I) Do you believe that all the observers of the Earth see the same stars that you have observed from your location? Explain. II) Do you believe that all observers on Earth can recognize the same trajectories of the stars that you observe from your location? Explain.

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Q: at makes electricity dangerous. The high current or the high voltage explain

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Q: Let r(t) = (3t, 4 cos t, 4 sin t). Compute the curvature K(t), the unit normal N(t), and the tangent...

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Q: Consider a capacitor made of two parallel plates with an area of 0.16 square meters separated by 0.5...

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Q: (II) A uniform circular plate of radius 2R has a circular hole of radius R cut out of Hed it. The ce...

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Q: What must L be to build the capacitor?

A: The value of L of the capacitor is 0.0475 meter.

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A: In longitudinal wave particles of the medium oscillate left to right  and transfer one's energy to a...

Q: A 100 kg mass is lifted 1.8 m. What is the potential energy of the mass (in J)?

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Q: A runner hopes to complete the 10,000 m run in less than 30 min. After running for constant speed at...

A: Constant speed(u) of runner is given by:- u=10,000-110027u=329.63 m/minu=5.5m/sec

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Q: A negative charge enters a uniform magnetic field as shown. What is the direction of the magnetic fo...

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Q: •38 In Fig. 25-29, a potential difference V = 100 V is applied across a capacitor arrangement with c...

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Q: A car's bumper is designed to withstand a 6.84-km/h (1.9-m/s) collision with an immovable object wit...

A: Initial speed of the car, u = 1.9 msweight of the car, m = 950 kgdistance travel before coming to re...

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Q: is the current involved when a truck battery sets in motion 720 C of charge in 4.00 seconds while

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Q: satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution e...

A: Given  R1 = r  T1 = 36.6 h  R2 = 4 r  T2 = ? 

Q: Dimensional Analysis and Unit Conversion According to the label on a bottle of salad dressing, the v...

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Q: a. 30 psig to kPa absolute O 308.111 O 380.111 O 239.123

A: a) To convert 30 psig to kPa absolute   

Q: If a body is projected vertically upwards from the ground, graph will be as shown aboue The maximum ...

A: Take, g=10 m/s2   From graph, it can be inferred that body will reach its max. height in time(t)=4 s...

Q: Use the capacitances given below to find the equivalent capacitance. C = 180.µF, C2 = 140.uF, C3 160...

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Q: (e) In situation (3), give the direction of a by naming either a quadrant or a direction along an ax...

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Q: A ball of mass 100 g, projected at an angle of 25° from the ground with an initial velocity of 12 m/...

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Q: April works at the grocery store. She needs to move a heavy crate of bananas ( m = 80 kg) to the pro...

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Q: A roof tile falls from rest from the top of a building. A man inside the building notices that it ta...

A:  Time taken to pass the window  =0.2s  Height of window =1.8m We have to find How far above the top ...

Q: 57. If the speed of a car is doubled, its kinetic energy is (1) halved (2) doubled (3) quartered (4)...

A: Post the remaining questions so that question can be answered.

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Q: The swept area of wind turbines is increased by a factor 4, by doubling the blade length. Prove the ...

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A: Anti-reflective coating is a surface treatment that removes reflections from the surface of lenses, ...

Q: d. 376.54 inches Hg to kPa absolute if the atmospheric pressure is 740mm Hg 1373.82 1376.49 O 406.46

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Q: a. a) both scalar product and vector product obey the commutative property of multiplication b. b) b...

A: Since,  For scalar product:- a⇀.b⇀=b⇀.a⇀ Hence, scalar product is commutative.   For vector product:...

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Q: A jet fighter pilot wishes to accelerate from rest at a constant acceleration of 5g to reach Mach 3 ...

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Q: Two sailors are at the tops of their ships' masts in the open ocean.The mast of ship A is twice as h...

A: Since, d=3.855h where, d=distance in kilometres(km). h=height of mast in metres(m).   Hence, d=kh   ...

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Q: 14. The human body can survive an acceleration trauma incident (sudden stop) if the magnitude of the...

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A: The direction of the magnetic force can be find using the right hand thumb rule. Where the thumb ind...

Q: A 25 kg box is on a 35° frictionless hill. Determine its acceleration.

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Q: A bullet is fired straight up in the air at an initial speed of 245 m/s. After how much time is the ...

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Q: Consider the sealed containers (same fluid and on the same ground level) below with heights given in...

A: Pressure=hρg

Q: A stone accidentally falls from rest from the edge of a 35-m-high building. When the stone is 14m ab...

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Q: Refer to the cantilever framework shown in the figure and find the shortest distance from point B to...

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Q: A 240-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then desc...

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Q: What is the electric flux for the following set of variables? E = 9.5 x 1013 N/C A = 1.6 x 10-5 m2 Θ...

A: Given, a)E = 9.5 x 1013 N/C A = 1.6 x 10-5 m2 θ = 75°b)E = 2.9 x 1019 N/CA = 2.5 x 10-2 m2 θ = 90° c...

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Q: Wellington Wildcat is rushing to get to a parade in time to be the grand marshal. He’s standing in t...

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Q: A 0.50-mm-wide slit is illuminated by light of wavelength 500 nm. What is the width of the central m...

A: Given: The width of the slit is 0.5 mm. The wavelength of the light is 500 nm. The distance of the s...