car starts from rest and accelerates to a speed of 60 mi/h in 20 s.  The acceleration during this period is constant.  For the next 20 min, the car moves with a constant speed of 60 mi/h.  At this time, the driver applies the brake, and the car decelerates to a full stop in 10s.  The variation of the speed of the car with time is shown in the diagram.  Determine the total distance traveled by the car, and the average speed of the car over this distance.

Q: If a force of 50.0 N acts on a 3.0 kg object for 2.0 seconds, what will its change in momentum be?

A: Force: 50.0 N Mass of the object: 3.0 kgTime: 2.0 seconds

Q: A traveling sinusoidal wave is modeled by the expression of; y(x,t) = 0.1sin(25.1x-48.7t) where all…

A:

Q: One and of a uniform 3.30-m-long rod of weight is supported by a cable at an angle of 8-37 with the…

A:

Q: A person stands at a point P relative to two plane mirrors oriented at 90°. How far away do the…

A: The distance between the person and the mirror:

Q: laser produces light waves with a beam intensity of 22 Wm-2. What will be the intensity if the…

A:

Q: Given hubble expansion and the accelerating expansion of the universe, what equation would be used…

A: To calculate the maximum go-return distance (maximum comoving distance from a point of origin an…

Q: A person stands at a point P relative to two plane mirrors oriented at 90.0°, as shown in the…

A: Distance between object and its image in plane mirrors is equal to two times of distance between…

Q: The figure below shows a long straight wire near a rectangular current loop. The current in the wire…

A: The magnetic force between two parallel current carrying wires is given byThe force is attractive…

Q: Group Work What is the terminal voltage of a large 1.54-V carbon-zinc dry cell used in a physics lab…

A:

Q: The drawing shows three situations - A, B, and C - in which an observer and a source of…

A: According to the Dopplers effect the frequency observed by an observer when both source and observer…

Q: A diver m diver's a

A: Number of revolutions made by the diver,                                                         n =…

Q: of th following is the best example of thermal energy A. a ball sitting at the top oa hill B.a hot…

A: Thermal energyThermal energy is energy which produced when the vibration of atoms and molecules in a…

Q: Flying Circus of Physics When a slice of buttered toast is accidentally pushed over the edge of a…

A:

Q: Two children pull a third child backwards on a snow-saucer sled exerting forces F1 = 9.5 Nand F2 =…

A:

Q: QUESTION 1 A particle with a charge of 5.60 is traveling with a velocity of 3000 m/x in the…

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Q: A uniform 4 m, 60 N horizontal plank is shown with a 40 N weight resting on top, 1.0 m from the…

A:

Q: A bunjee jumper has an elastic cord attached to his feet. The cord whose unstretched length is 10 m…

A:

Q: Two identical pucks collide elastically on an air hockey table. Puck 1 was originally at rest; puck…

A: Two identical pucks collide elastically on an air hockey table. Puck 1 was originally at rest (v=0)…

Q: i) ii) iii) Question: The origin of the x-y cartesian coordinate system is at 0 and x'-y' is the…

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Q: The single slit diffraction pattern shown below was made with light with = 320 nm. The screen was…

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Q: A mass of 1.33 kg is initially at rest upon a frictionless incline of 57 degrees. How far down the…

A:

Q: (numbers 29-30) A total of three forces act on an object, two of which are shown. The object is in…

A: A total of three forces act on an object two of which are shown.Let us consider the component of…

Q: 11. A 0.9cm-radius garden hose has a 0.250cm-radius nozzle attached to it. The flo rate through hose…

A:

Q: Problem B The decay rate of a radioactive source decreases by 39% in 97 h. Determine the half-life,…

A: We can use the equation for radioactive decay:N(t) = N0 * e(-t)N0 is the initial amount of…

Q: 23. A pendulum is made by hanging a mass from a string. The mass is released from rest with the…

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Q: A point mass of 0.33 kg is fixed to the end of a 1.23 m long string that is fixed at the other end.…

A:

Q: A 4900-pF capacitor is charged to 120 V and then quickly connected to an inductor with 83-mH…

A:

Q: The long, thin wire shown in the figure (Figure 1) is in a region of constant magnetic field B. The…

A:

Q: A mass/spring system is set into simple harmonic motion having a period of 0.62 s. If the mass…

A: In general, a body is said to be in simple harmonic motion when its restoring force is in proportion…

Q: ny radioactive dating method is used, experimental error in the measurement of the sample's activity…

A:

Q: Q 4(b) Germanium has a band gap of 0.7 eV. If the Fermi energy lies at the valence band, calculate…

A:

Q: Suppose that 6 J of work is needed to stretch a spring from its natural length of 28 cm to a length…

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Q: n sign transformer has a 520W520W AC output with an rms voltage of 17 kVkV when connected to a…

A:

Q: Which of the following statements correctly describe torque? The largest torque that can be provided…

A: Torque is defined as

Q: Exercise No 4: Two blocks are attached to opposite ends of a string that passes over a massless,…

A:

Q: What are density of energy staste in Matel? Derive an expression for density of energy state and…

A: The density of states (DOS) in a metal refers to the number of available electronic energy states…

Q: A transverse wave travels across a string having a linear mass density 0.068 kg/m. The wavelength of…

A:

Q: In the circuit shown in the figure above, where would you connect your meter's test probes to…

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Q: Which of the following statements is not true about electric field lines?

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Q: Submit Answer Tries 0/6 (b) What is the rate of energy dissipation in the resistor? Submit Answer…

A: Applied force on rod F=1.30 N Speed of the rod v=2.30 m/sLength of rod=L Magnetic field=B

Q: Draw a ray diagram of a 4.0 cm high at 4 cm away on a concave mirror. The focal length of the mirror…

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Q: 6.15 Calculate the electron heat capacity at 1000 K in Na, Al and Cu metals using the following…

A:

Q: 344454 12 13 14 15 16 17 18 19 20 Observe the behavior of the graph. What is the form of the…

A: height = y vertical component of velocity = Vytime = t

Q: A laser emits a narrow beam of light. The radius of the beam is 9.3 mm, and the power is 4.1 mW.…

A: The radius of the beam isr=9.3 mm=0.0093 mThe power isP= 4.1 mW = 0.0041 W

Q: A converging lens has a focal length of 12 cm. If the object is placed 17 cm from the lens, what is…

A:

Q: ertical, right-circular, cylindrical tank measures 30ft high and 20 ghing 57- lb ft3 rk: . How much…

A: Height of the tank  Diameter of tank    Radius of tank Weight density of the oil

Q: . The quarterback of a football team releases a pass at a height of 8 feet above the playing field,…

A:

Q: An object is launched with an initial velocity of 20 m/s at an angle of 26.1 degrees relative to the…

A: Initial velocity of the object is u = 20 m/sProjection angle of the object is = 26.1

Q: : Suppose a generator has a peak voltage of 237 V, and its coil with 500 turns and a diameter of…

A:

Q: (numbers 39-40) A 24 N force pulls upward on a 3 kg mass with a 5 kg mass hanging below as shown.…

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 –