Physics question and answers for October 01, 2023
- Q consider a device to register osmotic pressure, inwhich it is placed a solution containing 20 grams of hemoglobin ina liter of solution in the right compartment and pure water in...
- Q -Do electric fields extend through the interior of an insulatorin static equilibrium?-Do electric fields extend through the interior of an conductorin static equilibrium?-What is the relationship between electric field lines...
- Q 6. [2pt]In the lab Springs, a student sits on a bosun's chairsuspended by a spring. If the springhas a spring constant, k = 1020 N/m, and is stretched by 0.5...
- Q A long horizontal wire carries 26.0 A of current due north. TheEarth's field 21.0 cm due west of the wire points north butdownward, 44 ∘ below the horizontal, and has...
- Q 8. Does the period of a simple pendulum depend on the amplitudeof its motion? Explain.
- Q a) A charge of 1C is affixed to the x axis at 20cm and a chargeof 4C is affixed at -10cm, where must a charge of -10C be placed inorder...
- Q A sprinter accelerates at 3.08 m/s2 for a certainnumber of seconds during a 100.0 meter race. She runs the rest ofthe race at top speed and finishes the race in...
- Q A 890 g wooden block is initially at rest on a rough horizontalsurface when a 15.8 g bullet is fired horizontally into (but doesnot go through) it. After the impact,...
- Q For college physics. Please write in paragraph form, typed.Thanks!Respond to the following:In your own words, explain potential energy, kinetic energy,conservation of energy and examples in daily life.In your own words,...
- Q A rocket is launched at an angle of 53.0° above the horizontalwith an initial speed of 98 m/s. The rocket moves for 3.00 s alongits initial line of motion with...
- Q Ball 1, with a mass of 140 g and traveling at 13 m/s , collideshead on with ball 2, which has a mass of 320 g and is initially atrest.What...
- Q A football is kicked straight up into the air; it hits theground 3.6 s later.Part AWhat was the greatest height reached by the ball? Assume it iskicked from ground level.Express...
- Q a) Explain and give a numerical example of time dilation.b) Explain and give a numerical example of lengthcontraction.
- Q A 2.9 kg block with a speed of 3.6 m/s collides with a 5.8 kgblock that has a speed of 2.4 m/s in the same direction. After thecollision, the 5.8...
- Q Describe in detail two modern applications of electromagnets.Do these electromagnets draw a large amount of current or a little?How do you know? What supplies that current?Why do you think electromagnets...
- Q A ball thrown straight up into the air is found to be moving at7.24 m/s after falling 2.27 m below its release point. Find theball's initial speed. Thank you.
- Q Determine the order in which the following objects released fromthe same height, initially at rest and rolling down an inclinewithout slipping, will reach the bottom: A hollow sphere, a solidsphere,...
- Q A diver springs upward from a board that is 3.09 meters abovethe water. At the instant she contacts the water her speed is 8.52m/s and her body makes an angle...
- Q Magnetic field in a solenoid iswhat
- Q What are some spacecraft that aim to study how our Solar Systemwas formed? What studies did each spacecraft conduct?
- Q A 16 g ball is fired horizontally with speed v0 toward a 111 gball hanging motionless from a 0.9-m-long string. The balls undergoa head-on, perfectly elastic collision, after which the...
- Q a2m string clamped at both ends with a mass of 87 kg has an appliedtension of 120n while it is plucked. what is the frequency of thewave if it produces...
- Q Two point charges, -62.5 microcoulombs (placed on the left sideof the positive charge) and +12.5 microcoulombs, fixed on thex-axis, are seperated by a distance of 25.0 cm from each other....
- Q Two parallel electrical conducturs each leads a current of thesame size. The distance between the center of the conductors can bevaried from 100 mm to 1000 mm. The currents are...
- Q Which of the following statements are true about relativisticmass, momentum and energy?T or F? according to Einstein, a particle atrest has no energy at allT or F? if a particle...
- Q A certain ultrasound device can measure a fetal heart rate aslow as 50 beats per minute. This corresponds to the surface of theheart moving at about 4.0 x 10-4 m/s....
