(a)A car speedometer has a 5% uncertainty. What is the range of possible speeds (in km/h) when it reads 110 km/h? km/h (lowest)?  km/h (highest)?   (b)Convert this to miles per hour. mi/h (lowest)?  mi/h (highest)?

Q: Two shuffleboard pucks of equal mass (puck A and puck B) are involved in a glancing collision (2 D)…

A: In the diagram above, A represents puck A initially at rest, and B represents puck B moving to the…

Q: Consider a thin, uniformly charged rod of length L with total charge Q and test points A, a distance…

A: To calculate the potential difference between points A and B, we must first calculate the potential…

Q: An airplane is travelling N30°E at an airspeed of 340 km/h when it encounters a wind blowing north…

A:

Q: . (Violet) 400 nm 2. (Red) 700 nm = . (Infrared) 800 nm. (Infrared)1600 nm = . THz? THz? THz? THz?

A:

Q: A motorcycle and rider have a total mass equal to 345 kg. The rider applies the brakes, causing the…

A: From Newton's 2nd law, F = Ma Where , M = total mass of the object a = acceleration

Q: Calculate acceleration due to gravity of a simple pendulum of mass 10 kg suspended on 2.7 m wire…

A:

Q: Calculate the value of an electric field at a point 5 m away from two positive electric charges of…

A:

Q: A photon emitted by a blackbody has an energy of 1.021 J. What is the frequency of such a…

A:

Q: Light with a frequenc f glass that has an inde

A: Frequency of light                             f = 5.80 × 1014 Hz The refractive index of glass…

Q: 8) What is the magnitude of the electric field produced by a charge of magnitude 7.50 uC at a…

A: The magnitude of the charge is q=7.50 μC  =7.50 μC×10-6 C1 μC  =7.50×10-6 C The distance is d=1 m.

Q: 1.50 moles of a monatomic ideal gas goes isothermally from state 1 to state 2. P1 = 2.4×105 Pa, V1 =…

A: The number of mole is 1.5 moles. The process is isothermal. The initial pressure and initial volume…

Q: How much will it cost to operate a 4-kW air-conditioner for 12 hours if the cost of electricity is…

A: If a 4-kW air-conditioner operate for 12 hours then the electricity required(in kWh)= 4×12kWh=48kWh

Q: Calculate the length of a wire currying current of 8.3 A and experiencing the force of 5 N in the…

A: Current in wire ,I = 8.3AForce on wire ,F= 5NMagnetic field ,B= 3TAngle of wire with field ,θ=30ο

Q: A force of 280 N is sufficient to keep a 90 kg wooden block moving at a  constant velocity across a…

A:

Q: t) The system in the Figure is in equilibrium. A mass M₁ = 207.0 kg hangs from the end of a uniform…

A:

Q: A painter wishes to know whether or not he can safely stand on a ladder. The ladder has a mass M1 =…

A: The coefficient of static friction between the ground and the ladder is mus = 0.49  Mass of the…

Q: 4. The figure shows an elastic collision of two objects on a frictionless table. Object A has a mass…

A:

Q: 8. A charge q₁ = -5.4 uC is at the origin, and a charge q2 = -2.2. uC is on the x axis at x = 1.0m.…

A:

Q: The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is…

A: length of bar ,L=1.2 mResistance ,R =6.4ΩMagnetic field ,B=2.5TVelocity ,V= 1.7 m/s

Q: Now we have a rod-shaped space station of length 682 m and mass 4.04 x 10^6 kg, which can change its…

A: Initial length of the space station, l1=682 m Mass of the space station, m=4.04×106 kg      (mass of…

Q: Write down an expression for the width of the central bright line on a screen in the single slit…

A: We want to write an expression for the width of the central bright line on a screen in the single…

Q: two masses are placed on a 2-1 mechanical advantage pulley system. Mass 1 is 5 kg, Mass 2 is 15 kg.…

A: See below

Q: A blue car, with mass m1 = 1000 kg and traveling at 20.0 m/s, rear ends a stationary red car with…

A:

Q: What is the current in a circuit that uses 56 W of power through a 2200 μΩ resistor? (Note: 1 Ω = 1…

A: P=56 W R=2200*10-6 ohm P=VI=I2R (AS V=IR ACCORDING TO OHM'S LAW)

