How long must a 50-N force act on a 400-kg cart to raise its speed from 10 m/s to 12 m/s?

Q: 7-3 Two sound waves arriving at the same point Q in space are described at that point by the equatio...

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Q: A sight testing chart measuring 120 cm x 80 cm, the long dimension being the vertical one is to be v...

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Q: A battery of 10 V is connected to a capacitor of capacity 0-1 F. The battery is now removed and this...

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Q: In simple harmonic motion, which of the following physical quantities is independent of the spring c...

A: If we consider an equation of simple harmonic is , x = A sin(wt-phi) , where A is the amplitude of t...

Q: A conductor suspended by two flexible wires as shown in the figure below has a mass per unit length ...

A: Given: The mass per unit length of the wires is 0.0404 kg/m. The tension in the wire is 0 N.

Q: Astone is catapulted at time t-0, with an initial velority of magnitude 19.1 m/s and at an angle of ...

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Q: 3 m 0.3 m 0.3 m E

A: Electric field due to piont charge  E = kq/r2  If two or more than two electric field acts at a poin...

Q: What happened when you put the charged material near the electroscope and why? What happened when yo...

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Q: Figure 3 di A Tyrannosaurus named Rex was having a birthday. He was standing on one end of a cart th...

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Q: The heating spiral of an electric fire is removed from its silicon tube, uncoiled, and measured. It ...

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Q: Why we place the paper box below the time of flight accessory in the second part of the experiment? ...

A: To conduct this experiment without errors the level of the initial position(vertical) and final posi...

Q: 20) Suppose Vishal goes for a long jog.  During his journey:   He travels 25 m east, Then 50 m at ...

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Q: 1. A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate...

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Q: A 1 KW signal is transmitted using a communication channel which provides attenuation at the rate of...

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Q: Discuss the mechanics of ocean energy.

A: In this problem, it is asking about the mechanics of ocean energy.

Q: A Venturi tube narrows down from the inlet section to the throat. The inlet is 7 ft^2 while the thro...

A: GivenInlet Area ,A1=7 ft2Throat area ,A2=13A1Change in pressure ,∆P=0.85 atm

Q: Find the kinetic energy of a ball of 320 g mass, moving at a velocity of 50 cm /s.

A: Given data :                        Mass   =   m                       Velocity   =  V          To f...

Q: 3.50 A 10.00 R1 2.00 A

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Q: A car is traveling at the speed of 72.0kph. Unfortunately, the car's driver sees a man standing 10.0...

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Q: 21.71 Three identical point charges q are placed at each of thrae comers of a square of side L Find ...

A: (a) Draw the free-body diagram.

Q: A 20 µF capacitor is charged to 120 V and then disconnected from the power supply. If a second uncha...

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Q: Alexis moves with a constant speed of 1.40 m/s and passes an apartment building in a moment. Lourdes...

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Q: nent 7 Heat transfer, rev 1, 2022.xlsx (1.58 MB) Page 2. Styrofoam, used for insulation, has a thick...

A: Heat current is given by  heat current = dQdt=KA∆TL K = thermal conductivity of material , L = thick...

Q: Phil Younghusband is a football player of azkals, he kicks off from the 40 yard line. How far will t...

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Q: The planet Jupiter has an acceleration due to gravity of 25 m/s2. What is the period of a simple pen...

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Q: A man with a mass of 71.6 kg stands on one foot. His femur has a cross-sectional area of 8.00 cm2 an...

A: Aim: To find the fractional length change of the femur when the person moves standing on two feet to...

Q: 3. A triangular array of resistors is shown in the figure on the right. What current will this array...

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Q: The magnitude of average velocity is always less than or equal to the average speed. Explain why?

A: Let us assume point A and B and with a straight line joining both of them separated by d distance.  

Q: When an object is accelerating in a fluid due to an applied force, the velocity where the magnitude ...

A: Introduction: The terminal velocity is the maximum attainable velocity when it acceleration through ...

Q: 7. A young girl (m = 30 kg) rides a skateboard (m = 3.2 kg) at a speed of 4.2 m/s. (a) How much work...

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Q: A boar charges directly toward a hunter with a constant velocity of 18 m/s. At the instant the boar ...

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Q: (a) A stuntman with a mass of 81.5 kg swings across a pool of water from a rope that is 11.0 m. At t...

A: Given : Mass of stuntman = 81.5 kg Length of rope =11.0 m Stuntman's speed = 7.90 m/s Breaking Stren...

Q: The figure shows an overhead viewof a 0.025 kg lemon half and twa of the three horizontal forces tha...

A: Using notation suitable to a vector-capable calculator, the F'net = 0 condition becomes F₁+F2 + F3 =...

Q: 5A child having a mass of 30 ng Sits 14.0m flom the center of a mery.90.coun that 15 fotating with a...

A: 5 Given  Mass of chld m=30kg Distance r=4m Time period T=10s  

Q: Power watt? A 3.02 resistor is connected to a non-ideal source with internal resistancer =1.00 and E...

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Q: The average annual electricity consumption of a United States citizen was 10715 kWh in 2020, which c...

A: Given  Avg annual electricity consumption E =10715 kWh = 10715 ×3.6×1=3.8574 ×1010 J corresponds to ...

Q: 9) Remove the pillars and manipulate the placement of the 15-kg mass on the right arm QONLY.Show the...

A: Given : Mass1=20 kg at 1.25 m left from the axis of rotation Mass2=10 kg at 1.75 m right from the ax...

Q: A point charge of −5uC is located at x=4 m,y=−2 m. A second point charge of 12uC is located at x=1 m...

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Q: Activity 7: Finding Current Work with the given sample problem below. (1) Construct an illustration ...

A: Image-1

Q: A flat rectangle is placed in a uniform electric field with a magnitude of 7.8 x 103 N/C. The electr...

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Q: III. Identification: Complete the organizational chart by writing the correct information on each bo...

A: There are three types of plate boundaries: Convergent  Boundary Divergent Boundary Transform...

Q: A ball play throws a baseball at angle of 30° to the horizontal with a speed of a 30 m/s. A. How far...

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Q: A spring with a force constant K obeys Hook's Law. It requires 4 J of work to stretch it through 10 ...

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Q: A particle is moving with a velocity function v(t : v(t) = [(5.4){ + (8.0)f + (10t²)k]m/s What is th...

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Q: 1. Young's double slit experiment is performed with visible light of 500 nm. The light projects thro...

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Q: Two carts, labeled 1 and 2, are headed toward each other along a level track. Both carts roll withou...

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Q: What is Marie Curie contribution to the atomic theory?

A: Marie Curie along with her husband Pierre Curie discovered and isolated polonium and radium which em...

Q: Which process in the water cycle requires energy from the sun explain how you know

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Q: 2. A 1.5-kg box is released from rest on a frictionless surface that is sloped at 0 = 35° above the ...

A: GivenMass of box ,m=1.5 kgAngle ,θ=35°Sliding plane is 1 m longμk=0.12

Q: Ash saw a flying charizard above him and decided to throw a pokeball vertically upward from the roof...

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