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Physics
Page 93
Questions (146,283)
A car is driven 135 km west and then 40 km southwest. What is the displacement of the car from the point of origin (magnitude
1 answer
asked by
Aastha
406 views
Under what conditions will a 0.0300 kg marble and a 3.00 kg rock have the same gravitational potential energy other than zero
1 answer
asked by
Shelby
391 views
Why is sin theta used in the torque formula while the work formula uses cosine theta?
1 answer
asked by
Morgan
339 views
An ideal gas is squeezed slowly from state A (pressure-600 kPa, volume- 1 L) to B ( pressure-400kPa, volume- 0.5 L).
What is the
1 answer
asked by
Chris
383 views
Mercury vapour is used in as the dominant species which is excited in a traditional fluorescent light. The first and second
1 answer
asked by
Max89
348 views
In which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In
4 answers
asked by
Edward
1,769 views
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
432 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
391 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
273 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
469 views
Who were two historical figures (scientists) that contributed to the process of mantle convection and plate movement?
1 answer
asked by
Lori
405 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
408 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
354 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
399 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
341 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
422 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
360 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
396 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
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