You are tasked to measure a 2.1 m door with using only a ruler. On your first try, you recorded a measurement of 214 cm. You repeat the measurement and obtain a value of 216 cm. What is the value of the true percent relative error considering your most recent measurement?

Q: A lamp is plugged into a 120 V outlet. The light bulb has a power rating of 60 VW. What is thè curre...

A: The power of the light bulb is define as the product of the voltage and current.                    ...

Q: In semiconductors, the conductivity 2 poin is mainly proportional to a function of temperature: incr...

A: The electrical conductivity of any substance be it a conductor, an insulator or semiconductor depend...

Q: A rotating object's angular position is given by 0(t) = (1.70t2 - 8.15t + 2.55) rad, wheret is measu...

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Q: What is the energy of an electron with a wavelength of 10 pm?

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Q: What is the SPL 50 meters from a 10 W monopole source emitting a continuous 2 kHz tone in seawater w...

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Q: Find the magnitude and direction (up or down) of the current 1 passing through the R1 resistor. Star...

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Q: 23.19 • Two point charges 91 = +2.40 nC and Figure E23.19 92 -6.50 nC are 0.100 m apart. В Point A i...

A: a) potential at A Va = k ( q1 - q2) / r Va = 9* 10^9* 10^-9* ( 2.4 - 6.5) / 0.05 Va = - 735 V

Q: A particle is moving along a circular path with tangential acceleration function of a(t) = (0.12t + ...

A: Given that:- Velocity of particle (at t=3 sec)=0.4m/s

Q: The parallel plates in a capacitor have an area of 1000 cm? (1.00 EXP-1 m²) and are 10.0 mm (10.0 EX...

A: note that charge in the capacitor does not change when dielectric added between the plates we know c...

Q: An object is projected at an angle of 60 degrees with the horizontal with an initial velocity of 15 ...

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Q: The flow of blood in a large artery of an anaeshetized dog is diverted through a venturimeter. The w...

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Q: A heavy chandelier with mass 140 kg is hung by chains in equilibrium from the ceiling of a concert h...

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Q: Silicate flint glass has an index of refraction of 1.60. Determine the wavelength of cyan light in t...

A: Given  Refractive index = 1.6  Wavelength in air = 485 nm 

Q: N circular loops of conducting wire of radius 3.0 cm carries a current of 10 A. If the magnetic fiel...

A: The answer is below

Q: 12:46 A M 44 3.58 As shown, a round viewing window of diameter D = 0.8 m

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Q: Q34) In a particular crash test, a car of mass 1500 kg collides with a wall, as shown in Figure 31. ...

A: GivenMass of the car (m) = 1500 kgDuration of collision (t) = 0.150 sVelocity of car before collisio...

Q: Which of the following is TRUE for an object thrown along horizontal? Choose the answer: a. it has a...

A: Neglecting air friction, there no force in horizontal direction, so horizontal velocity will be cons...

Q: In the Marvel comic series X-Men, Colossus would sometimes throw Wolverine toward an enemy in what w...

A: Given: The initial velocity of the Wolverine's is 16 m/s. The angle of projection is 26.4o.

Q: A rectangular coil of 100 turns measures 40.0 cm by 20.0 cm. This coil is placed next to an electrom...

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Q: Consider a 12-loop coil with a diameter of 8 cm; a north-leading bar magnet moves further away from ...

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Q: Using the vy component of the initial velocity for a projectile projected at an angle, which of the ...

A: Time to reach the peak, t = vy/g Max height, h = vy2/2g Since g is constant, if vy is known we can c...

Q: Q4: The acceleration of the car is shown below in the figure, if you are given that when t was 0 s, ...

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Q: . A trench mortar tires a projectile at an angle of 53" above the horizontal with a muzzle velocity ...

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Q: Two forces F, - (68.50/ - 40.73ĵ) N and F, = (23.57Î - 72.94j) N are exerted on a particle. The part...

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Q: In the circuit shown each resistor has a resistance of 8 ohms. What is the equivalent resistance bet...

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Q: Vectar Á has x and y componants of -8.60 cm and 17.0 cm, respactively; vactor K has x and y componen...

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Q: A car is standing 200 m behind a bus, which is also at rest. The two start moving at the same instan...

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Q: TRUE OR FALSE 1. Angular momentum is always positive. 2. An object that has a large angular veloci...

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Q: Proof of Simple Pendulum.

A: Here we have to find the time period frequency of simple pendulum.

Q: In the given circuit, an ideal voltmeter connected across the 10 Q resistance reads 2V. The internal...

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Q: How do you illustrate an electron transfer?

A: When two materials are rubbing, then the electrons of outermost orbit of the material of lower elect...

Q: A truck is traveling down a road with a 3-percent grade at a speed of 90 kph when the brakes are app...

A: 3-percent grade means 3m up on every 100 m forward motion, so angle is tanθ=3100θ=tan-1(0.03)=1.720 ...

Q: A 15cm long solenoid has 3500 turns of wire and carries a current of 9.0 A. Calculate the strength o...

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Q: 1.) Write down the correct loop equations for the three loops in the circuit diagram shown here: a) ...

A: According to kirchhoff's first law Algebraic sum of current at a junction is always zero According t...

Q: A cab driver heads south with a steady speed of v, = 24.0 m/s for t, = 3.00 min, then makes a right ...

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Q: 3. Three people pull on rope attached to a ring. One force Fi has magnitude of 100N and pulls along ...

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: Which is true for “the motion of an object depends on the forces that are exerted_ it, not the force...

A: Ans is a "the motion of an object depends on the forces that are exerted on it, not the forces that ...

Q: The electrical conductivity of a metal proportional to the electron density volume charge density cu...

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Q: Column B Column A Mutual action between two objects where each object exerts a force on the other Fo...

A: When two objects interact with each other, they will exert a force on one another, hence interaction...

Q: Answers When a light bulb is connected to a 4.5 V battery, a current of 0.12 Amps passes through the...

A:

Q: Two bumper cars at the county fair are sliding toward one another (see figure below). Initially, bum...

A: Mass of first car m1=596 kg, initial velocity of first car u1=5.7 m/s (due east) and mass of second ...

Q: A child drops a toy with a mass of 200 g from the balcony of a building 20 m as tall as he is, verti...

A: Given:m =200gxo=20mt=3sg=9.8 m/s2vo=0 m/s

Q: Determine the weight in newton [N] of a car whose mass is 1500 kg. Convert the mass of the car to sl...

A: Mass of the car is given to be m=1500 kg. We know that 1 kg=0.068 slugs and acceleration due to grav...

Q: Find the energy of the following. Express your answers in unit (a) a photon having a frequency of 4....

A: Given1eV=1.6×10-19 J

Q: A circuit with a voltage of 1.5 V has a 5 Ohm resistor. What is the current running through the wire...

A: GivenCircuit has voltage ,V=1.5 VResistance of resistor ,R=5 Ω

Q: The wavelengths of visible light range from approximately 400 nanometers to 750 nanometers. a. Conve...

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Q: Three positively charged point particles, each with idential mass and velocity, pass through an aper...

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Q: Q 2(a)The E* particle has a rest energy of 1385 MeV and a lifetime of 2.0 x 10-23 s. What would be a...

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Q: A fixed mortar can fire a bomb with a velocity of 60 m/s and can be set between an angles 10 to 75 d...

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Q: 10. The dot product of a, · a, is equal to: а. 1 b. 0 C. C. az d. -1

A:

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.