Warming 1 kg of water requires 4.186 kJ of energy per degree Celsius. About how long would it take to warm 1L of water from 20º C to 25º C if you immerse in the water a 100 Ω resistor connected across a 9.0-V battery aligned in series?

Q: AD.317-kg mass is attached to a spring with a force constant of 10.1 N/m If the mass is displaced…

A: Given  mass(m)=0.317 kg force constant (k)=10.1 N/m displacement(A)=0.246 m Required speed of mass…

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Q: A trampoline has a spring constant of 3,489 N/m.  How far will the trampoline sink (stretch…

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Q: The circuit below contains two voltage sources (8V and 4V) and three resistors (1, 2 and 3 ohms).…

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Q: Find the height of the tower using the information given in the illustration

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Q: 3 2 1 0 2 4 6 8 10 12 14 16 x (m) a. What is the particle's speed at (i) x = 5.00 m, (ii) x = 10.0…

A: Given : Mass m = 4 kg Force -displacement graph is given.

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Q: For a bathroom that is 6 m long x 3 m wide x 2.5 m high, calculate the frequency of Room Mode 1 0 0…

A: Given data: Dimensions of the bathroom: 6 m×3 m×2.5 m Mode: 1 0 0 Find out: The frequency of Room…

Q: In the figure ₁ = 4.36 V, ₂ = 1.23 V, R₁ = 7.1802, R₂ = 2.232, R3 = 4.942, and both batteries are…

A: Given that E1 = 4.36 V E2 = 1.23 V R1 = 7.18 Ohms emf of a cell is positive when ever we go forward…

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Q: The capacitors C1 with a capacitance of 15.0 ?F and C2 with a capacitance of 10.0 ?F are charged up…

A: To solve this problem, we can use the formula for the voltage across a capacitor in an RC circuit: V…

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Q: A student is running at her top speed of 4.6 m/s to catch a bus, which is stopped at the bus stop.…

A: given            acceleration a =0.179 m/s2           distance from bus d=40.2m

Q: The figure gives an overhead view of the path taken by a 0.160 kg cue ball as it bounces from a rail…

A: Given data: The mass of the ball is m = 0.160 kg  The initial speed of the ball is u = 2.24 m/s The…

Q: Particle 1 and particle 2 have masses of m 1.2 x 10 kg and m₂-52x10 kg, but they carry the same…

A: Given;-         Mass of particle 1 (m1) = 1.2×10-8 kg        Charge of particle 1 (q1) = 1…

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Q: Obtain a value of pi from your graphs and compare with the 'theoretical' value.

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Q: 10. * EST Estimate the magnetic flux through your head when the B field of a 1.4-T MRI

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Q: A child is bouncing an a trampoline. The child has a mass of 42.5 kg. She leaves the surface of the…

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Q: A ramp up to a loading dock has a slope length of 40.0 feet and makes an 8.63∘angle with the level…

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Q: E a e R₁ m Thi Consider the circuit shown in the figure. The battery voltage & = 17.00 Volts.…

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Q: An object 2.00 cm high is placed 12.5 cm in front of a convex mirror with radius of curvature of…

A: Determine the focal length of the mirror. f=R2=4.102f=2.05 cm

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Q: In an experiment, after a metal surface is illuminated with a laser, it starts to emit a green…

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Q: magnitude and direction of the magnetic field

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Q: can we put two strings in series even though they have different spring constants? 2. is force…

A: Part 1: Yes, we can arrange two springs in series having different spring constant.

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A: Given data: Mass of the crate: m=22.8 kg Coefficient of kinetic friction between the carte and the…

Q: 1001 30.Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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Q: 9. A vertically mounted spring (k = 850 N/m) is compressed by 28.0 cm relative to its unstrained…

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Q: The electric flux through a cubical box 26 cm on a side is 9.6×10^3 N⋅m2/C. What is the total charge…

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Q: The force produced by two parallel wires with currents running in the same direction will be…

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Q: olve for rate of dissipation of electrical energy in the external resistor

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Q: A charged particle moving through a magnetic field at right angles to the field with a speed of 31.7…

A: Given Speed of the two particle are given as v1=31.7 m/s and v2=4.94 m/s. Angle of the speed with…

Q: A 49.0 g marble moving at 2.00 m/s strikes a 21.0 g marble at rest. Note that the collision is…

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Q: uniform electric field of magnitude 3.6×104N/C is at an angle of 80° to a square sheet with sides…

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Q: A 20.0 kg object is dropped off of a 30.0 m cliff. How fast is the object going when it hits the…

A: Given Data:- Mass of the object is m=20.0 kg Height of the cliff is h=30.0 m Required:- Speed of the…

Q: A 9-kg mass is attached to a spring hanging from the ceiling, thereby causing the spring to stretch…

A: The mass of the object attached is 9 kg. The damping constant is 8 N-sec/m. The external force…

Q: A 14 gauge copper wire of diameter 1.628 mm carries a current of 10.5 mA. (ρcopper=1.72×10−8Ω⋅m.)…

A: Write the given values with the suitable variables. d=1.628 mm=1.628×10-3 mI=10.5 mA=10.5×10-3…

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.