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Physics
Page 94
Questions (146,483)
Catching a wave, a 65 kg surfer starts with a speed of 1.3 m/s, drops through a height of 2.10 m, and ends with a speed of 8.2
5 answers
asked by
Carden
383 views
You can get a sunburn on a cloudy day, but you can't get a sunburn even on a sunny day if you are behind glass. why?
1 answer
asked by
Carl
322 views
To reduce the frequency of a particle when it behaves like a wave, we need to ...
-Increase its mass -Reduce its speed -Increase
5 answers
asked by
Kat
433 views
A new computer has a virus and you throw it out the window which is 10m above the ground. If the mass of the computer is 5.7kg,
1 answer
asked by
Brennen
424 views
A wall is made of a substance whose thermal conductivity is .93 J / (m sec Celsius). What is the outside temperature of the wall
1 answer
asked by
Plaster
392 views
Use Bernoulli's equation to determine the velocity with which water will exit from a hole in a uniform cylinder when the
1 answer
asked by
Plaster
391 views
Mercury has a density about 13.6 times that of water. How high could you raise a column of mercury by increasing pressure to 8.2
1 answer
asked by
Plaster
429 views
Explain why the pressure at depth h in a stationary fluid is `rho g h.
1 answer
asked by
Benny
341 views
Assuming that your lungs can function when under a pressure of 11 kPa, what is the deepest you could be under water and still
1 answer
asked by
Noodle
363 views
Well it's an kinematics project and it involves alot of questions. So here goes the problem:
Suppose a football was thrown at an
1 answer
asked by
Vanessa
389 views
What would be some everyday items that would be good insulators to protect three eggs that I have to drop from the top of the
1 answer
asked by
Lynn
331 views
With speed 75m/s and period 5.42ms, calculate the wavelength.
1 answer
asked by
James
311 views
the displacement of an object of 1 kg mass as a function of time t in x-y plane is given by x = 20t + 30t^2 and y = 25 - 40t in
1 answer
asked by
Allomabian
425 views
:o Nevermind. Got it, thanks.
1 answer
asked by
Allomabian
275 views
It is summertime and two boys cannot wait for winter. one boy exerts a 70 N
horizontal force as he pushes his 58 ig friend on a
1 answer
asked by
Wes
471 views
Who were two historical figures (scientists) that contributed to the process of mantle convection and plate movement?
1 answer
asked by
Lori
407 views
You often see birds resting on power lines that carry currents of 50A. the copper wire on which the bird stands has a radius of
1 answer
asked by
lauren
410 views
An 800.0 kg car containing an 80.0 kg crash dummy is moving at 15 m/s. The car is smashed into a concrete walls and stops in
1 answer
asked by
Michelle
409 views
How do you find the phase constant of the oscillation on a graph.
1 answer
asked by
Tyler
293 views
An applied force of 50 N at an angle of 47.5 degrees up of East is applied to a 7.25 kg crate. Find the coefficient of friction
1 answer
asked by
Sarah
322 views
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Anyone care to do....all the problems D:. Yes, I am desperate. (take
1 answer
asked by
Farilla
355 views
A solar cell is designed to have a nonreflective film of a transparent material for a wavelength of 600 nm.
Will the thickness of
1 answer
asked by
Lanise
408 views
3000 Joules of energy in the form of heat are added to a copper block with a mass of 1 kg. What is the blocks temperature
1 answer
asked by
Heidi
400 views
A spaceship approaching a planet at a speed of 0.20c fires a probe toward a planet. Observers on the planet see the probe
1 answer
asked by
Amy
427 views
A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling
1 answer
asked by
Leah
406 views
What is the energy of a hydrogen atom with a 1.70 nm diameter?
1 answer
asked by
MK
410 views
What is the proof for voltage versus length in the equation V=Cx?
1 answer
asked by
Matt
344 views
In using a slide wire potentiometer, show a proof for the equation Vx = Cx where V = the voltage drop, and C = the position
1 answer
asked by
Matt
293 views
What is surface tension and what does tension in surface mean. Definition of tension?
3 answers
asked by
Akashdeep Singh
345 views
Does the law of reflection only apply to mirrors or any object?
1 answer
asked by
Emily
284 views
How do you see your reflection in a plane mirror?
1 answer
asked by
Emily
318 views
A body moves in rectilinear motion along the x-axis with an acceleration of a = 24 - t - 6 t^2 . Starting with an initial
1 answer
asked by
Anthony
423 views
Starting from rest, a ball of mass 4 kg experiences a constant force of 8 N. What is the final kinetic energy (in J) of the ball
1 answer
asked by
Fallon
379 views
Starting from rest, a ball of mass 3 kg experiences a constant force of 21 N for 12 s. What is the final kinetic energy (in J)
3 answers
asked by
Fallon
349 views
When an automobile moves over a wide, closed loop of wire embedded in a road
surface, the magnetic field of the Earth within the
1 answer
asked by
elizabeth
394 views
DO diffuse reflections still follow the law of reflection? (Angle of incidence equals angle of reflection)?
3 answers
asked by
Emily
395 views
What gases are in a fluorescent and incandescent bulb?
3 answers
asked by
Emily
361 views
What is a mirror ( reflective surface and back) made out of?
3 answers
asked by
Emily
381 views
Which is more harmful---smaller wavelength, like gamma ray, or larger wavelength, like radio waves?
3 answers
asked by
Emily
344 views
Hi I really need help with this question... please provide a step by step explanation with the answer because I need to
1 answer
asked by
MB
398 views
An athlete twirls a 1 kg hammer tied to the end of a 1.3 m rope in a horizontal circle the hammer moves at the rate of 1.0
1 answer
asked by
Anna
425 views
What is the frequency shift of a 79 GHz police radar signal when it reflects off a car moving at 110km/h ?
1 answer
asked by
Mike
369 views
(a) calculate the energy in joules put out by a 9.0 V calculator battery that moves 3.0 C of charge through a handheld
1 answer
asked by
Nina
392 views
design an experiment to verify that T is derctly proportional to sqare toot of lenght of the pendulam. (pendulam investigation)
4 answers
asked by
secret
388 views
Two clouds each have a charge of 1*10^7C. If these clouds are 8.2*10^11m apart, what is the magnitude of the electric force
1 answer
asked by
brandon
391 views
An industrial worker accidentally inhaled a radioisotope with an activity of 0.200 kBq. The substance swallowed has a very long
1 answer
asked by
Kirsten
430 views
An industrial worker accidentally inhaled a radioisotope with an activity of 0.200 kBq. The substance swallowed has a very long
1 answer
asked by
Anonymous
421 views
A 1m^3 object is floating in water. A third of the object is submerged. How much does the object weigh?
1 answer
asked by
Ally
397 views
carbon-14 is produced in the atmosphere primarily by what?
1 answer
asked by
john
349 views
Subject: Light and Geometric Optics
Question: Where must a light source be placed in front of a concave mirror for a) light
3 answers
asked by
Emily
500 views
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