hat constant acceleration is required to increase the speed of a car from 20 mi/h to 45 mi/h in 5 s?  2. A car braked with a constant deceleration of 40 ft/sec2, producing skid marks measuring 65 ft before coming to a stop. How fast was the car traveling when the brakes were first applied? Round to the nearest hundredth.

Q: = Find the potential difference V(11.0 m) - V(-1.0 m) given the electric field E(x) = 24.0x^2 +0.0x…

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Q: A constant net force of 12.6 N directed in the x-direction is exerted on a 2.1 kg object for a time…

A: Force, F = 12.6 NMass, m = 2.1 kgTime, t = 1.7 sConcept:If be the change in momentum within time…

Q: Consider the box on an incline as shown below. The box is being pulled up the incline with a force…

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Q: 3: A dragster accelerates from rest down a street of length d = 400.0 m. In the absence of any…

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Q: game show ran popu game She spins revo tions, the the initial angular speed of the wheel is 4.00…

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Q: A rectangular block of dimensions 2 m x 3 m x4 m is submerged vertically in water. What is the…

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Q: A displacement vector in the xy plane is 48.0 m long and directed at angle 0 = 35.0° in the figure.…

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Q: A rod is lying on the top of a table. One end of the rod is hinged to the table so that the rod can…

A: Force is applied perpendicular to the rod.Force is directed at an angle with respect to rod.Sum…

Q: (a) Suppose a meter stick made of steel and one made of invar are the same length at 0°C. What is…

A: See below

Q: a ballistic pendulum, a bullet with mass of 50.0 g is fired in to the catcher with mass of 500.0 g.…

A: Bullet mass m=50 g=0.05 kgCatcher mass M=0.5 kgPendulum length l=60 cm=0.6 mAngle =

Q: A-2.0 μC charge lies at the position x = 0.0 cm and a 4.0 µC charge lies at the position x = 6.0 cm.…

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Q: Three particles of charge 3nC and mass 5mg are placed on the corners of an equilateral triangle with…

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Q: Calculate the resistance in an RL circuit in which L= 0.04 H and the current increases to 90% of its…

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Q: a) Calculate the linear acceleration of a car, the 0.310-m radius tires of which have an angular…

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Q: A camera lens used for taking close-up photographs has a focal length of 25.0 mm. The farthest it…

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Q: When running on its 11.4 VV battery, a laptop computer uses 8.3 WW. The computer can run on battery…

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Q: The 55,000 kg space shuttle used to fly in a 250-km-high circular orbit. It needed to reach a…

A: Shuttle mass m= 55000 kg Initial orbit radius = (250×10^3+6×10^6) m =6.25×10^6 m Final orbit radius…

Q: Ernst Rutherford discovered the atomic nucleus by shooting alpha particles (helium nuclei) at gold…

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Q: #3: A gate in an irrigation canal is constructed in the form of a trapezoid m wide at the bottom, 46…

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Q: Part A Energy (J) 5 4 32 3 2+ 1 0+ 0 2 4 6 8 -x (mm) For the potential-energy diagram in (Figure 1),…

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Q: In a downtown office building, you notice each of the four sections of a rotating door has a mass of…

A: Mass of each door m= 80 KgAngular  acceleration α=0.500 rad/s2Applied Force F=66 N

Q: In the circuit below, resistor R 1 dissipates 0. 40 W. Resistors R2 and R3 are identical.What is the…

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

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Q: A point charge Q₁ = +5.8 µC is fixed in space, while a point charge Q2 = +2.8 nC, with mass 6.3 µg,…

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Q: Why is the force of gravity between two light objects like yourself and your friend not too…

A: Force of gravity or gravitational force is a force which pulls objects with mass toward each other,…

Q: kg plastic rod of lengt 1.20 m table. attached to the table, and the rod is free to pivot about this…

A: given that , mass of plastic M = 2 kg ,length r = 1.20 m,disk mass m = 30 g = 0.03 kg ,initial…

Q: A 4.00 cm tall object is 24.0 cm in front of a converging lens that has a 16.0 cm focal length.…

A: The object of height 4 cm is placed in front of the converging lens with a focal length of 16 cm at…

Q: An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.7 MJ when…

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Q: A student performs a double-slit interference experiment. The student records the fact that a…

A: It is given that,The angle of the third order dark fringe,  The wavelength of the light, The angle…

Q: The distance to Rigel is 776.2 light years. Convert this distance to astronomical units.

A: This problem can be solved using basic conversion formula of light year into astronomical unit Given…

Q: Despite being composed primarily of gas, Jupiter and Saturn have large magnetic fields. This is…

A: Jupiter and Saturn have large magnetic field because of their size. It means that they have a larger…

Q: SUZ The figure shows an electron passing between two charged metal plates that create a 108 N/C…

A: See below

Q: 3. Create a graph of the magnetic field vs. distance from the wire, where the independent variable…

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Q: A ball of mass 3.2 kg and speed 1.0 m/s collides head-on with a 2.5 kg ball at rest. If the…

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Q: tanding waves of frequency 17 Hz are produced on a string that has a mass per unit length of 0.0160…

A: Given f = frequency of the standing wave (17 Hz in this case) n = mode of the standing wave (for…

Q: (a) The mine car of mass 200 kg is hoisted up using the cable and motor M. The force of the cable is…

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Q: Be sure to review Example 19.9 before attempting these problems. Figure 10 V [ R2₂ ←1₁ 1 of 1 Part A…

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Q: A 850 g cart is released from rest on a frictionless, 45 ∘ ramp, 120 cm from the bottom of the ramp.…

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Q: A CD has a mass of 17g and a radius of 6.0cm.  When I settled I to a player, the CD starts from rest…

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Q: A block with mass m1 = 9.2 kg rests on the surface of a horizontal table which has a coefficient of…

A: The block of mass 9.2 kg is resting on the horizontal surface while the block of mass 10.3 kg is…

Q: Figura 3(e) I I 1 1 1.82 m

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Q: A gardener is using a tool as shown in the figure to pull weeds. 24 cm You will notice that the tool…

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Q: The Electric Field of a Charged Semi-Circle A semi-circle non-conducting wire with radius 85.00 [cm]…

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Q: A bullet of mass 52 grams is fired horizontally into a 5.2 kg wooden block on a horizontal surface.…

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Q: camera with a 93.2-mm focal length lens is being used to photograph the Sun. Part a: What is the…

A: Focal length, f = 93.2 mm = 93.2×10-3 mObject distance, u = 1.50×108 km = 1.50×1011 mObject height,…

Q: how many times as intense as a 85 db sound then an 50 DB sound? 

A: Loudness, L1 = 50 dBLoudness, L2 = 85 dB

Q: A proton moving at 5.80 × 10 m/s through a magnetic field of magnitude 1.78 T experiences a magnetic…

A: Given in qustion - Speed of proton(v) = Magnitude of magnetic field(B) = Magnitude of the force(F) =…

Q: A 20-ampere fuse element will open at 203 degrees Fahrenheit due to heat from excessive current. At…

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Q: When you apply a force F= 360 N to the left to move a box by a distance 8.8 m to the left, what is…

A: F=360 Nd=8.8 m

Q: Two objects, A and B, are in contact with each other on a frictionless surface. Object A has a mass…

A: We have two objects A and B, which are in contact with each other on a frictionless surface. The…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –