270 N 50°7 B 400 N 30 D 30

Q: Problem 9: A gymnast with a mass of 46-kg jumps on a trampoline. What force does a trampoline have…

A: Mass (m) = 46 kg  Acceleration (a) = 7.5 m/s2 Gravity (g) = 9.80 m/s2  ........( constant)

Q: Three identical resistors are connected in parallel to a battery. If the current of 12 A flows from…

A:

Q: In kinematics, the velocity function is all of the following except  A. Function of time  B.…

A: Option D- None of the above

Q: what is the acceleration of the system?

A: Given; Two masses M1 and M2 are attached to the ends of  a spring whichpasses over the pulley…

Q: In a given fluid, positive ions, each with 2 excess protons, move to the right at a steady rate of…

A:

Q: T,F 21 Correct the following sentences 1. Frequency is directly related to wavelength. 2. Ultrasound…

A: Frequency is not directly related to wavelength .Frequency depends on source only and wavelength…

Q: In a thermodynamic process, if 135 kJ amount of heat is required to increase 5.1 kg of metal from…

A: Q= 135 kJ = 135*1000 J Initial temperature = Ti= 18 c  Final temperature = Tf= 44 c  Trmperature…

Q: Show solution and illustration Light rays travel from a vacuum into a glass whose refractive index…

A: Snell's law: For a given color of light and a particular set of media, the ration of the angle of…

Q: -.what is hexa with example.

A: What is hexa with example

Q: s acceleration down the plane is

A: Given; Co-efficient of static and kinetic friction are μ1 and μ2 respectively.Assuming…

Q: (d) Determine the values and tolerances of resistors having the following colour coding; i)…

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Q: Q4: A small sphere, rolling with an initial velocity of 9 m/s, moving up a plane inclined 30' with…

A:

Q: If the momentum of a flying brick is 40 kg x m/s and it's mass is 8 kg. Calculate its velocity ?

A: Given data :                            Mass     =     m                     Momentum   =    P…

Q: A block rests on an inclined plane. The force of friction acting on the block is (1/n) times. The…

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Q: The current supplied to a lamp with a 100-W light bulb is 0.87 amps. The lamp is wired using a…

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Q: Problem 1: Travelling with an initial speed of 70 km/hr, a car accelerates at 6000km/hr² along a…

A: initial velocity (u) = 70 km/hr final velocity (v) = 120 km/hr acceleration = 6000 km/hr2

Q: An electric iron of resistance 20 ohms takes a current of 4 A. Find the heat developed in 26 seconds

A: Given data :                         Resistance     =     R                           Current     =…

Q: The initial acceleration of the block

A: Given; Block of metal weighning; m= 2 kgIt is struck by a jet releasing water ata rate of 1…

Q: a silk thread S, which es an angle 0 with a e charged conducting -P, as shown in the re. The surface…

A: solution of above problem is below:

Q: Part A A force of 570N keeps a certain ideal spring stretched a distance of 0.800 m. What is the…

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Q: One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that…

A: Frequency of vibration of the tuning fork f=120 Hz, mass supported by the pulley m=1.5 kg, mass…

Q: Tendons are strong elastic fibers that attach muscles to bones. To a reasonable approximation, they…

A:

Q: relationship between quantities. Show the mathematical way of proving them. Assume that all other…

A: Given:-  Identify the relationship between quantities. Show the mathematical way of proving them.…

Q: Two blocks of masses 2 kg and 1 kg are in contact with each other on a frictionless table. When a…

A:

Q: how using a twisted pair of wires (instead of a pair of straight wires) to connect a measurement…

A: In this question we have to explain how using twisted pair of wires reduces effect of interference…

Q: What's More Activity 3 A. FIN in the Table Study the different activities which can be easily…

A: Answer:-  (1) Hammering a nail :- A hammer is a tool that utilizes mechanical energy to do work. The…

Q: Spectral analysis of the 6 second record in the EEG above shows two sine waves of equal (20…

A: Given diagram: \

Q: One issue encountered during the exploration of Mars has been the accumulation of static charge on…

A:

Q: 1. The energy of an electron in the valence band of a semiconductor is described by E = - Ak? where…

A:

Q: ic gas confined in a cylinder is subjected to a cycle. The gas is initially at 1 atm (101325 Pa) and…

A: Given:-  5.0 L of diatomic gas confined in a cylinder is subjected to a cycle P = 101325 Pa  and T =…

Q: T,F 21 Correct the following sentences 1. Frequency is directly related to wavelength. 2. Ultrasound…

A:

Q: 10. Convert the following pictorials to schematic circuit diagrams: a. b. d.

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Q: A rickshaw puller pulls the rickshaw by applying a force of 120 N. If the rickaw moves with constant…

A: Given data-              Force = 120 N             velocity of rickshaw (V) = 144 Km/h   or    40…

Q: Light strikes a metal surface, causing photoelectric emission. The stopping potential for the…

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Q: An airplane takes off at sea level and climbs to a height of 425 m. Estimate the net outward force…

A: The change in pressure is calculated as follows ∆P =ρgh ∆P =(1.3kg/m3)(9.8m/s2)(425m)       ∆P…

Q: en 2 atoms. How much amper(A) is needed to obtain 5.8x10-19 joules of electro volts(eV)? HW-8: Find…

A: Given:-  The resistance is R = 0.8 ohm between the two atoms.  The  Energy needed to obtain is…

Q: for part a i got 4.78 , Problem 4: A block of massm=D15kg is attached to a spring with spring…

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Q: Calculate the wavelength of the frequencies below: a) 3KHz (human hearing) b) 100MHz (FM radio)…

A: wavelength = c/f where c = s8peed of light     and f = frequency   a) for human hearing,…

Q: Generally, more massive nuclides tend to be more unstable to alpha decay. For example, the most…

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Q: B. A light passes through two slits spaced 0.04 mm apart to illuminate an observation screen which…

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Q: A car is moving on a straight road 12 m/s. It is acceleration at 16 m/s? . What will be it's…

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Q: Explain the validity and suitability of the electrical safety components Emergency Stop Switches.…

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Q: A 2.0-cm object is 2.0 cm in front of a two-lens system with focal lengths +4.0 cm and –4.0 cm,…

A: We have an object of height ho=2 cm at a distance u=2 cm from a lens of focal length f1=4 cm which…

Q: 3. Complete the table on the Summary of Images Formed by a Convex Mirror Image Distance Object…

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Q: Q2: A car is traveling at a speed of 55 km/h. Express this speed in S.I. units.

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Q: You have a string of identical piano strings of length (0.75m), each of which is tuned to 440HZ. The…

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Q: Find Density of object of mass 250.5 kg which accupies space of 0-8 m3

A: Given data :                Volume     =     V                 Mass     =    m         To find :…

Q: diver runs horizontally off the end of a diving tower 3.5m above the surface of the water with an…

A: diver runs horizontally off the end of a diving tower 3.5m above the surface of the water with an…

Q: 2. A charge +Q moves with velocity v in a uniform magnetic field B. i = (2.50m/s) Q= +1.00 coulombs…

A: Given: The charge on the particle is 1 C. The velocity and magnetic field of the object are.  v=2.5…

Q: erect object is 52 cm from a concave mirror of radius 13 cm. What is the lateral magnification of…

A: Dear student The mirror formula is defined by: 1v+1u=1f And magnification is expressed as: m =-vu…

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.