The work required to accelerate an object on a frictionless surface from speed v to 2v is a. You cannot know without knowledge of acceleration. b. Four times the work required to accelerate the object from 2v to 3v. c. Three times the work required to accelerate the object from v=0 to v. d. Equal to the work required to accelerate the object from v=0 to v. e. Twice the work required to accelerate the object from v=0 to v.

Q: The calorimeter is made of 0.15 kg of aluminum and contains 0.20 kg of water. Initially, the water…

A: Given mAl=0.15 Kg (mass of aluminum) mw=0.2 Kg (mass of water) Ti=18 oC (initial temperature of…

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A: Given:- The initial velocity of the electron is as vi= 10j^+14.5k^ km/s vi= 10×103j^+14.5×103k^ m/s…

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A: It is given that, the initial volume of the diatomic gas is, V1=40 L=0.04 m3 number of molecules is,…

Q: What convert 77° f into kelvins conversion formulas c°= ( F-32°)÷1.8 F° =1.8×C°+32° K = C°+273

A: Given data:  Temperature in Fahrenheit scale TF = 77 °F Required: Temperature in kelvin scale (T)

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Q: 2. What was the magnitude of the gravitational force acting on the ph you released it? (mphone = 188…

A: Givenmphone=188 g=0.188 kgmE=5.98×1024 kgrE=6380 kmG=6.67×10-11 Nm2/kg2

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Q: Use the values from PRACTICE IT to help you work this exercise. Suppose the same two vehicles are…

A: Introduction: Law of conservation of momentum between object 1 & 2 in an isolated system, where…

Q: The mass of particle 1 is 11kg. The initial velocity for particle 1 is  (-104m/s)i + (216m/s)j. F21…

A: Given informationF21=Fxe-tTi+Fysin(2πtT)j                  (1)where Fx=16.8 NFy=-106 NT=100sprocess…

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Q: How are the absolute value of an imaginary number, the magnitude of a force, and the distance…

A: Solution: We have these are positive real numbers representing a size, which can only be positive.…

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Q: What is the frequency observed with a wavelengh of (4.0x10^-7) m? Answer with 2 significant figures…

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Q: 5 Consider an annular disk rolling down an inclined plane. The annular disk has mass 154 [g], inner…

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Q: A ship is steaming 50° north of east at a speed of 10 km h-¹. The thermometer in the ship was able…

A: The formula to calculate the rate of temperature change is ∂T∂t=DTDt-v⇀.∇T∂T∂t=DTDt-v⇀.∇T.cosθ…

Q: In a football game, a receiver is standing still, having just caught a pass. Before he can move, a…

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Q: A horizontal force of 95.0 N is applied to a 60.0 kg box on a rough, level surface. If the crate is…

A: Given data:  Horizontal force (F) = 95.0 N Mass (m) = 60.0 kg Acceleration (a) = 1.20 m/s2 Required:…

Q: What is the ideal speed to take a 103-m-radius curve banked at a 18° angle? Assume the car is moving…

A: Given:-  The banked angle of the car is  given as  θ = 18° The radius of the curve path is r = 103 m…

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A: intensity of sound in a musical concert = 10-5 Wcm2intensity of sound in vacuum = 10-8 Wcm2intensity…

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Q: For the situation in the figure below, use momentum conservation to determine (a) the magnitu…

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Q: 5. Calculate the power output in watts and horsepower of an 80 kg man that climbs a flight of stairs…

A: Given data:  Mass (m) = 80 kg Height (h) = 6.8 m Time (t) = 40 s Required:  Power output in watts…

Q: A round duct with diameters 50 cm carries air at a speed of 4 m/s. When the duct constricts to a 20…

A: Given data: The diameter d1=50 cm=0.5 m The speed V1=4 m/s The diameter d2=20 cm=0.2 m

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Q: 1. A particle of mass 2.5 kg moves under the influence of a force: F(x)=(-5x²+7x) N If its speed at…

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Q: a copper cylindrical rod of radius 7 cm and length 47 cm is melted and recast into a wire of…

A: Given, a copper cylindrical rod of radius 7 cm and length 47 cm is melted and recast into a wire of…

Q: A granite ball of radius 1.92 m and emissivity 0.450 is heated to 118°C. HINT (a) Convert the given…

A: Given data: The given radius of a granite ball, r=1.92 m The given temperature, T=118° C The given…

Q: QUESTION 4 A system of blocks is shown in the figure. Assume the pulley is frictionless. Which of…

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Q: A restaurant manager pushes a box of melons horizontally with a force of magnitude 150 N. The box…

A: Given data:  Applied force (F) = 150 N, horizontally Box moves with constant acceleration in the…

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Q: y X Consider a Cart rolling down hill with no friction. Only include the cart's energy and momentum…

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Q: 5. Calculate the acceleration due to gravity on the surface of Jupiter? (mj = 1.90×10²7 kg, rj =…

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Q: A model rocket is constructed with a motor that can provide a total impulse of 27.0 N-s. The mass of…

A: Given data:  Total impulse (I) = 27.0 N.s Mass (m) = 0.162 kg Initial velocity (u) = 0 m/s Air…

Q: Can somone please exolain this answer again? Still confused.

A: Given:-  A car with two passengers and fuel weighs 1000 kg. It has wings with an area of 16 m^2 that…

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Q: 44. A 1200-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into…

A: Given  Information:- Mass of the car is mc=1200 kg Mass of the truck is mt=9000 kg Initial velocity…

Q: 1. Vadim bought his wife a "gold" bracelet from a guy on the street for $100. If he drops it in a…

A: Given, The increase in the volume of bracelet, V=400 cm3 The mass of the bracelet, m=0.5 Kg

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.