Q: A 2.0-cmcm-tall object is located 7.0 cmcm in front of a converging lens with a focal length of 12.0…
A: Given data- Height of the object ho=2.0 cm Distance of the object do=7.0 cm Focal length f=12.0 cm
Q: 26) A 45.0-kg sample of ice is at 0.00° C. How much heat is needed to melt it? For water LF =…
A: Concept : Heat required to melt m mass of ice into water is H = m × Lv Where Lv is the latent heat…
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A: in this question we draw free body diagram of point A and point D . then we get equation x and y…
Q: Q18) A sample of bone tissue with a density of (1.8 g/cm3). Calculate the speed of ultrasound that…
A: Given : Density = 1.8 g/cm3 =1.8×10-310-2×3= 1800 kg/m3 Acoustic Impedance = 7.38*106 kg.m-2s-1
Q: 44) What is the change in entropy of the ice when a 0.050-kg ice cube at 0°C melts? The latent heat…
A: Given data- Mass of ice m=0.050 kg Temperature T=0°C =273 K latent heat of fusion for water is L= 80…
Q: 1/A copper calorimeter (S=0.2cal/g °C) of mass 70 g contains (400 g) of water and (100 g) of ice in…
A: In the given question, Specific heat of copper calorimeter (Sc) = 0.21cal/g0C Mass of copper…
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A: Draw the free-body diagram of the foot of the horse. Apply moment equilibrium about CG.…
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Q: π →μ +V μ μ
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A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…
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A: A) Given Data : The angle of the launch of the golf ball is given as θA=450 The initial speed of the…
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Q: 5. A 210-N mass is suspended from a horizontal beam by two cables that make angles of 29° and 53⁰…
A:
Q: 22) A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is…
A: solution:- given data , mass of block m = 4kg, initial temperature of block, Ti = 10°C, when we…
Q: What is the magnitude of the electric field at a point 4000 millimeters from a point charge q=800…
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Q: gymnast is attempting to perform splits As she does this, you can assume that the force between her…
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Q: 21) How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C?…
A: Given: Mass of lead m=225 g, Initial temperature Ti=15°C, Final temperature Tf=25°C, Specific heat…
Q: A compound microscope consists of an objective lens with a focal length of (10 mm) and an eyepiece…
A: focal length of objective lens = f0= 10 mm = 1 cm focal length of eye piece = fe= 2 cm length = L =…
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A: When acceleration is constant, all the equations of motion are applicable.
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A: Friction force and free body diagram
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A: Given angle=32.5° Initial speed (u)=60 m/s Required Range(horizontal distance traveled) of…
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A: Given:- At the instant shown the length of the boom, AB is being decreased at the constant rate…
Q: QUESTION 4 There are two horizontal forces on the 1.7 kg box in the overhead view of the figure but…
A: Given data: Mass (m) = 1.7 kg F1 = 20 N Acceleration (a) = -13 m/s2 Required: Second force (F2)
Q: THE CUTTING WAVELENGTH IN A PERPENDICULAR METAL WAVEGUIDE IS THE MAGNETIC FIELD THAT FILLS THE AIR…
A: Write the expression of cutting wavelength. λc=2am Here, for dominate mode: m=1
Q: 27) A person tries to heat up her bath water by adding 5.0 L of water at 80°C to 60 L of water at…
A: The given problem involves the concept of calorimetry. The phenomenon as stated in the problem…
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Q: distance d. Assume that the wires are infinitely long and they are parallel with each other. -Show…
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Q: You are kicking a ball at an angle from the ground of 35 degrees at 10m/S. How long does the ball…
A: in the above example the motion of ball is in projectile motion Given initial speed of projectile…
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A: In this question we discuss about what will happen when two waves meet .
Q: Q14: A constant force of (81) N acts on a 4.0-kg object as it moves from the origin to the -c) 72 J…
A: (14) Given: Force F→=8 i^N, Displacement ds→=6i^-8j^m-0i^+0j^m=6i^-8j^m. Required: Work done (W).…
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A: in this we use integration of given equation.
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Q: A 67.1 kg runner has a speed of 4.30m / s at one instant during a long-distance event. what is the…
A: Given data: Mass (m) = 67.1 kg Initial velocity (vi) = 4.30 m/s Final velocity (Vf) = 8.60 m/s…
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Q: Leila is in a bicycle road race. In the first leg, she rides 12km from Hague Park to Bluffer’s Park…
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Q: c) 39.2 d) 19.4 Q5: The area under a velocity-time graph represents: a) speed b) change in…
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A: GIVEN; Define wedge and its principle on which it works ?
Q: A = 41-6j and B = 21 +10 then the vector C=2Ã-B has a magnitude of: a) 7.2 b) 42 c) 23 d) 64 02: A…
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Q: 11: Block A, with a mass 30 kg, rests on the incline. The oefficient of static friction between the…
A: Given: The mass of block A is 30 kg. The angle of the inclination is 35o. The coefficient of static…
Q: 22) A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is…
A: Write the given values with the suitable variables. m=4 kgT1=10 °C=283 KQ=160 kJ=160×103 JC=910…
Q: QUESTION 21 A block of mass M is suspended at rest by two strings attached to walls, as shown in the…
A: Q.11 Kyle's true weight (wo) = 600 N apparent weight (wap) = 500 N Weight is given as :- w = m g…
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A: Given that: m=76.5 kgg=9.8 m/s2h=405 mt=46 min=2760 sec W=?
Q: An electroscope is positively charged. Because of this, its leaves are separated. When an object is…
A: Given, An electroscope is positively charged. Because of this, its leaves are separated. When an…
Q: 24) It is necessary to determine the specific heat of an unknown object. The mass of the object is…
A: Given : m = 201 g = 0.201 kg Q = 15 J ∆T = 10°C
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Q: Hafthor Bjornsson, a strongman, broke the world record deadlift by lifting 501kg, with a total range…
A: Given mass(m)=501kg total range = 80cm =0.8m time =4sec.
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- An infrared heater for a sauna has a surface area of 0.050 m2 and an emissivity of 0.84. What temperature must it run at if the required power is 360 W? Neglect the temperature of the environment.Speculate as to why nuclear power plants are less efficient than fossil-fuel plants based on temperature arguments.Does adding heat to a system always increase its internal energy?
- Discuss the practical advantages and disadvantages of heat pumps and electric heating.If the refrigerator door is left what happens to the temperature of the kitchen?Check Your Understanding When 1.00 g of ammonia boils at atmospheric pressure and 330 . its volume changes from 1.47 to 1130 cm3. Its heat of vaporization at this pressure is 1.37106 J/kg. What is the change in the internal energy of the ammonia when it vaporizes?
- Noting the large stresses that can be caused by thermal expansion, an amateur weapon inventor decides to use it to make a new kind of gun. He plans to jam a bullet against an aluminum rod inside a closed invar tube. When he heats the tube, the rod will expand more than the tube and a very strong force will build up. Then, by a method yet to be determined, he will open the tube in a split second and let the force of the rod launch the bullet at very high speed. What is he overlooking?what happens to internal energy of sytem when mechanical work is done on it? what happens to its temperature?The highest possible efficiency of an engine operating between temperatures of 11 oC and 215 K is
