What is the weight of 300g block on the surface of moon?

Q: 4. What happens to the force between two charged metal spheres in a vacuum if the charge on each is ...

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Q: A shell is fired from a fixed artillery gun with an initial speed u such that it hits the target on ...

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Q: The capacitor in the circuit shown is initially uncharged and the switch is closed at t=0. 1. What i...

A: Given:  

Q: 30 SITUATION 5 ロ 00

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Q: If an car went from a red light to a green light so basically he stoped at the red light then go at ...

A:   If an car went from a red light to a green light so basically he stopped at the red light then go ...

Q: Light reflected from the front surface of a dense flint windowpane (n = 1.655) has an intensity I1. ...

A: Given data as per question n = 1.655

Q: An automobile starts from rest and reaches a speed of 42 m/s in 15 seconds. The acceleration increas...

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Q: 2. Find the angle between the position vectors (from the origin) to the points (3, -4, 0) and (-2, 1...

A: Let,A=(3,-4,0) B=(-2,1,0) We have to find the angle between these two vector

Q: An electron traveling horizontally to the right enters a region where a uniform magnetic field is di...

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Q: A (3.70x10^3)-line/cm grating produces a third-order fringe at a (2.942x10^1)° angle. What wavelengt...

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Q: 2. A convex mirror in a store has a focal length of 1.5 m. a. Caculate the image location and the si...

A: 2)focal length of convex mirror (f) = - 1.5 m height of boy (h) = 1 m distance of boy from mirror (d...

Q: In a football match, a player kicked 400 grams of football with a speed of 70 miles per hour at an a...

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Q: Two capacitors, 4.7 microF and 5.6 microF, are conneted in parallel. If a 9 volt battery is to be pl...

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Q: The value of numerical aperture of the objective lens of a microscope is 1.25. If light of wavelengt...

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Q: 1. Find the electrostatic force between charges of +2.0 C and +5.0 C separated by a distance of 75 m...

A: Given: Charge one, q1=2.0 C Charge two, q2=5.0 C Distance between them, r=75 m Required: Electros...

Q: Suppose there are 10 distinguishable particles in a box divided into two equal compartments, A and B...

A: The total number of distinguishable particle is N=10 The initial particles in the compartment A and ...

Q: Ball A whose mass is 15.8 g moves at 3.6 m/s. How fast must a 9.9-g ball B move so that the two ball...

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Q: τ=rFsinθ Is the version of torque we should now be using A ladder with a length of 2m and a mass of...

A: Given data- Length of ladder L=2 m Mass of ladder m=5 kg Angle with floor =60 degree

Q: Two skaters - a small girl and a large boy - are initially standing face-to-face but then push off e...

A: I agree with Borris contention. The contention of Borris is correct and is well explained according ...

Q: A system of very long conductors (Total length I) consists of an inner cylinder of radius a and a th...

A: Consider the gaussian surface of the differential element of radius r (a < r < b), width dr, a...

Q: A parallel plate capacitor is connected to an ideal battery with voltage V. While the battery is sti...

A: GivenA parallel plate capacitor is connected to an ideal battery with voltage V.

Q: Consider the circuit shown. Let ɛ = 16.0 V and let %3D R1 = R2 = R3 = R4 = 6.002. What is the voltag...

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Q: In a football match, a player kicked 400 grams of football with a speed of 70 miles per hour at an a...

A: impulse is  rate of change in momentum. It is given by  F =m∆V∆tF∆t =m∆V

Q: An object 7 m in front of glass lens appears as a real image 2 m behind the lens what is the lens fo...

A: Given data :                        Distance of the image    =   v                        Distance o...

Q: Consider the circuit shown. Let ε=16.0 and let R1=R2=R3=R4=6.00Ω. What is the voltage across R3? A....

A: The resistance of the resistor R1=R2=R3=R4=6.00 Ω The value of ε=16.0 V

Q: A punter kicks a football at an angle of 30 degrees with the horizontal at an initial speed of 15 m/...

A: Determine the horizontal and vertical velocities.

Q: 15. What is the length of a simple pendulum if it oscillates with a period of 2 s? A) 2.0 m B) 1.0 m...

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Q: 3. A rubber band has a "spring constant" of 45 N/m. When the rubber band is pulled by a force of 9.8...

A: (3) Given data: The spring constant, k=45 N/m. The force applied to the rubber band, F=9.8 N.    

Q: Light is incident normally on a completely absorbing surface with an energy flux of 25 Wcm2. If the ...

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Q: Three capacitors are connected in parallel. C1 = 3.3 microF C2 = 6.8 microF C3 = 4.7 microF Solv...

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Q: The elastic limit of brass is 379 MPa. What should be the minimum diameter of a brass rod if it is t...

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Q: 1. A piece of plastic has a net charge of +2.0 nC. How many more protons do this piece of plastic ha...

A: The net charge on the piece of plastic is q=+2.0 nC  

Q: 1) A thin film of water (n 1.33)floats on the surface of an oil with refractive index 1.65. White li...

A: Givenn=1.33n'=1.65Angle of reflection,θ=48°λ=610 nm=610×10-9 m

Q: 2. Two charges of +8.0 mC and -6.0 mC attract each other with a force of 3.0 x 10' N in a vacuum. Wh...

A: The formula for force between two charges q1 and q2  separated by a distance d is given by . F = (K ...

Q: The human heart is a powerful organ. If your heart can take in and discharge about 6773.2 liters of ...

A: Given Volume of blood , V = 6773.2 L  Density of blood , D = 1.06 kg/L  Height lift ,H = 1.7 m  Time...

Q: A piece of plastic has a net charge of +2.0 nC. How many more protons do this piece of plastic have?

A: Given data:  A piece of plastic  Net charge (q) = +2.0 nC Required: Number of more protons 

Q: Resistivity Example No1 Calculate the total DC resistance of a 100 meter roll of 2.5mm^2 copper wire...

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Q: 41. Two identical point sources are 4.5 cm apart, in phase and vibrating at a frequency of 10 Hz. Th...

A: The distance between two identical point sources is d=4.5 cm=0.045 m The frequency of vibration is f...

Q: 1. Which of the following energy flow dia- gram correctly describes a heat engine that op- erates by...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: The figure below shows, at left, a solid flywheel of radius R = 0.550 m and mass 60.0 kg. T Mounted ...

A: Given, Radius=0.550m Mass=60kg Tension in the upper segment of the belt=155N Angular acceleration=1....

Q: Sketch a caricature or diagram of the situation or phenomenon showing that Hubble’s Law strongly imp...

A: Hubble's law is mathematically given by, v = H0 * d Where,v is the galactic velocity, H0 is the hubb...

Q: y 840 N F 38 2 This at pdu an if it were your awn. 35° 31 400 N 2.1 kN a. Determine the magnitue of ...

A: a) Apply the equilibrium condition of forces along the x-axis to determine the value of force F.  A...

Q: While driving along the highway at 40 m/s, you spot a police car 50 m ahead, traveling at a constant...

A: given: u1=40 m/sa1=-1.0 m/s2u2=30m/sa2=0d = 50m

Q: Light of wavelength (6.760x10^2) nm falls on two slits and produces an interferenc pattern in which ...

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Q: An inductor (L = 20 mH), a resistor (R 100N) and a battery (E = 10 V) are connected in series. Find ...

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Q: From a speed of 60 kph, a train decelerates at the rate of 2 m/min² along the path. How far in meter...

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Q: The two masses in the Atwood's machine shown in the figure have an initial speed of v = 0.15 m/s , a...

A: Givenv=0.15 m/s2m2 is moving upwardm1=3.3 kgand m2=4.4 kg

Q: A cart which has a mass of 20 kilograms slides down a frictionless slope of a hill. If the cart star...

A: Given data:  Mass (m) = 20 kg Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 15 m/s Acceleratio...

Q: A. Series circuit: 1. Two 80-2 resistors are connected in series with 0.15 A flowing through them? F...

A: 1) two 80 ohm resistors,  i=0.15A 2) voltage drop across 30 ohm resistor = 4.5 V

Q: An electric current of I ampere is flowing in a long conductor CG as shown in the Fig. 3 (a).54. Fin...

A: GivenAn electric Current I ampere is flowing in a long conductor CG

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!