- Q On Myth Busters it was determined that a penny dropped from thetop of the Empire State Building would reach a terminal velocity of64.4 miles per hour before hitting the ground....
- Q In procedure 2: suppose red light passes through a double slitand falls on a screen. In the diffraction pattern, the distancefrom the central maximum to the first maximum is 5...
- Q According to Newton’s law of cooling, the temperature of abody changes at a rate pro-portional to the difference between its temperature and thatof the surrounding medium (the ambienttemperature),dTdt = −k(T...
- Q Imagine you and your friends are running in the neighborhoodlike electrons flowing through a circuit. Makeup stories that wouldserve as analogies for a parallel versus series circuits. Summarizethe similarities and...
- Q Wile standing at the edge of the roof of a building, you throw astone upward with an initial speed of 6.79m/s. the stone issubsequently falls to the ground, which is...
- Q A small metal sphere, A, carrying a charge of +15.0 µC is at theorigin. An identical sphere, B, carrying a charge of -18.0 µC is at~xB = 4.0ˆi cm and...
- Q All eyeglass lenses have chromatic aberration. This is usuallyexpressed as dioptric spread. For a typical +6.0 D lens,the focusing power for red light is +5.90 D,the power for greenlight is...
- Q A car travels along a straight east-west road. A coordinatesystem is established on the road, with x increasing to the east.The car ends up 19 mi west of the intersection...
- Q A 10 kg block is placed on an inclined plane that is at an angleof 30 degrees with respect to the horizontal. THe coefficient ofkinetic friction between the block and...
- Q For College Physics. Please explain in paragraph form.Respond to the following:In your own words, explain vector, scalar, speed, velocity, andlinear acceleration. Also give examples.
- Q a.) Two identical particles of charge 3 μμC and mass 6 μμg areinitially at rest and held 3 cm apart. How fast will the particlesmove when they are allowed to...
- Q A car is to be hoisted by elevator to the fourth floor of aparking garage, which is 48 ft above the ground. Part A If theelevator can accelerate at 0.8...
- Q Indicate which statements are true or falseOnly very small objects have an associated wave function.Electrons show interference effects like waves.The quantization of frequencies is specific to quantumphysics.Light can display particle...
- Q In nature, is mechanical energy always conserved (yes or no)why?
- Q When the potential difference between the plates of a capacitoris halved, the magnitude of the electric energy stored in thecapacitor U:a. is 2U b. is U/2c. remains the same d....
- Q A charge 4.98 nC is placed at the origin of an xy-coordinatesystem, and a charge -1.99 nC is placed on the positive x-axis at x= 4.01 cm . A third...
- Q A cylindrical aluminum pipe of length 1.42 m has an inner radiusof 1.60 ×10-3 m and an outer radius of 3.39×10-3 m. The interior of the pipe is completely filledwith...
- Q A batted baseball is hit with a velocity of 44 m/s, startingfrom an initial height of 4 m. Find how high the ball travels intwo cases:(a) a ball hit directly...
- Q 4.2.2 What is an RC Circuit?Recall that the capacitance is defined as the proportionalityconstant between the total charge accumulated by a capacitor andthe voltage difference across the circuitQ = Câ–³V...
- Q A rocket takes off vertically from the launchpad with no initialvelocity but a constant upward acceleration of 2.25 m/s2 . At 15.4safter blastoff, the engines fail completely so the only...
- Q   A boy pushes a load of 1260 N at a constant speedup a 25° inclined plane onto a platform 1.0 m high. If the boy’smaximum force is 300 N parallel...
- Q 1. Boltzmann statistics are used to find the distribution ordistribution of the velocity of Inert gas at any temperature. If D(v) is the velocity distribution of inert gas at T,...
- Q Two wires separated by 2 meters are carrying current in the samedirection. One carries a current of 2 amps and the other carries acurrent of 3 amps. For the following,...
- Q A charge q1 of +3.0 x10^-6C is held at (-12, 0) (cm) . Anothercharge q2 of the same magnitude is held at (12,0). The third chargeq3 is held at (0,8)...
