A piece of copper of 0.10 kg, initially at 95°C, is introduced into a 0.28kg aluminum container containing 0.20 kg of water at 15°C. What is the final temperature of the system?

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Q: A car travels at 61 km/h and covers a distance of 32.904 m. How long in minutes did it take the car…

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Q: Problem #5 One end of a uniform = 4.00m long rod of weight w is supported by a cable at an angle of…

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Q: Which colours of light emitted from an atom is associated with the most and least change in energy

A: We know, Energy = Planck's constant * frequency

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A: Given:  Initial velocity "u"= 20.5m/s Acceleration "a"= 25m/s² Time "t "= 7.6 sec    Let the final…

Q: A rectangular prism with width of 5.2cm and a length of 7.8cm is made of metal alloy. After you…

A: Weight = Density × volume × g

Q: When a battery “dies” the resistance inside the battery rises while the voltage it can produce…

A: Given: The emf of the new battery is 1.5 V. The emf of the old battery is 0 V ( dead). The…

Q: a. electric current that flows in the circuit b. the voltage in points A, B, C and D (VA, VB, Vc and…

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Q: The time, in seconds, for the current through a 652-ohm resistor in an RC circuit, with an initially…

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Q: In the energy level diagram. Which of the following will produce a photon with the SECOND longest…

A: energy difference is inversely proportional to the emitted wavelength. We have…

Q: An aluminum plate has a circular hole. If the temperature of the plate increases, what happens to…

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Q: 3. Two 1.5 V batteries are connected in parallel. What is the voltage across the batteries? 4. A…

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Q: 2. A proton moves through a magnetic field of magnitude 4.5 T at a speed of 7.08 x 106 m/s…

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Q: An object weighing 2 kg was dropped from the ground at a height of 90 meters. What is the height of…

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Q: A pitcher throws a baseball of mass m 0.150d kg with a velocity of 43.7 m/s. The momentum of the…

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Q: A non-uniform thin rod is bent into an arc of radius R. The linear charge density λ of the rod…

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Q: Nuclear Physkcs: Answer the following a. The diagrams below represent two different nuclear…

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Q: A plane wall is 2 meter high by 3 meter wide and is 2 cm thick. It is made of 0.50 W/m-K. A…

A: There are numerous applications for the heat flux value. It aids in the evaluation of heat transfer…

Q: 9. An electric dipole in a uniform horizontal electric field of magnitude 2.5 x 105 N/C is currently…

A: Since there are no losses, the diploe will swing to an angle θ on the other side before coming to…

Q: In the case of a concave mirror, the image of an object is O Not real, large and unproportional. O…

A: Concave Mirror: Location of theobject Location of theImage Size of theimage Nature of image At…

Q: 18) A ball has a mass of 3 kg. It is connected to a spring that is displaced x = 0.5m away from its…

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Q: 5. Joseph sweeps his sidewalk with a broom. Joseph performs 42 Joules of work pushing dead leaves…

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Q: An electric dipole in a uniform horizontal electric field of magnitude 2.5 x 105 N/C is currently at…

A: since there is no losses the dipole will move to an angle θ on the other side before coming to rest.

Q: A car is traveling at a steady 85 km/h in a 50 km/h zone. A police motorcycle takes off at the…

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Q: Which of the following statements about novae is not true? A. A nova involves fusion taking place…

A: In this problem, it is asking which statement is not true about a nova.

Q: Do you have an idea about how the rainbows were formed?

A: Do you have an idea about how the rainbows were formed?

Q: 18. The motion of a bee flying through east is given by: x(t) = 18.0 m + (10.4 m/s)t –…

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Q: Motional emf 1.PNG OB For the configuration above, the rectangular bar is moving at 4.01 m/s to the…

A: Given data: The speed of bar is v=4.01 m/s. The magnetic field is B=13.5 T. The external resistance…

Q: non-uniform thin rod is bent into an arc of radius R. The linear charge density λ of the rod depends…

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Q: ANSWER ALL 3.What is electromotive force in relation to the concept of work? 4. In what ways…

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Q: Problem 9 You shine your favorite laser pointer (which has a wavelength of 450 nm) towards two slits…

A: In this question we have to find how far away from the central bright maximum will the third order…

Q: The normal force on the mower. 10-11 A person pushes a 14.5 kg lawn mower at constant speed with a…

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Q: The electrostatic force between an electron and a proton is weaker than the gravitational force. O…

A: The electrostatic force is the attraction of two electric charges. It's what causes children's hair…

Q: Consider holding a heavy chair at arm's length for 3 minutes. At the end of this interval, your arms…

A: we can define work as follows: W=Fd Where,  F is the force W is the work done D is the displacement

Q: A two-slit interference set-up with slit separation d = 0.10 mm produces interference fringes at a…

A: In this question we have to find the split separation ratio ds. Please give positive feedback if the…

Q: Make an image with a convex mirror and a concave mirror when object is beyond C. Show your drawing…

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Q: 7.11 • You are testing a new amusement park roller coaster with an empty car of mass 120 kg. One…

A: Given: The mass of the car is 120 kg. The speed of the car at point A is 25 m/s. The speed of the…

Q: 4) You are cutting the grass of the school football field with a push mower, of mass 12.6 kg. You…

A: ∑F = ma summation of all forces is the product of mass and acceleration. 117 - 45 - 58 = 12.6a…

Q: on has a momentum of 8.5 × 10-21 kg⋅m/s. What is its wavelength in meters?  Calculate its energy in…

A: GivenMomentum of photon, p=8.5×10-21 kg m/s

Q: A mass weighing 50 pounds stretches a spring 6 inches. The mass is initially released from a point 3…

A: In this question we have to find the equation of motion for the given system. Please give positive…

Q: Which of the following is a key difference between Newton's Law of Gravity and Einstein's equations…

A: Einstein’s theory of general relativity explained some interesting properties of gravity not covered…

Q: R 15 2 V= 120 V R2 20 2 Ry= 50

A: Given data :- R1 = 15 Ω R2 = 20 Ω R3 = 5 Ω V = 120 V

Q: The ____________ is the most important layer of the ionosphere for refracting HF radio wave and at…

A: Ionisation is the process in which electrically charged and neutral atoms and molecules gain or lose…

Q: A bullet of mass 11 g strikes a ballistic pendulum of mass 1.9 kg. The center of mass of the…

A: Answer:-  Given  Mass of bullet (mb) = 11 g = 0.011 kg    Mass of pendulum (mp) = 1.9 kg  Height (h)…

Q: Which of following is classified as FORCE? O A. Friction O B. none of the choices O C. Normal Force…

A: Friction , normal force and tension all are force

Q: What is the acceleration produced by a force of 125 N exerted on an object of mass 20 kg.

A: Given data :                           Force     =     F                           Mass     =     m…

Q: THE MOST HIGH INDICATORS OF THE COEFFICIENT OF NATURAL LIGHTING IN THE RESIDENTIAL PREMISES

A: ANS: 3. Same for the whole room

Q: It refers to the "filtering" of light as it passes through a polarizing medium. A.Reflection of…

A: Reflection of light : It is defined a phenomenon by which light bounces back after striking the…

Q: Force vs. Displacement 100 80 60 40 20 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 x (meters) The graph…

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Q: The electric field lines of a positive charge point while the field lines of a negative charge point

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