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Physics
Physics
College
For number 6 I really can't figure out the answer does anyone know ?
Physics
High School
after rock yy is released from rest several seconds after rock xx is released from rest, what happens to the separation distance s between the rocks as they fall but before they reach the ground, and why? take the positive direction to be downward.
Physics
High School
q6. the disk rolls without sliding on the fixed horizontal surface. at the instant shown, the instantaneous center of zero velocity for rod ab would be in which region?
Physics
High School
A 2uF capacitor, in series with a 2kohm resistance is joined to 100Vd. C supply. Calculate: i. The current flowing and ii. The energy stored in the capacitor at the end of 4 seconds from the start.
Physics
High School
A student is constructing a stream table to investigate how erosion by a meandering stream is affected by the slope of the land. The student uses the equipment shown.What should the student vary for the different trials of the experiment?ResponsesA The number of blocks stacked beneath the tray The number of blocks stacked beneath the trayB The sediment size of sand used in the stream table The sediment size of sand used in the stream tableC The volume of water that enters the stream table and collects in the bucket The volume of water that enters the stream table and collects in the bucketD The size of the hole in the bottom of the container of water
Physics
High School
after an intense earthquake, the earth "rings" with a period of 54 minutes. what is the frequency (in hz) of this oscillation? Express your answer in hertz.
Physics
High School
a rifle is shot in a valley formed between two parallel mountains. the echo from one mountain is heard after 2.00 s and from the other mountain 2.00 s later. what is the width of the wvlley?
Physics
High School
a cliff diver pushes off horizontally from a cliff and lands in the ocean 2.00 s later. how fast was he going when he entered the water?
Physics
High School
a wheel of radius 15 cm has sa rotational inertia of 2.3 kg m^2. the wheel is spinning at a rate of 6.5 revolutions per second. a frictional force is applied tangentially to the wheel to bring it to a stop. the work done by the torque to stop the wheel is most nearly:
Physics
High School
What happens to the rate of heat conduction is the distance between two materials increases?
Physics
High School
Suppose a small car and a large truck run out of gas at the same location. Which vehicle will bemore difficult to push to the gas station? Explain your response in terms of Newton's second law.
Physics
College
When the hydrogen in a star's core is used up, what occurs?A. The core collapses causing a huge explosion called a supernova.B. The nitrogen core collapses and the outer layer expands into a red giant.C. The helium core collapses and the outer layer expands into a red giant.D. The outer layer drifts away leaving a hot dense white dwarf core.
Physics
High School
What benefits have you enjoyed personally from using the power of hydraulics and pneumatics?
Physics
High School
what are some of the observational capabilities of the juno spacecraft as identified in the article?
Physics
High School
if interstellar dust makes an rr lyrae variable star look 5 magnitudes fainter than the star should, by how much will you over- or underestimate its distance?
Physics
High School
what is the minimum number of rays needed to locate its image point? explain. match the words in the left column to the appropriate blanks in the sentences on the right.
Physics
High School
If someone ran 100 meters in 20 seconds, then ran another 100 meters in 25seconds, what would the runners average speed be over the whole 200 meters? pls help!!!
Physics
High School
dust-ignitionproof equipment must be designed and built in a manner that excludes dusts and prevents arcs, sparks, or heat that may be generated inside of the enclosure from causing ignition of ? of a specified dust on or in the vicinity of the enclosure.
Physics
High School
if the distance between the thermopile sensor and the source is doubled and all other parameters remain the same, by what percentage will the thermopile reading increase or decrease?
Physics
College
how long does it take for light to travel 2.5m in water?
Physics
High School
question 4 a photon with a longer wavelength is more energetic than a photon with a short wavelength. travels slower than a photon with a short wavelength. is more blue than a photon with a short wavelength. has a lower frequency than a photon with a short wavelength.
Physics
High School
a student with a mass of 55 kg rides a bicycle with a mass of 11 kg. a net force of 125 n to the east accelerates the bicycle and student during a time interval of 3.0 s. what is the final velocity of the bicycle and student? assume the student and bicycle are initially at rest.
Physics
College
Download the attached Word Document and follow the instructions to complete the lab. Please be sure to to answer all questions.Copy and paste your answer in the box below or attach a Word Document (.doc or .docx) or PDF (.pdf).
Physics
High School
the speedometer of my car reads v = 45 m/s. is this group of answer choices instantaneous speed? average speed?
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