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Physics
Physics
High School
a baseball player of mass of 84.0 kg running at 6.70 m/s slides into home plate. if the slide lasts for 0.750 seconds, what average friction force is exerted on the player
Physics
High School
at what frequency would the reactance of a 14 mu or micro ff capacitor equal that of a 1.6 mh inductor?
Physics
High School
which is the correct order for the first six planets in our solar system starting from the sun?
Physics
High School
which are the main components of the milky way? group of answer choices disk, halo and bulge black hole, disk and globular clusters stars, gas and dust spiral arms, gas and dust
Physics
High School
what are the smallest and largest wavelengths of visible light that will also produce interference minima at this location
Physics
High School
a 43 g particle is moving to the left at 29 m/s . how much net work must be done on the particle to cause it to move to the right at 33 m/s ?
Physics
College
How is the Milky Way changing?A. Large numbers of stars are undergoing blue-shift.B. Large numbers of stars are dying inside nebulas.C. Large numbers of stars are being born inside nebulas.D. The Milky Way does not change.
Physics
High School
a block has the form of a cube, with edge length 60 cm. it is suspended from a spring. when the block is in water, the spring balance reads 80 % of the reading when the block is in air. what is the density (in kg/m3 ) of the block?
Physics
High School
is there an attractive magnetic force that tends to pull the loop in, like a magnet pulls on a paper clip? or do you need to push the loop in against a repulsive force? explain.
Physics
High School
at the orbit of venus (67 million km from the sun), the apparent brightness (in units of watts/m2) is:
Physics
High School
in what wavelength range was interferometry first routinely used? in what wavelength range was interferometry first routinely used? ultraviolet radio optical infrared x-ray
Physics
High School
________ is another name commonly used by scientists to denote seismic sea waves induced by earthquakes.
Physics
High School
jason throws a basketball straight downward, letting it bounce once before catching it. we can ignore air resistance.what is true about the acceleration and velocity of the ball on its way up?assume that upward is the positive direction.
Physics
High School
Please help ASAP How much energy is required to change a 35 g ice cube from ice at 12C to steam at 118C? The specific heat of ice is 2090 J/kg C, the specific heat of water is 4186 J/kg C, the specific heat of stream is 2010 J/kg C, the heat of fusion is 3.33 105 J/kg, and the heat of vaporization is 2.26 106 J/kg.Answer in units of J.
Physics
High School
a parallel plate capacitor is charged to a maximum value of q and disconnected from the battery. the voltage between the plates is v, and the energy stored in the capacitor is u. if charge is halved and the capacitance is not changed, how are electric potential and potential energy affected?
Physics
High School
how much potential energy would a 15 kg apple have if it is at the top of a tree that is 1 meters high? (round your answer to the nearest whole number, no decimal places).
Physics
High School
current-carrying wires produce which kind of fields? a frictional b magnetic c chemical d gravitational
Physics
High School
what we often call a centripetal force is simply whichever force or combination of forces that give an object a centripetal.
Physics
High School
what is the general relationship between wavelength and wave base? group of answer choices wave base lies at a depth equal to four wavelengths. wave base lies at a depth equal to three wavelengths. wave base lies at a depth equal to two wavelengths. wave base lies at a depth equal to half the wavelength. wave base lies at a depth equal to one wavelength.
Physics
High School
what unit of temperature is used in gas law calculations? what unit of temperature is used in gas law calculations? either degrees celsius or kelvin degrees celsius kelvin either degrees celsius or degrees fahrenheit degrees fahrenheit
Physics
High School
which argument does this evidence best support? a larger magnets can attract more objects. b a magnet can attract magnetic objects through various materials. c magnetic fields exist between objects that are not in contact with each other. d only objects that are made of metal have a magnetic field.
Physics
High School
A) A block of Styrofoam floats on water while a same size block of lead lies submerged in the water. The buoyant force is greatest on thea. Styrofoam.b. Lead.c. Is the same for both.d. None of the above.
Physics
College
I really need help with this please
Physics
High School
during this low pressure phase, the semilunar valves close to prevent the backflow of blood into the ventricles from the great vessels. the second heart sound is heard.
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