Q: Five cylindrical wires are made of the same material. Their lengths and radii are: Wire 1: length e,…
A:
Q: What would be the final temperature of a mixture of 100 g of water at 90°C and 600 g of water at…
A: We know thatQ=mC(Tf-Ti)WhereQ=Heat energym=mass of materialC=Specific heat capacityTf=Final…
Q: 1. Initially at rest, acceleration = 4 ms-², time taken = 8 s. Find the distance. %3D a) 100m b)…
A:
Q: A sample of oxygen gas has a volume of 12000 cm3 at 600.mm Hg. What is the new pressure when the…
A:
Q: HEAT TRANSFER 3. A Styrofoam cooler has total wall area (including the lid) of 0.80 square meter and…
A:
Q: In the circuit shown, 30 Determine the following: 2v+ A. Magnitude and direction of the current B.…
A: In this question we have to determine the magnitude and direction of the current in the circuit and…
Q: 5) Discuss the physical interpretation of any one Maxwell relation.
A: Physical significance of maxwell's Ist equationEnclosed by the closed surfaces, representing Gauss's…
Q: 3-Viscosity coefficient (n) of fluid defines the . between shear stress and rate of change shear…
A: Viscosity is defined as the degree up to which fluid opposes the flow of fluid when a force is…
Q: What is the magnitude of the electric force between two electrons separated by a distance of 0.10 nm…
A:
Q: Jose and Joshua left the campus at 4:00 pm. Jose is riding a motorbike at the rate of 45 kph due…
A:
Q: Which of the following is NOT equivalent to the statement of the second law of thermodynamics?…
A: Let's check each option one by one 1. The entropy of the universe tends to maximum This is the…
Q: A cylindrical tank is half-full of gasoline having weight density of 42 Ibs/ft3. If the axis is…
A:
Q: energy of the object
A: Given; An object acted upon by the forces; F1=4iN F2=i^-j^NDisplacement of the object is; ⇒…
Q: 1 Polarizers I000 Three polarizers are arranged as shown in the figure. The second polarizer is…
A:
Q: 5. A pipe that is open on one end produces a harmonic frequency of 441 Hz. The next harmonic happens…
A:
Q: A uniform electric field is directed downward and has a magnitude of 8 N/C. Find the magnitude and…
A:
Q: Two charges Q1(+2.00μC)Q1(+2.00μC) and Q2(+2.00μC)Q2(+2.00μC) are placed symmetrically along the…
A: Given:- Two charges Q1 = +2.00μC Q2 = +2.00μC both charge placed symmetrically along the x-axis…
Q: 3) A golf club exerts an average horizontal force of 1000 N on a 0.045-kg golf ball that is…
A:
Q: a. Solve for the electrical force on the 7 C charge if it is 5 m from -2 C charge. b. When a piece…
A:
Q: 2. The ends of the trough are equilateral triangles having sides with lengths of 2 ft. If the water…
A:
Q: An electromagnetic plane wave is propagating in the +x direction. At a certain point P and at a…
A: The ratio of the magnitude of electric field to the magnitude of magnetic field in any…
Q: An atomic clock is placed in a jet airplane. The clock measures a time interval of 1800s when the…
A: Given:- An atomic clock is placed in a jet airplane. The clock measures a time interval of the…
Q: The Achilles’ tendon inserts on the calcaneus (the heel bone) at a distance of 8 cm from the axis of…
A: We have to apply torque concept here. Torque=radius×force
Q: Differentiate the Magnetic field produced by a current on a circular loop than in a straight wire.…
A: Well, technically, if you had two lengths of wire that were both let's say 10cm long, and one was in…
Q: A surveyor measures the distance across a straight river by the following method: Starting directly…
A: We need to calculate the width of the river given the information collected by the surveyor.
Q: In the circuit below, what is the equivalent resistance (in ohms)? 6.00 4.0N 12 V 120 3.00 5.0N 3.0.…
A:
Q: A step up transformer has 79 turns in the primary coil and 425 turns in secondary coil. The primary…
A: Given, Number of turns in the primary coil=79turns Number of coil in the secondary coil=425turns…
Q: A potassium surface is illuminated by a monochromatic laser light with a wavelength of 400 nm.…
A: Given Wavelength of the light is λ=400 nm=400×10-9 m Work function of potassium is φ=2.30…
Q: Problem 5 Justine is standing in an elevator which is accelerating upward at a constant rate of 3.5…
A: Given data: The acceleration of elevator is a=3.5 m/s2. The mass of person is m=65 kg.
Q: You are holding a vibrating tuning fork with frequency 800 Hz as you run toward a stationary wall.…
A: You are holding a vibrating tuning fork with frequency 800 Hz as you run toward a stationary wall.…
Q: A 450-N is in contact with a level plane of fk = 0.10. If the block is acted upon by a horizontal…
A:
Q: A 50 kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2…
A: We know momentum of a body P = mv where m is mass of body V is speed of body
Q: Two forces have the same magnitude F and they act on the same body. Sketch the free-body diagram and…
A: Given, Two forces have the same magnitude F and they act on the same body.
Q: A particle moves along a straight line with acceleration a = and x(0) = 3m, please determine (for…
A: Here we have the equations of motion s=ut + 1/2ft^2 and v= u+ft . Given acceleration is a function…
Q: What is the value of spring
A: Given; What is the value of spring constant ?where, Block of mass m moving with speed v compresses…
Q: 20. Distance = 132 m, time taken = 12 s, acceleration = -1ms-2. Find the final velocity. a) 4m/s b)…
A: Given: distance (s )= 132m time taken (t) = 12 secs acceleration (a) = -1m/s2…
Q: When switch S in Fig. E25.33 is open, the voltmeter V of the battery reads 3.08 V. When the switch…
A: We have to find the resistance (R)
Q: Suppose that liquid mercury and glass both had the same coefficient of volume expansion. Would a…
A: An ordinary mercury-in-glass thermometer works on the following principle. When the thermometer is…
Q: R3=1 0 R3=3 0 R2=2 0 + 9V
A: R1= 1 ohm R2= 2 ohm R3= 3 ohm
Q: b) A 4 kg block is pulled along a rough inclined plane by a force of 71 N as shown in Figure 2.…
A: Write the given values with the suitable variables. m=4 kgF=71 Nμ=0.4 Here, m is the mass, F is the…
Q: work done by an external agent for first one sec is
A: Given; Determine the workdone by an external agent for the first one sec ? Where, Displacement of a…
Q: What is the maximum efficiency of a heat engine that operates between a high thermal reservoir at…
A: The maximum effeciency of the heat engine working between source temperature T1 and drain…
Q: Three point charges are shown as below. Find the net force experienced by q2 due to q1 and q3. 200…
A:
Q: A particle moves along the x-axis from x = 0 to x 5 m under the influence of a force given by F = (7…
A:
Q: Which part of the atom does gamma radiation depend on?
A: Which part of the atom does gamma radiation depend on?
Q: by walking 500 m Northwest and then 400 m N 30 degrees.Determine her r
A: Given:- Adrianne walks to the shop by walking 500 m Northwest The 400 m N 30 degrees. Find:-…
Q: http://www.physicsclassroom.com From The Physies Classroom's Physics Interactive 4. Drag the moon to…
A: Gravitational force between two objects is inversely proportional to the square of the separation…
Q: 1. A planet with a mass of 7.5 x 1025 kg moves around a 9.5 x 1031 kg star in a perfectly circular…
A: Given Data, Mass of the planet (m)=7.5×1025 kg Mass of the star (M)=9.5×1031 kg Radius of the…
Q: What is the magnitude of the electric field at a distance of 1.5 m from a point charge with Q = 3.5…
A: Here point charge , Q = 3.5 C Distance of point from charge(r) = 1.5 m
Q: On an old 45 rpm record, the beginning track is 8 cm from the center and the end track is 5 cm from…
A: Given:- On an old 45 rpm record, The beginning track is 8 cm from the center. The end track is 5…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- How much would you have to raise the temperature of a copper wire (originally at20◦C) to increase its resistance by 15 % ? (i.e. ∆T = ?)(a) 39◦C (b) 49◦C(c) 59◦C(d) 69◦C(e) None of the aboveHow much would you have to raisethe temperature of a copper wire(originally at20◦C) to increase its resistance by 15 % ? (i.e. ∆T= ?)What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat 70.0 g of glass, 200 g of baby formula, and 3.50 ✕ 102 g of aluminum from 20.0°C to 90.0°C in 4.70 min? (Assume the specific heats of glass, baby formula, and aluminum are 840 J/(kg · °C), 4,186 J/(kg · °C), and 900 J/(kg · °C), respectively.)
- A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00∘C, the resistance of the carbon resistor is 217.1 Ω . What is the temperature on a spring day when the resistance is 215.1 Ω ? Take the temperature coefficient of resistivity for carbon to be α = −5.00×10−4 C-1 .The resistance of a copper wire is measured to be 3.80 Ω at 21.6°C. What is the resistance of this wire at 45.0°C? The temperature coefficient for copper is ? = 3.9 ✕ 10−3 °C−1.Suppose at 70°C the resistance of a platinum resistance thermometer is 170 Ω. When placed in aparticular solution, the resistance is 7+100 Ω. What is the temperature of this solution?Temperature Coefficient of resistivity for platinum is 3.93 x 10-3 1/ 0 C.
- The temperature coefficient of platinum is 3.9×10-3/C°. If a platinum wire has a resistance of R at room temperature (25°C), to what temperature (in °F) must it be heated in order to double its resistance to 2R?How much would you have to raise the temperature of a copper wire (originally at 20°C) to increase its resistance by 15 % ? (i.e. ∆T = ?)The resistance of a carbon resistor at 20°C is 18 Ω. What would be the resistance at 120o C? (The coefficient of variation of resistance with temperature for carbon is -5.10-4/oC)
- A platinum resistance thermometer has a resistance R0 = 50 Ω at atemperature To of 20 °C. The temperature coefficient of resistance for theconductor for Pt (α) is 3.92 x 10-3 (°C)-1. The thermometer is immersed in avessel containing molten tin, at which point the resistance increases to 92.8Ω. What is temperature of the liquid tin?What is the resistance of a copper bus bar 9.15 meter long and 7.62 cm by 1.27 cm in cross section? Use 1.78 μΩ-cm specific resistance for copper.A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipatedinside the battery? (c) At what rate (in ºC/min ) will itstemperature increase if its mass is 20.0 kg and it has aspecific heat of 0.300 kcal/kg ⋅ ºC , assuming no heatescapes?