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Q: A 7.5 kg backpack is sliding across the floor.  The coefficient of friction between the backpack and...

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Q: ) A 300-g mass is hung from acoiled spring and it stretches 20 cm.it is then streched at additional ...

A: Given: The mass of the object is 300 g. The extension in the spring due to weight is 20 cm. The ampl...

Q: Explain the working of Pitot tube

A: A Pitot tube is a device that is used to measure the fluid flow velocity of incompressible fluids. T...

Q: e charge density P and field at a point outside e sphere. (C) Find the

A: Explanation: ρ is the uniform volume charge density of solid sphere, Q is total positive charge carr...

Q: Q1) The device consists of a spring-mounted chair in which the astronaut sits. The spring has a spri...

A: Given- Spring constant k=606 N/m Mass of chair m=12 kg Time period T=2.41 s

Q: Mina is on Earth and is looking at the sun. Which layer of the sun is she able to see? *

A: Layers of sun are : Photosphere Corona Chromosphere Radiative zone

Q: The answer must be 236 Hz. Thank you in advance.

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Q: Which of the following best describes the reason that a car can stop more quickly on dry pavement th...

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Q: 3)The 200-kg crate a is suspended using the ropes AB and AC. Each rope can withstand a maximum force...

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Q: el1: Finding the Charge on an Oil Drop In a Millikan oil-drop experiment, a drop has been found to w...

A: Write down the given values using suitable variables. Here W signifies oil-drop weight, r signifies...

Q: What two substances are likely to be involved if a 2.5 kg object made of one of these surfaces is on...

A: Friction is the resistance to motion of one object moving relative to the other. The sliding frictio...

Q: Given the vectors A = (8i + 4j - 2k) N B = (2j + 6k) m C = (3i - 2j + 4k) m Calculate the following:...

A: Given: mass m = 600 kg. Velocity v = 100 ms To determine: Momentum P Formula used: P = mv Momentum i...

Q: Help

A: The kinetic energy of an object is K=12mv2K α v2

Q: A rope is wound around a shaft 10 cm in diameter. If a pull of 500 N is exerted on the rope, what to...

A: Given data: Diameter of shaft is, d=10 cm=0.1 m. Magnitude of pulling force is, F=500 N.

Q: Help

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Q: The Navier-Stokes equation is the fundamental equation of fluid dynamics. In one of its many forms (...

A: Given:-            The Navier stokes equation for in compressible viscous flow is given by:         ...

Q: A cord passing over a pulley connects two masses, as shown, where m, = 4.30 kg and m, = 6.00 kg. The...

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Q: Q1) The device consists of a spring-mounted chair in which the astronaut sits. The spring has a spri...

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Q: Adam the lightning bug has charge −4. Tammy the lightning bug has a charge +3. Which bug is more att...

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Q: Q3): In figure below, the coefficient of friction between A and B is 0.3 and between B and the horiz...

A: GIVEN : Block A weight = 1500 lb Block B weight = 2500 lb; The coefficient of friction between A and...

Q: If objects in motion tend to stay in motion, why don't moving objects keep moving forever?

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Q: Which of the follo pavement?

A: friction is a force between two surfaces that are sliding, or trying to slide, across each other. Fo...

Q: Q1) The device consists of a spring-mounted chair in which the astronaut sits. The spring has a spri...

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Q: 50 kN VE 40 kN If e = 60° and F = 20 kN, determine the %3! magnitude of the resultant force and its ...

A: resultant force can be calculated by finding resultant components along X and Y axes separately. res...

Q: 1- a worker with spikes on his shoes pulls with a constant horizontal force of magnitude 20 N on a b...

A: Given: The mass of the box is 40 kg. The force on the box is 20 N. Introduction: The force on a body...

Q: Help

A: Required : Points of maximum, least, increasing and decreasing kinetic energy.

Q: Question 2 A person pushes a shopping cart with a force of 15 N and the cart starts moving away from...

A: A man is applying a force of 15N on cart. Due to this force cart start moving.

Q: 1. An eraser is tied to a string and held by a physics teacher. The eraser is whirled in a circle at...

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

Q: At the Beijing Olympics a Chinese female weightlifter set a new world record. She lifted 117 kg, hol...

A: The work done is the change in the potential energy The distance change is h'=1.65 m-0.15 mh'=1.50 m

Q: Q2) The Dropping had been happened for 0.1 kg apple 1 m. what speed dose it hit the ground with? Are...

A: Given: The mass of the apple is 0.1 kg. The height is 1 m.

Q: (24) A tank contains nitrogen N2 at an absolute pressure of 2.5 atm. What will be the pressure of an...

A: Given: Let mass of nitrogen present in tank = mn gram Absolute pressure, P1 = 2.5 atm

Q: A person holds a barometer at the bottom of the building; The barometer reading was 74 cm Hg, how w...

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Q: The line of action of force F1 = 300 N is passing through point A(+2,+3,+1) towards B(+5,+5,+4), whi...

A: Hence it is given that the line of action of force F1 and F2. Here it also given that the position v...

Q: If we have an image that is smaller and upside down compared to the original object, what is the typ...

A: If the size of the image is smaller than the original size and it is upside down then the lens will ...

Q: In a circuit with just a battery and a resistor, which of the graphs shown below could represent the...

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Q: Answer quickly

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Q: How do I solve this question

A: Given: There are 2 forces acting as shown in figure,

Q: What is Hall Effect?

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Q: The answer in no.14 must be letter c. 0.75 g/cm3. The answer in no. 15 must be letter c.19.3. Thank ...

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Q: State Ampere’s law. Derive a relation for a magnetic field inside a solenoid and Torrid. ? (LONG QUE...

A: Ampere's law∮B→.dl→=μ0iencLine integral of magnetic field around a closed amperian loop is equal to ...

Q: If 580-nm light falls on a slit 0.05 mm wide, what is the full angular width of the central diffract...

A: The slit experiment mainly does diffraction of light which gives rise to a maximum point and a minim...

Q: If possible give the final answer with 4 decimal places

A: Given: Mass of block m=10 kg Dimension of block 12cm×10cm×10cm Height b/w top of the block & wat...

Q: How many electrons flow through a battery that delivers a current of 4.4 A in 8.1 s

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Q: A 50 -g block as in figure below is connected to a spring on a rough inclined plane that makes an an...

A: Let us calculate the acceleration of the block. ∑Fx=maFs-f-mgsinθ=maFs-μkmgcosθ-mgsinθ=maa=Fs-μkmgco...

Q: A box of mass 3 kg is moving to the right at 5 m/s and has an acceleration to the left of -2 m/s2. I...

A: Hi, as this problem contains multiple sub-parts, hence the first three sub-parts will be solved for ...

Q: Which of the following best describes the reason that a car can stop more quickly on dry pavement th...

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Q: Help

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Q: 2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel r...

A: M = 1550 kg  V = 900 km/hr  = (900)(1000/3600) => V = 250 m/s    

Q: Date: + e -Co S근 2.

A: i hope you are familiar with the euler's formuaeiz=cosz +i sinz......1if we replace i with -ie-iz=co...

Q: A disk of radius R and mass M has initial angular velocity ωi. It is flat on a horizontal surface an...

A: Given: Radius of the disk is R. Mass of the disc is M. Initial angular velocity is ωi and final angu...