12,748 Answered Questions for the topic physics

Physics

03/16/23

A string vibrates at its third-harmonic frequency. A point 34 cm from the left end is the first point at which the amplitude is half the maximum amplitude. What is the wavelength?
explain with physics
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Physics

03/16/23

The distance between two successive crests of a certain transverse wave is 1.80 m. Eight crests pass a given point along the direction of travel every 13.0 s. Calculate the wave speed.
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Physics

03/16/23

A wave traveling in the positive x direction with a frequency of 31.0 Hz is shown in Figure 12-29.
Find the following values for this wave.(a) period:(b) speed:
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Physics

03/16/23

A wave traveling in the positive x direction with a frequency of 27.0 Hz is shown in the figure below. A = 8.3 cm and B = 10 cm. Find the following values for this wave.
(a) period:(b) speed:
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Physics

03/16/23

A wave traveling in the positive x direction with a frequency of 27.0 Hz is shown in the figure below. A = 8.3 cm and B = 10 cm. Find the following values for this wave.
(a) period:(b) speed:
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Physics

03/16/23

You dip your finger into a pan of water three times each second, producing waves with crests that are separated by 0.14 m.
Determine the frequency of these water waves:What is the period of the water waves:Find the speed of the waves:
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Physics

03/16/23

An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. Fir
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First, he tries to throw a rope to his... more
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Physics

03/15/23

Temperature and
A machinist wishes to insert a brass rod with a diameter of 4 mm into a hole with a diameter of 3.993 mm. By how much would the machinist have to lower the temperature (in °C) of the rod to make it... more
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03/15/23

Identify the affect the equilibrium of the system on the following given situation.
Consider the reaction that has reached a state of equilibrium at 200oC:CO(g) + 3H2(g) ⇌ CH4(g) + H2O(g)   exothermic Determine whether each of the following will increase the equilibrium... more
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Physics

03/14/23

CD Player Disk Problem
A CD player disk starts from rest, and has a positive angular acceleration (it begins to spin quicker and quicker in the counter clockwise direction) of 3.8 radians per second squared, for... more
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03/14/23

Finding missing Scalars - Linear Algebra

Hi , I have been very confused on this question . Your help is very very appreciated.Consider the vectorsu = [ 0,1,1] and v = [ 2 , -2 , 1 ]Let w = mv + k√10u * vwhere m and k are elements of all... more
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Physics

03/14/23

Compute payload at sea level
A modern day zeppelin holds 7290 m^3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0 degree C and 1 atm.
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Physics

03/13/23

what is the Gauge Pressure
The depth of the pacific ocean in the Mariana Trench is 56, 198 ft. What is the gauge pressure at this depth?
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Physics

03/13/23

Kinematic equation
I need help with a kinematic equation for an object in free fall. Define each variable
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Physics

03/13/23

Physics Question
An empty storage tank has a volume of 1,900 ft3. What is the buoyant force exerted on it by the air? (Assume the air is at 0°C and 1 atm.)what is the answer in lb?
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Physics

03/13/23

Looking for mass
What is the mass of a large balloon used to sample the upper atmosphere that is filled with 355 m^3 of helium? What is the mass of the helium in kg?
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Physics

03/13/23

What is definition of waves
What is the definition of waves
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Physics

03/12/23

A trio of 4Ω resistors are all connected in series to a 24 V battery, what is the total resistance of the circuit?
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Physics

03/12/23

A trio of 4Ω resistors are all connected in series to a 24 V battery, what is the total resistance of the circuit?
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Physics

03/12/23

What is the magnetic flux through the square due to this field?
A 2m long metal wire is formed into a square and placed in the horizontal xy-plane. A uniform magnetic field is oriented at 30° above the horizontal with strength of 0.344 T. What is the magnetic... more
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Physics

03/11/23

work power and forces
The ravens safety Chuck Clark has a mass of 93kg. During a game, Clark tackles the 83 kg wide reciever for the steelers, Diontae Johnson. Chuck was running in a positive direction with a velocity... more
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03/10/23

Calculate the mass of air in the sphere using the State 1 pressure and temperature.
Temperature = 23.25 CPressure = 100 KPa The Volume = 5.352 x 10^-4 m^3Calculate the mass of air in the sphere using the State 1 pressure and temperature.
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Physics

03/10/23

Torque Question
A) A 372.4 N child and a 262.5 N child sit on either end of a 3.5 m long seesaw. How far from the 372.4 N child should the pivot be placed to ensure rotational equilibrium? Disregard the mass of... more
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Physics

03/09/23

Mickey, a daredevil mouse of mass 0.0191 kg, is attempting to become the world's first "mouse cannonball." He is loaded into a spring‑powered gun pointing up at some angle and is shot into the...
Mickey, a daredevil mouse of mass 0.0191 kg, is attempting to become the world's first "mouse cannonball." He is loaded into a spring‑powered gun pointing up at some angle and is shot into the air.... more
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Physics Math

03/08/23

E = mc^2 - kTΔS - Σqi^2 - ℏ/2ΔxΔp
E = mc^2 - kTΔS - Σqi^2 - ℏ/2ΔxΔp"This equation expresses the relationship between energy, matter, entropy, uncertainty, and the electromagnetic force (Σqi^2). The kTΔS term accounts for the... more
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