- Q 6.) A 'Newton's Cradle' consists of 7 identical metal ballswhich are free to swing back and forth. When two are pulled backand then released, they stop after colliding elastically with...
- Q Could you create me a secant code in Matlab program? That's I cankeep it and use it for any time?
- Q A large cyclotron directs a beam of He++ nuclei onto a targetwith a beam current of 0.245 mA.(a) How many He++ nuclei per second is this? He++ nuclei/s(b) How long...
- Q Does the gravitational force of a satellite changes depending onthe orbit it follows
- Q The diffusion coefficient of a large protein molecule is foundto be 2.2×10-13 m2/s in the water at 20∘C.Assuming it is spherical with a density of 1.3×103kg/m3, compute its molar mass.
- Q A tennis ball is lobbed (from very close to the ground) at aspeed of 11.5 m/s and an angle of 47.9 degrees to the horizontal.(a) Find the horizontal distance traveled...
- Q n object with mass 100 kg moved in outer space. When it was atlocation <6, -26, -7> its speed was 6.0 m/s. A singleconstant force <230, 310, -120> N acted...
- Q A small metal sphere, A, carrying a charge of +15.0μC is at theorigin. An identical sphere, B, carrying a charge of -18.0μC is at~xB= 4.0ˆi cm and a third sphere,...
- Q Hello, I have three questions.1. What happens to the amount of air resistance on your car asyou drive faster?2. When will an object falling through air reach terminalvelocity?3. What is...
- Q Two carts sit on a horizontal, frictionless track; the springbetween them is compressed. The small cart has mass m, and the massof the larger cart is M = 5.29m. NOTE:...
- Q How much of a gravitational redshift should you expect for aspectral line of the Sun observed in deep space if it has a restwavelength of 121.6nm?
- Q The potential in a region between x = 0 and x= 6.00 m is V = a + bx, where a= 12.6 V and b = -7.90 V/m.(a) Determine the...
- Q A square insulating sheet 70.0 cm on a side is heldhorizontally. The sheet has 3.50 nC of charge spread uniformly overits area. Part A Calculate the magnitude of the electric...
- Q Which of the following statements are true for the photoelectriceffect? Give all the correct answers, e.g., enter ABC.The maximum kinetic energy of the ejected electrons isproportional to the velocity of...
- Q What does \"Electric potential is the negative line integral ofelectric field\" mean?
- Q light passes through a single slit of width 8.77 x 10^-6 m. Thesecond (m = 2) light diffraction minimum occurs at an angle of5.62°. What is the wavelength of the...
- Q American football uses a field that is 100.0 yd long, whereas asoccer field is 100.0 m long. Which field is longer, and by howmuch (give yards, meters, and percent)?
- Q Vector A has a magnitude of 4 m/s and it is on the positive xaxis .Vector B has a magnitude of 6 m/s and forms a 30 degrees anglewith the...
- Q A potential difference of 3.60 V will be applied to a33.00 m length of 18-gauge platinum wire (diameter =0.0400inches). Calculate the current.Tries 0/20Calculate the current density.Tries 0/20Calculate the electric field.Tries...
- Q If 250 g of water is heated by 6 K during the experiment and thewater-mass equivalent of the coil is 2.5 g, how many calories ofenergy has the water (and...
- Q a box of mass m = 66.0 kg (initially at rest) is pushed adistance d = 54.0 m across a rough warehouse floor by an appliedforce of FA = 218...
- Q A ring of charge with radius 1.5 cm and a charge of100nC has the electric field along the primary axis of the ring asE=kQx/(R^2+x^2)^3/21. find electric field 2.25 cm from...
- Q A car is parked on a cliff overlooking the ocean on an inclinethat makes an angle of 21.0° below the horizontal. The negligentdriver leaves the car in neutral, and the...
- Q A spherical conductor carries a charge −30 μC and has a radiusof 20 cm.a) Determine the electric field and potential at all points inspace.b) Calculate the values of the field...
- Q The drawing shows an exaggerated view of a rifle that has been‘sighted in' for a 91.4-meter target. If the muzzle speed of thebullet is v0 = 475 m/s, there are...
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