…

A: Given Angle of elevation = 26° Horizontal distance = 45 m We have to calculate the height how tall…

Q: During an auto accident, the vehicle's air bags deploy and slow down the passengers more gently than…

A:

Q: Part A - Which of the following is not true? In a region with no charges, Maxwell's equations take a…

A:

Q: A vector A has components A -5.00 m and A, = 9.00 m. Find (a) the magnitude and (b) the direction of…

A: Given data:  x-component of the vector (Ax) = -5.00 m y-component of the vector (Ay) = 9.00 m…

Q: Carry out the given conversions from one metric unit of length to another. 27.5 Mm = 5.63 nm = ×10⁰…

A:

Q: A 0.0055-kg shuttlecock moving to the left with a speed of 40.0 m/s is struck by a badminton racket…

A: M=0.055 Kg v1=-40 m/s v2=+65 m/s F=+45 N t=??

Q: 3. Consider the hydrogen atom as a small planetary system with the proton playing the role of the…

A: Here, the hydrogen atom is considered to be a system similar to planetary motion with the proton as…

Q: A=48N due West ,B=35N due North,C=50N N33°E, D=62N S 25.5° W ,E=70N W57°S find the Resultant of…

A:

Q: It is late at night and your are on the road in your SUV on Interstate 80. You are moving at a speed…

A:

Q: A log is floating on swiftly moving water. A stone is dropped from rest from a 64.6-m-high bridge…

A: Given Data Height of the bridge h = 64.6 m speed of log v = 3.12 m/s Let t be the time taken by the…

Q: A block of mass m₁ = 3.32 kg on a frictionless plane inclined at angle 0 = 34.6° is connected by a…

A: Given Mass of the two blocks are given as m1=3.32 kg and m2=2.43 kg Angle of inclination of the…

Q: Find the value and the % of uncertainty of the following measurements 1. 90 ± 2cm 2. 259 ± 5mm 3.…

A:

Q: Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four…

A:

Q: Use the approximate values from this table to solve the problem. How many heartbeats are there in a…

A: We have to calculate number of heartbeats are there in a lifetime

Q: Q1\A: Consider these two vectors A-2i+3j+5k and B-5i+3j+10k, find the following C-A.B

A: Given data:  Two vectors A = 2i + 3j + 5k And B = 5i + 3j + 10k Required: The dot product of vector…

Q: Determine the following resultants of the position vectors given in the figure, and show the results…

A:

Q: The angular position of a point on a rotating wheel is given by 0 = 8.07 +5.33t2 + 2.90t³, where 8…

A: Given that:θ=8.07+5.33t2+2.90t3

Q: You measure the mass of your phone to be 161 grams, but the manufacturer's website lists it as 163.9…

A: Given data:  Actual mass (m) = 161 g Expected mass (m') = 163.9 g Required:  The percentage error

Q: The angular separation in degrees of two objects is (physical separation × 360°) / (2 π × distance).…

A:

Q: a car moves 50m in 9.5s while smoothly slowing to a final speed of 3.8 m/s. Find a) the original…

A: Solution:- Given that the car moves 60 m in 9.5 second. Thus  (A) Using 4th equation…

Q: The system in the figure is in equilibrium. A concrete block of mass 337 kg hangs from the end of…

A:

Q: 4) For the vectors given in the following figure, use a graphical method to find the following…

A:

Q: reference angle of 830 degrees

A:

Q: A projectile is launched from and returns to ground level, as the figure shows. There is no air…

A:

Q: Radiation heat transfer occurs in an object that should place in vacuum space. (True or False) False…

A:

Q: Q7. At room temperature (300 K) with the Fermi level located exactly in the middle of the bandgap,…

A: Given, Probability that a state is filled is 0.01

Q: Upload a drawing: Finally, construct a graph showing how the total energy of the system changes as…

A: Energy is given by E ∝ Q1Q2/r E = kQ1Q2 / r Q1 and Q2 are the charges on the ions r = Distance…

Q: A laser produces 22.0 mW of light. In 4.00 hr, the laser emits 7.08×10^20 photons.What is the…

A:

Q: Consider hot Jupiter with a temperature of 3138 K orbiting the star Vega at what wavelength in nm…

A: given-          Temperature of jupiter =3138 K

Q: Q5\1: A damping harmonic oscillator with, m-5 kg, k-180 N/m and c-30 kg/s is subject to a driving…

A:

Q: 0x10³ 0x10² O 4.0 × 10² 4.0 x 105 O 4.0 × 10¹ O 16.0 x 105 O 16.0 x 10²

A:

Q: 1. A flower pot falls a window of a three-storey apartment. How far has it fallen after 2 seconds?…

A: since you have asked multiple questions we will solve first question for you. Please post remaining…

Q: A POSITIVE TEST CHARGE WAS IMMERSED IN AN ELECTRIC FIELD REGION DIRECTED TO THE RIGHT, IN WHAT…

A: Given Information:- Nature of the charge is positive. Direction of the electric field is towards…

Q: NASA decides to chase the International Space Station (ISS) after the alien ship, reaching…

A:

Q: The vector in the drawing has a magnitude of 962 units. Determine the (alx and (bly components of…

A:

Q: 835.6 MHzMHz (common frequency used for cell phone communication) Express your answer in meters…

A:

Q: Radiation heat transfer coefficient means the ability of particle to transfer heat in solid. (True…

A:

Q: Activity 4: Finding the Resultant Direction: Solve the following worded problems on a separate sheet…

A:

Q: Q2) Calculate the acceleration of a particle of mass (m = 6.68x10-25 kg) and relative velocity 0.3…

A:

Q: A ball thrown horizontally from the top of a building hits the ground in 0.4 s. If it had been…

A: According to question we need to find If it had been thrown with four-times the speed in the same…

Q: A sound of wavelength 1.2 m and another of wavelength 1.0 m are played simultaneously. What beat…

A:

Q: You are the kicker for your local football team. You are practicing your kicks and trying to make a…

A:

Q: A copper wire 2.5 mm in diameter is 4 m long and is used to suspend a 2.0 kg mass from a beam. If a…

A:

Q: Answer only 10-15 thank you so much:))

A:

Q: A plane electromagnetic wave is said to be "linearly polarized" when it is characterized by the…

A: A plane electromagnetic wave is said to be "linearly polarized". To choose which of the given…

Q: You are an astronomer on planet Tirth, which orbits a distant star. It has recently been accepted…

A:

Q: 1. The fastest measured pitched baseballleft the pitcher’s hand at a speed of 45.0 m/s. If the…

A:

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: