An electric bike starts from rest and accelerates at a rate of 5.0 m/s2 in a straight line until it reaches a speed of 30 m/s. The vehicle then slows at a constant rate of 2.0 m/s2 until it stops. How much time elapses from start to stop?

Q: What is the magnitude and direction of the force given by D at A (FD on A)?

A: Given, qA = 2.5×10-6 CqD = 2.5×10-6 Cr = 2m Distance between A and D = r2+r2 =2r force given by D at...

Q: A railroad car having a mass of 13 Mg is coasting at 1.5 m/s on a horizontal track. At the same time...

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Q: The exhaust temperature of a heat engine is 230 degrees Celsius. What must be the high temperature o...

A: exhaust temperature of heat engine (TL) = 230oC carnot efficiency percentage = 28%   

Q: If the Electric Force between two charges is 1 N when separated by 1 millimeter, what would be the f...

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Q: 102 102 100 ww 102 102 100 A 12V

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Q: 09: A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000 t...

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Q: In a car lift used in a service station, pressure is transmitted by an incompressible liquid from a ...

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Q: An electron in a TV CRT moves with a speed of 5.5 × 107 m/s, in a direction perpendicular to the Ear...

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Q: A 4,000 pound car travels at 30 miles per hour on a circular path of radius 100. feet. In order to p...

A: The mass of the car = 4000 lb Speed of the car = 30 mph Radius of the path = 100 ft First, we conver...

Q: A galvanometer has a coil resistance of Realy = 84.9 S2. It is to be made into a voltmeter with a fu...

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Q: It is found that the resistance of a coil of wire increases from 40 ohms at 15 degrees Celsius to 50...

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Q: Suppose a 5.00 m diameter telescope were constructed on the Moon, where the absence of atmospheric d...

A: Given value--- diameter of lens = 5 m. wavelength = 500 nm. distance between Mars and moon = 8 × 10...

Q: Two electrons are initially separated by 5.0 X 10^-8 m. When they are both released, they fly apart....

A: distance (d) = 5×10-8 m charge (q) = -1.6×10-19 C 

Q: 8. The work done by an ideal gas is given by w- ['rv. W = PdV, Compute the work done in i) an isothe...

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Q: 1. Suppose you have a 12.0 V motorcycle battery that can move 5000 C of charge, and a 12.0 V car bat...

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Q: A magnet produces a 0.450 T field between its poles, directed to the east. A dust particle with char...

A: Given: B=0.450 T (East)q=-3.10*10-18 Cv=0.30 cm/s =0.3*10-2 m/s (straight down in B field)

Q: Please write on the paper. A 200g bullet which has velocity 200 m/s sticks to the stationary block ...

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Q: The top of a fence post is hit by a pile driver and it is partly driven into the ground. The distanc...

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Q: imuth angles for a city 40° N latitude on june

A: We know that the formula of the solar declination angle  is given as  δ= 23.45sin360365284+dwhere d ...

Q: Which of the following is a reversible thermodynamic process? O finite temperature change free expan...

A: Solution: Given: Given the three processes, we are required to find which process is reversible. Pro...

Q: A cicular segment of radius 10 cm, subtends an angle of 60° at the centre. A current of 9 Ampere is ...

A: Given, radius of the circular segment, r = 10 cm angle subtends with the center, α= 60° = π3 current...

Q: Calculate the evaporation rate from an open water source, if the net radiation is 300 W/m? and the a...

A: Given Net Heat radiation ,Qnet=300 W/m2Air temperature ,T=30°CDensity of water at 30°C=996 kg/m3

Q: What will be acceleration of a body of mass 7 kg if a force of 420N is applied to if ?

A: Given: The mass of the object is 7 kg. The applied force is 420 N.

Q: Identify the first step of mesh analysis a. Kirchhoff's KVL is implemented for every loop O b. Assig...

A: According to question we need to find that which option is correct. 

Q: A canon ball, projected at angle of 60° above the horizontal strikes a tower 30m away at a point 15m...

A: Note: As per guideline we are suppose to do only three subpart from multipart question. Given, angle...

Q: Pressure of the Photosphere. The gas pressure of the photosphere changes substantially from its uppe...

A: We know that the ideal gas equation is given as  PV = nkTP = nVkTP = nvkT  where P is the pressure  ...

Q: Assuming that there are 1.5 free electrons per gold atom. The electrical conductivity and density fo...

A: According to question we need to find--- (a) Calculate the number of free electrons per cubic meter...

Q: An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate...

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Q: Crossed electric and magnetic fields are established over a certain region. The magnetic field is 0....

A: Given value--- magnetic field = 0.59 T. electric field = 3.48 × 10⁶ V/m. We have to find--- What ...

Q: 2. A negative test charge would be at a high electric potential when held C. Farther away from a pos...

A: As per our guidlines we are supposed to answer only three question for as MCQ. kindly repost other q...

Q: A white billiard ball moving the speed Of 25m/s in positive x axis collide with a stationary black b...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for yo...

Q: Several electrons move at speed 8.40 × 105 m/s in a uniform magnetic field with magnitude B = 0.510 ...

A: In the figure, the value of the speed of the electron is given 6.40x105 m/s. We will solve the quest...

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: Where would the bicyclist hav...

A: Speed of bicyclist at point A is VA = 0 m/s (as bicyclist stopped) and  All other detail can be obse...

Q: A uniform circular disk of radius R = 36 cm has a hole cut out of it with radius r = 16 cm. The edge...

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Q: Please refer to the following instructions  In Exercise 12.4 of your book, University Physics 15th ...

A: Note: Final answer in proper SI unit and without scientific notation is mentioned in last step. 

Q: A block of glass has an index of refraction equal to n_g=1.68. The glass is surrounded by oil which ...

A: Given that:- Refractive index of glass=1.68

Q: A capacitor, 3.3 microFarads, was charged to have 40 microCoulombs across its plates. How much batte...

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Q: A canon ball, projected  at angle of 600 above the horizontal strikes a tower 30m away at a point 15...

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Q: The mass of the sun is 1.99×10^30kg and its distance to the Earth is 1.50×10^11m What is the gravita...

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Q: What constant acceleration would a car, starting from rest, have to sustain in order to reach a velo...

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Q: -6 -6 Four point charges (two with q = +2.5 × 10' C and two with q = -2.5 x 10' C) are situated at t...

A: Given : q = 2.5 × 10-6 C , q = -2.5 × 10-6 C  Distance between two charges , r = 2 m  Find : Magnitu...

Q: The highest possible efficiency of an engine operating between temperatures of 11 oC and 215 K is

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Q: container is partially filled with a known amount of fluid that has a density of 903 kg/m3. When a ...

A: Given that                 The density of the fluid (ρ) = 903Kg/m3                 The fluid level r...

Q: -6 Four point charges (two withq = +2.5 × 10-0 C and two with q = -2.5 × 10¬º C) are situated at the...

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Q: A mixture of violet light (wavelength of 410 nm) and red light (wavelength of 660 nm) falls on a di...

A: there are 104 lines per cm Hence distance between two adjacent lines =d=1104=10-4cm =10-6m

Q: The gravitational force of a star on an orbiting planet 1 is F1. Planet 2, which is four times as ma...

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Q: A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.8 kg to a frie...

A: The Given Parameters: Mass of the book mb = 1.8 kg Mass of the student and skateboard mc = 113 kg In...

Q: A 29-gg rifle bullet traveling 230 m/sm/s embeds itself in a 3.3-kgkg pendulum hanging on a 3.0-mm-l...

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Q: A wire of length L = 0.25 m and mass m = 0.085 kg carries a current of I = 0.55 A. The wire is float...

A: Solution: Given: g = gravitational acceleration = 9.81 m/s2 L = length of wire = 0.25 m I = current ...

Q: A 2.4 m segment of wire supplying current to the motor of a submerged submarine carries 950 A and fe...

A:

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 –