A ball with a mass of 0.6 kg hits a wall with a velocity of 10 m/s. Wall applies 4000 N force to the ball and it turns back with 5 m/s velocity. Find the time of ball-wall contact

Q: Problem 1: Travelling with an initial speed of 70 km/hr, a car accelerates at 6000km/hr² along a…

A: initial velocity (u) = 70 km/hr final velocity (v) = 120 km/hr acceleration = 6000 km/hr2

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Q: A circuit has a resistance of 3.6 ohms and draws a current of 4.2 A what is the potential difference…

A: First Question: The potential difference (V) across a conductor equals the product of the current…

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Q: In an experiment, a shearwater (a seabird) was taken from its nest, flown 5150 km away, and…

A: distance flown = 5150 km time taken by the bird to reach back the nest = 13.5 days

Q: en 2 atoms. How much amper(A) is needed to obtain 5.8x10-19 joules of electro volts(eV)? HW-8: Find…

A: Given:-  The resistance is R = 0.8 ohm between the two atoms.  The  Energy needed to obtain is…

Q: 8- A rope under tension (20 lb) and the density of the longitudinal rope is (0.003 lb/ft), the…

A: Given, A rope is under tension, m = 20 lb density of the rope, μ = 0.003 lbft

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Q: TRUE OR FALSE . Mass like 50 kg is an example of a vector quantity.

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Q: In a certain space at the earth’s surface the magnetic field is 0.1 T directed east. What is the…

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Q: A 2.5-F capacitor is charged to 12 V and then discharged through a 4.8 Ω resistor. What will be the…

A: Write the given values with the suitable variables. C=2.5 FV=12 VR=4.8 Ωt=20 s Here, C, V, R, and t…

Q: S3 92 S2 93 S5 SA

A: Given, Charges,  q1 = 4.00 nCq2 = -4.00 nCq3 = 2.40 nC

Q: To circle Earth in low orbit, a satellite must have a speed of about 2.9 x 104 km/h. Suppose that…

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Q: Which of the following is true about the neutral point produced by the electric field of two…

A: Neutral point is a point where net electric field is zero and because of this any charge placed on…

Q: Kindly refer to the diagram below. What is the resultant electric force on charge A due to charges B…

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Q: Find the acceleration of m2

A: Given; Find acceleration of m2 ? If m1=300 g  m2=500g  F=3.4 NWhere, Friction and mass of the pulley…

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Q: Problem 1: A chandelier hangs h = 0.72 m down from two chains of equal length. The chains are…

A: The free body diagram is represented by figure 1

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Q: weight for this  sprinter. Identify all the forces on the foot of the person and draw an accurate…

A: Given:-  An accelerating sprinter pushes off with This force applied on the ground horizontally. The…

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Q: Water flowing in a horizontal pipe is at a pressure of 1.40 x 10^5 Pa at a point where its cross-…

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Q: A body does 55 Joules of work in 6 seconds . What is it's power ?

A: Given data :                        Work done    =    W                      Time  Taken    =     t…

Q: beam of electrons is accelerated across a potential of 14.40 kV before passing through two slits.…

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Q: If the momentum of a flying brick is 40 kg x m/s and it's mass is 8 kg. Calculate its velocity ?

A: Given data :                            Mass     =     m                     Momentum   =    P…

Q: Ritche The potential difference across a 100 ohm resistor is 4.0 volts . What is the power…

A: All three resistance connect in parallel

Q: Q1: 1-Draw and explain Diffraction Grating.

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Q: "If the electric field is zero everywhere inside a region of space, the potential must also be zero…

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Q: Question 2 Ignoring air resistance, if a 10 kg ball and a 100 kg box were both dropped from the top…

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A: Mass is denoted using m or M. Weight is the measure of the amount of force acting on a mass due to…

Q: What is biosphere

A: Introdution: The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It…

Q: How do moving charges create magnetic field? (five sentences)

A: The magnetic field is the region of space found around a magnetic field or moving charge(electrons)…

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A: Part A solution

Q: 16 A 0.400-kg blue bead slides on a frictionless, curved wire, starting from rest at point AD, where…

A: mass of blue bead (m1) = 0.400 kg initial velocity of blue bead (u) = 0 msmass of green bead (m2) =…

Q: What is its m /S^2, fin

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Q: An erect object is 25 cm from a concave mirror of radius 42 cm. What is the lateral magnification of…

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Q: 3R 4R XX X 2R x x X x JX 19. Two long, hollow, concentric conducting cylinders carry currents in…

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Q: 5. Two forces acting on an object, F1=30 N, F2=40 N. The angle between is 90°. To make the object…

A: We have two forces acting on an object of magnitudes F1=30 N and F2=40 N and the angle separating…

Q: Two alkaline AA batteries (1.5 V) are placed in series. What is the total voltage of the batteries?…

A: Problem 1 Given Voltage of each battery is V=1.5 V Two batteries are connected in series…

Q: Problem 6: A crate of mass m = 0.84 kg is on a frictionless incline that makes an angle of 0 P =…

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