Q: ecide if the set of the three vectors 6i+9j+11k,4i+5j+7k, and 0i+ j+k is linearly dependent or…

A: Given: There are three vectors given: 6i+9j+11k, 4i+5j+7k, and 0i+j+k   Concept: A set of vectors is…

Q: The capacitor has an initial capacitance of 1.88 x 10^-12 and has a final capacitance of 1.66 x 10^…

A: Initial capacitance is Co =  1.88 × 10-12 F Final capacitance is C2 =  1.66 × 10-13 F Final…

Q: Write down an expression for the width of the central bright line on a screen in the single slit…

A:

Q: Find phase velocites of 2 waves moving with velocities v₁= 7m/s and v₂= 6m/s, having wavelengths ₁ =…

A: v1 = 7 m/s  v2 = 6 m/s  λ1 = 15 nm  λ2 = 22 nm

Q: You push on a rectangular door at the location of the knob (see diagram for top view). The door s…

A:

Q: 18. A train sounds its whistle as it approaches a tunnel in a cliff. The whistle produces a tone of…

A: Frequency produced by whistle of train fo= 650Hz  Speed of train vs= 21.2m/s   speed of observer…

Q: You have a box containing an unlimited supply of the following resistors: 2.0 Ω and 10.0 Ω. Draw…

A:

Q: Bob is moving away from Alice with speed of 0.5c. Carlos is moving away from Alice and perpendicular…

A: Speed of Bob with respect to Alice: vbob = 0.5c Speed of Carlos with respect to Alice: vcarlos =…

Q: 4. A tiny parasaurolophus is standing 12 cm in front of a spherical lens with a refractive power of…

A:

Q: Who invented the phototypesetting machine?

A: Phototypesetting is a method of setting type and uses photography to make columns of type on a…

Q: 80. A driver slams on the brakes, leaving 88.0-m-long skid marks on the level road. The coefficient…

A:

Q: A long solenoid of radius a carrying n turns per unit length is looped by a wire of resistance R as…

A: Given:radius of the solenoid, aturns per unit length, nthe outer loop has resistance, Rat ti current…

Q: When a car is driven along a straight, horizontal road, it can maintain a maximum constant speed of…

A:

Q: A force of magnitude 5 N acts on an object. A second force of magnitude 7 N acts at 50° to the other…

A: The given vectors are shown below. Here, R is the resultant force.

Q: In optics, what is meant by each of the following terms? (i) Refraction (ii) Index of refraction of…

A: In optics, the phenomenon of Dispersion is a result of Refraction due to difference in Index of…

Q: m=0.41 kg of methanol in atmospheric pressure is heated with an electric heater from T1=45.2 ∘C to…

A:

Q: Describe your approach to the calculation of the period of a satellite moving in the gravitational…

A:

Q: A candle radiates light equally in all directions at an average rate of 80 W. At a certain distance…

A: Power radiated by candle, P=80 W Maximum electric field strength, E0=27.7 N/C

Q: A beam of uniform thickness and density is resting horizontally on two supports as shown below. If…

A: The mass of the beam, mA = 300 kg

Q: A canon is located on the edge of a cliff overlooking the sea as shown below. The cannon is 45 m…

A: See below

Q: Consider a non-rotating space station in the shape of a long thin uniform rod of mass 7.07 x 10^6 kg…

A:

Q: The forces acting on a 8.0×104-kg aircraft flying at constant velocity are shown in the figure…

A:

Q: Describe your approach to the calculation of the escape velocity of a satellite from a planet. O a.…

A: To find : The escape velocity of satellite from a planet Let the mass of planet = M Let the mass of…

Q: A pot of 90 N is supported at A by the three cords. Determine the forces in cords AB, AC and AD.…

A: To determine the forces in cords AB, AC, and AD, we need to use the principles of equilibrium. The…

Q: Water flows through a horizontal cylindrical pipe of varying cross section. The velocity is 5.1 m/s…

A: Given: The velocity at point 1: v1=5.1 m/s Pipe diameter at point 1: d1=1.4 cm Diameter at point 2:…

Q: 2. Consider the concepts of kinetic energy (KE) and gravitational potential energy (GPE) as you…

A: The ball is held 1.4 m above  the ground. KE denotes the kinetic energy of the ball and GPE denotes…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.