25. Two objects of unequal mass are dropped from the same height near the surface of the earth. Which of the following is the same for both objects just before they hit the surface? (Ignore friction.) A. velocity B. net force C. momentum D. kinetic energy

Q: The total electric flux through a closed surface in the shape of a cylinder is 8.60 x 104 N-m²/C.…

A: Given:-  The total electric flux through a closed surface is ϕ = 8.60 x 104 Nm2C Find:-  a) What is…

Q: Q1) Three containers of different shapes, as shown in the figure Each container filled with water to…

A: depth of water is = 5cm in all three containors

Q: 60° 25° 3. In the above diagram, the left cable is strong, but the right cable can only handle a…

A: Given  In the above diagram, the left cable is strong, but the right cable can only handle a maximum…

Q: A projectile is fired at an upward angle of 45.6° from the top of a 342m cliff with a speed of…

A:

Q: In the figure, a crate of mass m = 108 kg is pushed at a constant speed up a frictionless ramp (0 =…

A: In the given question,  Mass of the crate (m)= 108kg The horizontal force applied on the crate = F…

Q: A spaceship whose rest length is 490 m has a speed of 0.88c with respect to a certain reference…

A:

Q: 4. A plane travels on a bearing of 15° at an air speed of 655 km/h. It encounters a wind blowing at…

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Q: Illustrate how can magnet be demagnetized ?

A: Magnet can be demagnetized in following ways. a) It can be demagnetized by heating past the Curie…

Q: se both ray diagramming and mirror equation. Use ruler for ray diagram A concave spherical mirror…

A: Ray diagram:

Q: A block of mass m₁ = 3.56 kg on a frictionless plane inclined at angle 8 = 34.9° is connected by a…

A:

Q: Q/ If F1 = 250 N and F2 = 375 N are two forces, the angle between F1 and the positive y-axis is…

A: given F1 =250 N 300 from positive y axis  hence vector form of F1 is  F1 →=250sin30 i +250cos 30…

Q: he speed of ultrasound in human body is 1540 m/s. A procedure is performed with a frequenc f 2 MHz…

A: Given:v=1540 m/sf=2 MHzvh=8 cm/s or 0.08 m/s

Q: Q9) In the compound microscope, the intermediate image formed by the object is O Virtual, moderate…

A: Intermediate image Sequence of lenses arrangement in the optical system images established earlier…

Q: (a) A spaceship is projected vertically upward from the Earth's surface with an initial speed of…

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Q: The diagram below shows four charges at the corners of a square of sides d = 2.00 m. Here, q₂ =q₂ =…

A:

Q: #11 Electron Volt Measure In #10, recalling that the proton mass is 1.67 × 10-27 kg, what is the…

A:

Q: The figure shows a container of mass m₁ = 4.5 kg connected to a block of mass m₂ by a cord looped…

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Q: Lwiw m X = Xmax x=0 A 3.6 kg block sliding on a rough horizontal surface is attached to one end of a…

A: Write the expression for the initial energy. Write the expression for the final energy. Write the…

Q: 1. Tom, the cat, is chasing Jerry, the mouse. Jerry runs past Tom at 10.00 m/s. At the same time…

A: Data We have velocity of jerry ,v=10m/s acceleration of tom ,a=3.00m/s2

Q: A 10,000 kg airplane must reach a velocity of 60 m/s to take off. If the he rizontal force exerted…

A: given:v=60 m/sF=60 kNm=10000 kg

Q: One side of the roof of a house slopes up at 37 deg. A roofer kicks a round, flat rock that has been…

A:

Q: If a truck travels at a speed of 100 km/h for 5 h, how far does it travel?

A:

Q: 20. The density of liquid mercury at 273 K is 13.6 g cm³ and the surface tension is 0.47 N m. If the…

A:

Q: 4. A plane travels on a bearing of 15° at an air speed of 655 km/h. It encounters a wind blowing at…

A:

Q: In the figure , the center of gravity (CG) of the pole held by the pole vaulter is 1.85 m from left…

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Q: The potential in a region between x = 0 and x = 6.00 m is V = a + bx, where a = 11.2 V and b = -6.10…

A: In the given question, Potential between x - 0 and x  = 6m is given by…

Q: 1) The value normally stated when referring to alternating currents and voltages is the: d) peak…

A: As per guidelines we are suppose to answer one question from multiple questions and three subpart…

Q: An aeroplane leaves Bengaluru at 23:50 hours and reaches Chennal at 00.40 hours. Rewrite the…

A: There are two primary methods of showing the time, one is the 12-hour clock and the other is the…

Q: A pulse radar is used to detect a target with an area of 10 m2 located at a distance of 120 km. If…

A: A pulse radar tells us about the distance to the target by calculating pulses timing and using…

Q: two friend 50m apart are walking towards each other in a straight road. Man A is walking at a speed…

A:

Q: A violin string of ?=31.8 cm in length and ?=0.64gm⁄ linear mass density is tuned to play an A4 note…

A:

Q: A radar wave reaches the target at a time of 2 x 104 sec, the corresponding radar range is

A:

Q: Radio station operating at kHz Equivalent to a dipole of half- wavelength is

A: Expression of wavelength: λ=cf Substitute the values. λ=300000000900×1000=333.33 m

Q: Find the value of force applied if work done is 215 J and displacement is 8 m.

A: Introduction :  In this question we are provided with value of displacement and work done . with…

Q: A radar wave reaches the target at a time of 2 x 10-4 sec. The corresponding radar range is

A: Given Information The target time taken by the wave is given as t = 2 x 10-4 s.   Known…

Q: One of the radioactive nuclides formed in nuclear power plants is hydrogen-3, called tritium, which…

A: According to theroy of Radioactivitythe decay rate of a nuclei which has initially N0 nuclei  at any…

Q: Find the momentum of a body having mass 0.043 kg moving with a velocity 0.033 m/s.

A: Given Mass(m)=0.043 kg Velocity (v)=0.033 ms-1 Required momentum(p)=?

Q: Q/ If F1 = 250 N and F2 = 375 N are two forces, the angle between F1 and the positive y-axis is…

A:

Q: Q 17) The point near a person suffering from farsightedness is located at a distance of (75 cm) from…

A:

Q: Q18) A sample of bone tissue with a density of (1.8 g/cm3). Calculate the speed of ultrasound that…

A: Given : Density = 1.8 g/cm3 =1.8×10-310-2×3= 1800 kg/m3 Acoustic Impedance = 7.38*106 kg.m-2s-1

Q: The following forces act concurrently on a body: A = 80 lb, directed 30° N of E; B = 50 lb, directed…

A: Given that:A=80 lb,  30°N of EB=50 lb, directed NWC=100 lb, directed East

Q: F. (N) 6 4 0 N B 5 D Ex (m) H.

A:

Q: 2. A wooden block attached to a glider has a combined mass of 0.200 kg. Both the block and glider…

A: Given Data, Mass of the wooden block and glider (m1)=0.200 kg Mass of the dart(m2)=0.012 kg Velocity…

Q: Zach, whose mass is 70 kg, is in an elevator going up at a constant speed of 2.0 m/s. Match the…

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Q: Which of the following are waves that can travel without a medium? Select all that apply. visible…

A: Introduction: Electromagnetic waves are waves that are created as a result of vibrations between an…

Q: does a sphere have a radius

A: Yes, a sphere always have a radius.  As we draw a straight line from center of the sphere to the…

Q: Find the pressure Force=33 N Area=2.5 m2

A:

Q: Using ray diagram, draw the image formation by a CONVEX LENS when the object is found: 1. Beyond 2F'…

A: Rules for image formation: 1. A ray parallel to the principal axis after reflection from the lens…

Q: A sphere of mass 1.3 × 104 kg is suspended from a cord. A steady horizontal breeze pushes the sphere…

A:

Q: Given two particles with Q = 2.40-μC charges as shown in the figure below and a particle with charge…

A: a) Draw the free-body diagram of the system.