07/07/21

"Q1= +6.60 x 10-6 C, Q2= +3.10 x 10-6 C, and Q3= +5.30 x 10-6 C. What is the magnitude and direction of the net force on charge q2? Q1-Q2=0.350 and q2-q3=0.155?"
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07/06/21

Can someone explain or show me how to do This so I can use this as an example

Three identical 22.0*10^-6 C charges are on the corners of an equilateral triangle of side 0.111 m. What is the magnitude of the net force on q1 (60 degree interior angles)?
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07/06/21

Three identical 22.0*10^-6 C charges are on the corners of an equilateral triangle of side 0.111 m. What is the magnitude of the net force on q1 (60 degree interior angles)?
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07/06/21

Static equilibrium and torque
A board of mass 6.0 kg is connected to a hinge at one end. Here, L = 3.0m. A force F is applied vertically at the other end, and the board is tilted at 𝜃 = 30° with the horizontal. A 45-kg block... more
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07/05/21

In the diagram, q1, q2, and q3 are in a straight line. Each of these particles has a charge of -2.35 x 10-6 C. Particles q1 and q2 are separated by 0.100 m and particles q2 and q3 are separated

In the diagram, q1, q2, and q3 are in a straight line. Each of these particles has a charge of -2.35 x 10-6 C. Particles q1 and q2 are separated by 0.100 m and particles q2 and q3 are separated by... more
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07/04/21

medical physics
: The doctor achieved a neutral state during retinoscopy by adding 2- diopters: myopia and the degree of abnormality: ......... diopters.
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07/04/21

Medical physics

A spectacle maker wants to make a lens with a power of 3 diopters from a material with a refractive index of 1.5; After cutting, what is the radius of each side? (Suppose two surfaces of a lens... more
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07/04/21

Moments and center of mass.
"Moment" in physics is given by "force X distance" but as i was studying a topic "Moments and centers of mass" in the chapter "Applications of integral" it say here, that it is "Mass X... more
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06/28/21

What is the speed of sound (in m/s) in helium at the normal boiling temperature of water?
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06/27/21

WORD PROBLEMS 2
  A force of 10 lbs is used to move a 15-lb box across a horizontal deck, a distance of 5 ft. If the force makes an angle of 300 with the floor,     a) How much work is done?    b) What is its... more
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06/27/21

word problems - speed and velocity
A truck’s speed increases uniformly from 36 kph to 108 kph. In 20 seconds. Determine the following: Average speed (velocity) The acceleration in meter/sec. The distance in meter covered during this... more
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06/25/21

The International Space Station maintains an orbital radius of about 4.34 km (from the center of the Earth), and is moving at 5,698 km/s through space.
The International Space Station maintains an orbital radius of about 4.34 km (from the center of the Earth), and is moving at 5,698 km/s through space. What is the magnitude of the acceleration of... more
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06/24/21

Nuclear Physics
Write down the numerical value of charge and mass of alpha particle
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06/16/21

An object is thrown at an angle of 30 degrees above the horizontal, with a speed of 88.2 m/s.

How long does it take the ball to reach the maximum height?What is the maximum height reached by the ball?What is the magnitude or the object's velocity 2 seconds after launch?What is the... more
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06/14/21

I need help with a physics question
Open the simulation and double check that the settings on your screen are the same as shown in the image below. In this simulation, a string is pulling on a block, dragging it so that it moves... more
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06/06/21

Which of the following binomials is a factor of the expression 8y 2 – 10y – 3?
F. (4y – 1) G. (4y + 1) H. (2y + 3) J. (y – 3)
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06/03/21

In a transverse wave, the particles of the medium move in circles move in ellipses move parallel to the direction of travel of the wave or move perpendicular to the direction of travel of the wave?
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06/03/21

As the frequency of a water wave is increased, does the wavelength increase, decrease, not change, or depend on medium?

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06/02/21

What is the plane's velocity relative to the ground?

The pilot of a light plane heads due north at an air speed of 400 km/h. A wind is blowing from the west at 60 km/h. What is the plane's velocity relative to the ground? How far off course would... more
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06/01/21

Wave crests are passing the anchor chain of an anchored boat every 5 seconds. If the wave troughs are 15 m apart, what is the speed of the waves?
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05/20/21

4 sin theta + 3 sqaure root 3= square root 3
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05/19/21

An object oscillates as it moves along the x-axis. Its displacement varies with time according to the equation (see description for full problem)
An object oscillates as it moves along the x-axis. Its displacement varies with time according to the equation x=4sin(pi t + pi/6) where t=time in seconds and x=displacement in meters What is the... more
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05/18/21

What is the measure of a central angle in a circle that has a radius of 12.5 cm and an arc length of 5 cm?
A) 286.6 radians B) 0.022 radiansC) 3.125 radiansD) 0.4 radian
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05/18/21

Angular Frequency and Waves
If the mass is tripled in a mass spring system undergoing simple harmonic motion then what is the magnitude of the acceleration of the system at any position?  Please explain in your own words and... more
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05/18/21

please answer 3 questions
(a) Using a small pendulum of length .234m, a student on top of a tree counts 80 oscillations in 70 seconds. What is the value of ‘g’ in this location?  (b) What is the length of the... more
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