Calculate the intensity of light along the light path from point a to point b to point c,  if the distance ab = 5 m and bc = 3 m, and the light source is 60 Watt?

Q: A = 1i - 0.5j, B = 1i +1j, calcuate the dot product of A and B. O A. 0.5 OB. 1.0 O C. 1.5 O D. -0.5

A: Given data: Two vectors A and B A = 1i - 0.5j B = 1i + 1j Required: The dot product of vector A and…

Q: Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be…

A: The differences in the two arrangements are shown below   In first case the slab has a total length…

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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Q: Part A How much energy is stored in a 2.60-cm-diameter, 12.0-cm-long solenoid that has 150 turns of…

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Q: 8. ne the horizontal velocity v. of a tennis ball at location A so that it just clears the net at…

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Q: The 30-cmcm-long left coronary artery is 4.6 mmmm in diameter. Blood pressure drops by 3.0 mmmm of…

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Q: he free-fall acceleration on the surface of Mercury is about three eighths that on the surface of…

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Q: Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is…

A: The given data we have: Temperature of the water boiling in the pots: 1000C. Rate of heat conduction…

Q: object with a height of 33 cm is placed 1.9 m in front of a concave mirror with a focal length of…

A: Given Object distance u = -1.9 m Focal length f = -0.85 m Size of object h1 = 33 cm

Q: A toy car (5.0 kg) is tied to a toy tank (10.0 kg) with a piece of string. A child pulls on tank, as…

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Q: 3. A skateboarder moves uniformly at 3.5 m/s horizontally when he arrives at the top of a hill…

A: Given, The initial speed of the skateboarder, u = 3.5 ms angle, θ = 24° coefficient of friction, μ =…

Q: A swimming pool has dimensions 36.0 m ✕ 7.0 m and a flat bottom. The pool is filled to a depth of…

A: Given, The dimension of the swimming pool 36×7, The depth of the pool, h=1.90 m

Q: graphs. 1 position 2 position 3 position

A: slope of position time graph represents velocity.

Q: What is the energy of light with a wavelength of (2.50x10^2) nm? Answer to 3 significant figures in…

A: Given data:  Wavelength (λ) = 2.50×102 nm Required: The energy of the light (E)

Q: An advertisement claims that a particular automobile can “stop on a dime.” What net force would be…

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Q: A sled of mass m is being pulled horizontally by a constant upward force of magnitude F that makes…

A: We know, Power = Net force acting on a body×Velocity of the body A sled of mass m is being pulled…

Q: If the net work done on a particle is zero, which of the following statements must be true? a. The…

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Q: 5. Find u₁ and u₂ displacement. U₁ K₁ k₂ F U2

A: Notice the spring combination on top. Note that the spring k1 has a extension u1 and the spring k2…

Q: A particle is moving in simple harmonic motion with an amplitude of 4.2 cm and a maximum velocity of…

A: Given:-  The ampiltude A = 4.2 cm  The maximum velocity v = 14.0 cm/s  The initial phase  is 0…

Q: The wheels of a wagon can be approximated as the combination of a thin outer hoop of radius rh =…

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Q: An underground gasoline tank can hold 1.19 x 10³ gallons of gasoline at 52.0°F. If the tank is being…

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Q: As shown in Fig. 2-5, a projectile is fired horizontally with a speed of 30 m/s from the top of a…

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Q: An electron has an initial velocity of (10.0j + 14.5k) km/s and a constant acceleration of…

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

Q: The figure shows a 4.20-kg, 1.80-m-long rod hinged to a vertical wall and supported by a thin wire.…

A: solution: Given that, the mass of the rod, M = 4.20 kg. The length of the rod, L = 1.80 m. The wire…

Q: At its lowest setting a centrifuge rotates with an angular speed of ω1 = 250 rad/s. When it is…

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Q: A 500 g block is released from rest after a spring of constant k=800 N/m has been compressed 200 mm.…

A: Given force constant k = 800 N/m  compression in spring x = 200 mm  =0.2 m  mass of block m =500 g =…

Q: You have a 12.25 kg brick and a 12.75 kg brick, one on either side of our balance beam. If the 12.25…

A: Given data:  Masses of bricks m1 = 12.25 kg and m2 = 12.75 kg Mass 12.25 kg placed at r1 = 0.10 m…

Q: Write the range of frequencies of electromagnetic waves which propagate through sky wave mode.

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Q: A 0.500-kg of cold water at  1°C  is placed in 0.400 kg of  35.0°C  water in a very well-insulated…

A: Given data: The given mass,m1=0.500 kg The given mass, m2=0.400 kg The given temperature,T1=1°C The…

Q: What is the wavelength of light waves if their frequency is 4.0X10¹4 Hz? A. 750 nm B. 600 nm C. 400…

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Q: What is the frequency of a wave with an energy of (1.25x10^-19) J? Answer to 3 significant figures…

A: The given value in the question is that: Energy (E)=1.25×10-19 The formula for the energy of a wave…

Q: What is the wavelength (in nm) of a laser with an energy of (5.59x10^-19) J? Answer to 3 significant…

A: Given data: The energy, E=5.59×10-19 J

Q: Write the range of frequencies of electromagnetic waves which propagate through sky wave mode.

A: The range of frequencies of electromagnetic waves which propagate through sky wave mode.

Q: The intensity level of sound is measured in decibels (dB). A normal conversation measures 60 dB. To…

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

Q: In a nuclear experiment a proton with kinetic energy 8.5 MeV moves in a circular path in a uniform…

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Q: A uniform thin rod of mass 2.0 kg and length 0.75 m is pushed from rest across a level frozen pond…

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Q: An object that is 4.0 cm tall is placed 15 cm in front of a concave mirror of focal length 20 cm. 1)…

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

Q: An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 467-g sample of…

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Q: A 30 degrees celcius, 20 g silver ring is placed on a 20 degrees celcius, 30 g glass ring holder. If…

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Q: Since the floor is rough, it exerts both a normal force N, and a frictional forcef, on the ladder.…

A: For equilibrium net force as well as net torque acting on the system must be zero and horizontal as…

Q: For a classroom demonstration, a professor built an RL circuit similar to the one shown in the…

A: Introduction: RL circuit is a circuit which consists of Inductors and Resistors combinations and…

Q: In the figure below, an iron bar sitting on two parallel copper rails, connected to each other by a…

A: Given Fapp = 1.05 N Resistance R = 8 Ohm Speed v = 1.65 m/s Magnetic field B = 3.2 T

Q: There are three moving charges next to the observation point P. The first charge has a charge of…

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Q: Did you notice that for some sounds, the tones seemed extremely loud while others sound quite hard…

A: Sound intensity is a quantity for describing the loudness of sounds. In general intensity is…

Q: A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of…

A: Given:  force applied by the worker (F) = 50 N  distance travelled by the wheelbarrow (S)  = 5 m the…

Q: 10. At what frequency will a 20.0-mH inductor have an inductive reactance of 100 ? A. 666.5 Hz B.…

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Q: A car drives in a spiral path of gradually decrease radius in a large empty parking lot. The speed…

A: Speed of car is constant throughout the journey(v) =10 m/s Coefficient of static friction (us) =0.8…