12,748 Answered Questions for the topic physics

Physics Calculus

04/13/23

In rectangular aperture or single slit diffraction, how does one find the location of the secondary MAXIMA of the diffraction pattern and their amplitude for a normalized central amplitude of unity?

Once you determine the transcendental equation that determines the maxima, use a graphing calculator (free online version) to find the exact solutions without trying to be consumed by numerical... more
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Physics

04/13/23

Rotation physics

A student sits on a freely rotating stool holding two weights, each of mass 3.09 kg. When his arms are extended horizontally, the weights are 1.08 m from the axis of rotation and he rotates with an... more
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Physics

04/13/23

A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destinations. A 72800 cm3 gas-filled...
A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destinations. A 72800 cm3 gas-filled... more
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Physics

04/13/23

You come across an open container that is filled with two liquids. Since the two liquids have different densities, there is a distinct separation between them. Water which has a density of 𝜌w=1.00×10
You come across an open container that is filled with two liquids. Since the two liquids have different densities, there is a distinct separation between them. Water, which has a density... more
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Physics

04/12/23

A 0.366 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger
A 0.366 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The... more
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04/12/23

How do I find v3 in this circuit?
I'm going through this EMG circuit lab for practice (https://my.ece.utah.edu/~ece2240/ECE2240_Lab1b.pdf) but I'm stuck on the following calculations on pages 8-9.1) Use the circuit model in Fig.... more
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04/12/23

Static Equilibrium
Please help me answer the following question, please provide steps, and work. I know the question is specific, but I did not come up with it. Thanks!Question:In the movie, The Matrix Reloaded, Neo... more
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Physics

04/11/23

What is the solution to this?
A sample of an ideal gas goes through the process shown in the figure below. From A to B, the process is adiabatic; from B to C, it is isobaric with 345 kJ of energy entering the system by heat;... more
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Physics

04/11/23

torque and angular
Mary is doing a lateral raise exercise using a 100N dumbbell. She is performing an isometric contraction and holds her arm still in a position in which the horizontal distance from the dumbbell to... more
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Physics

04/11/23

angular velocity
The hammer throwers arm is 0.8m long and the hammer extends an additional 1.2m. It takes 0.75 seconds to complete 1 revolution (angular displacement of 6.28 rad) before the thrower releases the... more
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Physics

04/11/23

angular velocity
A femur which is 0.5 m long (meaning the end of the femur is 0.5 m from the axis of rotation) moves through an angle of 0.52 rad in 0.5s.a) what is the average angular velocity of the end of the... more
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Physics

04/11/23

angular displacement
An athlete is performing a vertical jump. The first jump indicates max knee flexion prior to the jump. The knee flexion angle is 86 degrees and the time is 2.25 seconds. At peak height, the knee... more
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04/11/23

Static Equilibrium

Please help to answer the following question - A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 300 N and is 4.50 m long. What is the tension... more
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04/11/23

Collisions in Real Life

Please help me answer the following question, please provide steps, and work. Question: In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When... more
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Physics Science

04/10/23

A uniform disk with a radius of 0.8 m and mass of 58.3 kg rotates at 5.4 rad/s. What is the rotational kinetic energy of the disk?
Please send an answer and explanation ASAP I'm overcomplicating this question.
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Physics

04/10/23

physics 101 lost energy

A 8,300-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 2 m/s. Compute how much kinetic energy was... more
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Physics

04/08/23

Did I do this correct? If not, what is the correct way to solve it?
An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10.0°C. Two metallic blocks are placed into the water. One is a 75.0-g... more
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Physics

04/08/23

Force due to magnetic field from two perpendicular wires
Two wires, 1 and 2, are carrying currents I1 and I2. They are perpendicular to each other and separated by distance d.What is the force exerted on a segment of wire 2 of length L from the point... more
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Physics

04/08/23

It takes a physics student 3hrs to travel Toronto to Waterloo at the rate of 96km/h then takes her 2 hrs to travel back what was the speed on her way back
this is from Grade 11 kinematics, please give me the whole answer
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Physics

04/07/23

1st question: A toy rocket is launched straight up from the top of a 15m high cliff v1 = 21m/s how long will it take the rocket to hit the ground after launch.

Its about physics grade 11 kinemetics
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Physics

04/07/23

magnification and focal point
A camera is equipped with a lens with a focal length of 32 cm. When an object 1.2 m (120 cm) away is being photographed, what is the magnification?
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Physics

04/07/23

Read below... Thank you
The focal length of a diverging lens is negative. If f = −16 cm for a particular diverging lens, where will the image be formed of an object located 70 cm to the left of the lens on the optical axis?
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Physics

04/07/23

focal point and optical
The focal length of a diverging lens is negative. If f = −16 cm for a particular diverging lens, where will the image be formed of an object located 70 cm to the left of the lens on the optical axis?
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Physics

04/07/23

equation and image
The equation connecting s, p, and f for a simple lens can be employed for spherical mirrors, too. A concave mirror with a focal length of 7 cm forms an image of a small object placed 15 cm in front... more
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Physics

04/06/23

converging angles
A 2.8 cm-tall object stands in front of a converging lens. It is desired that a virtual image 2.1 times larger than the object be formed by the lens. How far from the lens (in cm) must the object... more
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