04/26/24

Work of charge and potential difference-please help:)
It takes 4.0 μJ of work to move a 11 nC charge from point A to B. It takes -6.0 μJ of work to move the charge from C to B.What is the potential difference VC−VA?
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04/23/24

Rotational motion question
A long rod of length L is pivoted about its left end. It is released from an angle 𝜃 above the horizontal. What is the magnitude of the angular acceleration of the rod about the pivot when the rod... more
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03/04/24

Physics Oscillation question-please help walk me understand what to do:)
The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.15 Hz , and the acceleration of the top of the building can reach 1.8 % of the... more
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02/28/24

Find the Acceleration of a swinging bar and the forces on the struts
https://prnt.sc/G96geXdw_COLThe link leads to the picture of the problem. Essentially the problem is a 12 kg bar (4m in length) attached to the ceiling by 2 massless struts held initially at an... more
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02/21/24

Electric Field Lines on a Dipole
The next two questions refer to the following situation: Two charges of equal magnitude but opposite polarity (one +q and one –q) are arranged as shown.What is the most accurate depiction of the... more
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02/15/24

Please find the gauge pressure of the water flowing through the smaller pipe Atmospheric pressure is 1.013 × 10^5 Pa .
Water flows at speed of 5.4 m/s through a horizontal pipe of diameter 3.2 cm . Supposea thick pipe is connected to a thinner pipe. In the first pipe the gauge pressure P1 of thewater is 1.7 atm .... more
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02/12/24

Does a solid, like a night stand, vibrate macroscopically because the atoms and molecules that make up the solid vibrate?
We know particles that make up solids vibrate, but do the solids vibrate themselves because of that? Like a structure or object like a night stand, does that night stand vibrate macroscopically... more
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02/11/24

Charges (physics)

A student tests three objects, A, B, and C, for electrical interactions. Object A is repelled by a glass rod that has been rubbed with silk. Object B attracts small bits of paper. Object C attracts... more
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02/07/24

Physics-WATT and LED question. Please help walk me through it:)
An individual white LED (light-emitting diode) has an efficiency of 20% and uses 1.0 W of electric power. How many LEDs must be combined into one light source to give a total of 1.6 W of... more
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02/05/24

Algorithm Runtime
I’m confused on the runtime for an if-statement and how to find it. This is my work so far, can someone explain what runtimes for if statements are like and how they work.  Give an analysis of... more
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02/01/24

Missing value in rectangular prism
help please!! H=13cm W=2cm, and the total volume is 104cm cubedthe length is missing and i'm really new to physical science as i just started learning it as a homeschooler.it's on a quiz to review... more
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12/06/23

PHYSICS-Pipe problem
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 4.0 m/s. What is the speed in the second segment? What is the volume flow rate... more
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12/06/23

Physics Problem-drain plug
A rectangular trough, 1.7 m long, 0.60 m wide, and 0.40 m deep, is completely full of water. One end of the trough has a small drain plug right at the bottom edge.When you pull the plug, at what... more
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12/03/23

physics question about kinematics
A ball is thrown into the air from a height of 2.00 m and with an initial velocity of 5.00 m/s at an angle of above the horizontal. Select all of the quantities that are zero at some time (not... more
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11/13/23

We are learning series and I really need help with this. I can't find any help with these, could someone please help? Thanks!
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11/05/23

Physics homework problem-Very confused, due tomorrow, please help:)
Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of... more
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11/03/23

Pls help, sorry for the trouble

Link to image of the problemThank you!
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10/25/23

How much work is done on the block between its release at height h and its ascent to its next maximum height?
A block is released from rest, at a height h, and allowed to slide down an inclined plane. There is friction on the plane. At the bottom of the plane, there is a spring that the block will... more
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10/19/23

If the mass of the earth 5.98 × 1024 kg, what is the magnitude of the earth’s acceleration toward the apple? Answer in units of m/s 2 .
When you drop a 0.39 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s 2 toward the earth’s surface. According to Newton’s third law, the apple must exert an equal but opposite... more
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10/18/23

Skydiver-Speed problem
A skydiver with a mass of 47 kg has a parachute with an area of A=44 m^2. After opening the parachute and reaching the terminal speed with the parachute, how fast does she descend through the air?
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10/18/23

AIRCRAFT-Force and Speed question (need help for exam Friday)
A certain aircraft has a mass of 301,000 kg. At a certain speed is 27.0 m/s. If the braking force is a constant 445,000 N, what is the speed of the airplane 10.0s later?
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10/17/23

Answer this Physics Question:

If I were to imagine making an entire experiment about Newton's three laws that was performed on a train traveling at a constant speed, would my recorded data change and why or why not?
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10/15/23

Work to expand spherical shell to r3
A capacitor is made out of two concentric spheres. The inner is a conducting solid sphere with an initial charge of Q, radius r1, and electric potential V. The outer is a conducting spherical shell... more
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09/15/23

java method getUserGuess
Method name: getUserGuessParameter(s): a Scanner objectReturn type: StringPurpose: This method asks the user for a 5-letter word and returns the word. This method must repeatedly ask for a word... more
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08/31/23

True or false computer introduction
a. Applications requiring complex, sophisticated mathematical calculations use mainframesb. Instead of the term, port, the term, connector, sometimes is used to identify audio and video ports
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