++ ++ 4 t ↑ put in or take it out

Q: You have the following three resistors in parallel rated at 5 W. a. What is the safe total voltage?…

A: Part a) Power P = V²/R  Since Power rated is given in resistor = 5watt So from the above formula V=…

Q: An aquarium 15m long, 4m wide, and 6m deep is full of water. The density of water is 1000kg/m³ and…

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Q: The chart below shows the current speed of the Colorado River taken at different times throughout…

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Q: projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus.

A: Given: Mass of alpha particle or particle 1 is m1=4 u Mass of particle 2 is m2=16 u Scattering angle…

Q: A length of 8 gauge copper wire has a resistance of 4.8 ohms at a temperature of 22°C.  Find the…

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Q: model of a red blood cell portrays the cell as a spherical capacitor, a positively charged liquid…

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Q: A child pulls a sled with constant speed

A: Given: The angle of inclination is θ=30° The distance covered by the sled is d=100 m The coefficient…

Q: The figures show a hypothetical planetary system at two different times. The system has a star S and…

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Q: A force of 77 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. How…

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Q: 1. What effect does increasing the index of refraction have on the critical angle? 2. What equation…

A: Total internal reflection occurs when a light ray traveling through a medium with a higher…

Q: A ball is projected upward from the ground level with an initial velocity of 96 feet per second.…

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Q: Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first…

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Q: A converging lens (f = 12.3 cm) is located 44.9 cm to the left of a diverging lens (f = -7.16 cm). A…

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Q: One solenoid is centered inside another. The outer one has a length of 53.0 cm and contains 6750…

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Q: An automobile wheel with a 9.00-cm radius, as shown below, rotates at 1.50 rad/s. How fast does a…

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Q: Two forces (FA = 34.5 N and FB = 23.3 N) are applied to a meter stick (L = 1.00 m) which can rotate…

A: Torque only acts due to force acting perpendicularly with respect to the axis of rotation and at a…

Q: 4 + R +++ charged conductor E or V for r≤k and V > R Uniformly charged insulator E and V for VSR and…

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Q: Immediately after the switch is closed, what is the voltage across the capacitor? E 018 zero Submit…

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Q: A tank has the shape of an inverted right circular cone with height 9m and radius 14m. It is filled…

A: To empty the tank by pumping the hot chocolate over the top of the tank, we need to lift the entire…

Q: An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by…

A: Given : Area = A = 7.60 cm2 = 7.60 x 10-4 m2   [ as 1 cm2 = 10-4 m2  ] Distance between plates = d =…

Q: A flat circular loop of radius 0.598 m is rotating in a uniform magnetic field of 13.15 T. Find the…

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Q: How much energy is required to convert 2.3kg of ice at 0C to water at 29C ?

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Q: The average intensity of the light is 5 = 2.36 x 10° W/m².

A: Given: Average intensity of light is S-=2.36×109 W/m2 Find: (a) rms value of electric field. (b) rms…

Q: A thin 50 cm (0.5 m) long metal bar with mass 0.75 kg rests on (but is not attached to) two metallic…

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Q: Same type of track as in the previous problem, this time with d = 3.30 m. The block starts at x = 0,…

A: Apply the energy conservation equation and substitute the corresponding values to calculate the…

Q: how long will it take a sound pulse to travel a distance 1m with an approximate speed of sound of…

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Q: A single slit is illuminated with 610-nm light, and the resulting diffraction pattern is viewed on a…

A: Wavelength ( λ) = 610 nm Screen distance ( L ) = 2.3 m Distance between the first and second dark…

Q: Compute the electric field 8 m away from a particle with a charge of 5 nC.

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Q: 2. What is the smallest number of whole logs (density = 765 kg/m³, radius = 0.084 m, length = 3.27…

A: Given          mass of people =mp=80kg        ρwood=765kg/m3       R=0.084m       L=3.27m

Q: A dry air parcel the temperature at which is 5 degrees C at the Earth's surface, is liften…

A: Given:Temperature of air parcel at Earth's surface: Ti=5°C=278 KFinal height of air parcel: hf=4.5…

Q: How much heat does a  50.0 g silver spoon (20.0 degree C) need to absorb to reach 89.0 degrees C…

A: ∆T=89-20=69om=50 gAnd for silver :C=0.235 J/g°C And heat required is given by:Q=mC∆T

Q: What is the voltage across the 10k resistor? [Select] What is the current through the 4k and 6k…

A: We know from Ohm's law: V = IR, where V is the voltage, I is the current, and R is the resistance.…

Q: Consider a system consisting of three particles: m₁ = 2 kg, ₁ = m/s m3 = 3 kg, v3 = m/s (a) What…

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Q: An electromagnetic wave strikes a 1.01-cm² section of wall perpendicularly.

A: Given: Cross-section area is A=1.01 cm2 The rms value of wave's magnetic field is Brms=5.66×10-4 T…

Q: Now set up the materials as water on top and air on the bottom. Move the laser back and forth 1.…

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Q: A woman is standing in the ocean, and she notices that after a wave crest passes by, five more…

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Q: Find the magnitude of the force that the magnetic field exerts on the wire. Express your answer in…

A: Forces in the wire is illustrated as : Given : Current →I=4.5 A Magnetic field →B=0.250 T. Length…

Q: For safety reasons, electrical codes have been established that limit the amount of current a wire…

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Q: A planet moves in an elliptical orbit around the sun. The mass of the sun is Ms. The minimum and…

A: According to Kepler's third law, write the relationship between the period and distance.…

Q: object is attached to a spring that has a force constant of 74.5 N/m.

A: Given: Mass of object is m=205 g Force constant of spring is k=74.5 N/m Maximum distance moved or…

Q: V₁ = I₁ = Req2 R₁ = 100 R1 10Ω VT= I2 = IT = 30v R₂ = 150

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Q: Sketch a motion diagram and a position-versus-time graph for the motion of a cart attached to a…

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Q: The figure below shows an electron passing between two charged metal plates that create an 100 N/C…

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Q: There is a 11.3pC point charge. What is the magnitude of the electric field (in N/C) 64.8mm away…

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Q: 16. Jeff Gordon leads his race and must drive into a curve at top speed to win it all. The radius of…

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Q: OK, this is the last time for one of these crazy adventures. THIS time, though, there is a window in…

A: Solution: We can use the equation of motion for an object in free fall to solve for the acceleration…

Q: Why is it important to measure neutrinos and positrons coming from the sun?

A: Neutrinos are subatomic particles that are created in nuclear reactions, such as those that occur in…

Q: The flywheel of a steam engine runs with a constant angular velocity of 240 rev/min. When steam is…

A: Given data: The initial angular velocity of flywheel is ω=240 rev/min The wheel stop at t = 2.6 h =…

Q: The electric force between two point charges with a magnitude of +800µC and +900µC is 15N. How far…

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Q: A uniform thin rod of length 0.927 m is hung from a horizontal nail passing through a small hole in…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.