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Questions tagged 'Physics'

312 questions

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Anonymous

Nov 26, 2024

First Year Physics Help…?

Sam, who has a mass of 75 kg, accelerates across a level snow surface using his jet-powered skis. The skis generate a thrust of 197 N, and the coefficient of kinetic friction between the skis and the...

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Anonymous

Nov 26, 2024

Can anyone help me solve this physics problem? please?

I need assistance with a physics problem related to a current loop in a motor. The loop has an area of 0.85 cm² and carries a current of 240 mA in a uniform magnetic field of 0.62 T. I am trying to ca...

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Anonymous

Nov 26, 2024

A laser pulse with wavelength 505nm contains 4.85mJ of energy.?

A laser pulse with a wavelength of 505 nm emits 4.85 mJ of energy. How many photons are contained within this laser pulse?

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Anonymous

Nov 26, 2024

A guy named Joe, who is 1.6 meters tall, enters a room in which someone has placed a large convex mirror with?

A man named Joe, who is 1.6 meters tall, enters a room where a large convex mirror has been placed. The mirror has a radius of curvature (R) of 30 meters and has been cut in half, with its axis positi...

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Anonymous

Nov 26, 2024

A gas with an initial temperature of 950 C undergoes the process shown in the figure .?

A gas with an initial temperature of 950 °C undergoes the process shown in the figure. What is the final temperature (please provide your answer in Kelvin)? Additionally, how many moles of gas are pre...

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Anonymous

Nov 26, 2024

Physics question, help please….?

A block with a mass of 0.5 kg is pressed against a horizontal spring with negligible mass, compressing the spring by a distance of 0.2 m. When the spring is released, the block travels across a horizo...

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Anonymous

Nov 23, 2024

Which statement best describes how work and power are different?

Which statement best describes the differences between work and power? To calculate work, we need to know both force and distance. In contrast, to calculate power, we need to understand force and velo...

Find the equations of planes that just touch the sphere (x−2)2+(y−4)2+(z−4)2=25 and are parallel to xy plan, the yz plane, and xz plane.?

Find the equations of the planes that are tangent to the sphere defined by the equation ((x - 2)^2 + (y - 4)^2 + (z - 4)^2 = 25) and are parallel to the xy-plane, the yz-plane, and the xz-plane.

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Anonymous

Nov 23, 2024

A question for bike riders, How come the back wheel is always following the front one, Is that odd or what. ?

Have you ever noticed how the rear wheel of a bike seems to follow the front wheel closely? Why does this happen, and is it something unusual? I'd love to hear your thoughts and insights on this!

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Anonymous

Nov 22, 2024

current and drift velocity?

A large lightning bolt carried a current of 20,000 A and moved 30.0 C of charge. What was the duration of the lightning bolt's discharge?