You apply a potential difference of 4.50 V between the ends of a wire that is 2.50 m in length and 0.654 mm in radius. The resulting current through the wire is 17.6 A. What is the resistivity of the wire?

Q: How much potential energy due to gravity would a person have if they are standing on top of the…

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Q: If a 1000 kg car is exiting a highway through an above-the-ground ramp of 5.0 m radius at 12 m/s,…

A: Given that,Mass :m =1000 (kg)Radius : r = 5 (m)Speed : v = 12 (m/sec)Here we need to find the…

Q: Complete Table 3: Using the controls on the simulation, explore the types of images produced as you…

A: Question 15: According to the table, the images formed by a diverging lens are always virtual, erect…

Q: A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on…

A: Given: The mass (m) of the object is 10 Kg. The height (h) of the building is 100 m. The force of…

Q: Give examples of the role of motors in our daily life.

A: Electric motors are extremely important in modern-day life. They are used in vacuum cleaners,…

Q: How much work is done by pulling the box in the figure for distance 20 em F-30 N 60 O 300 N O 3J O O…

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Q: When you parachute, you hit the ground with the same speed as free falling from a height of 4.5m,…

A: From equation of motion we know that v2= u2+ 2as . During freefall condition using initial velocity…

Q: 6 cm 30 nC 2 cm B

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Q: 16. A 170 pound man wants to design a workout (on a treadmill) that will expend 300 kcal. He wants…

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Q: uld be. Assume no air resistance and that g-10 N/Ng Calculate, diagram, and label all forces. DON'T…

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Q: An electric car can go 150 km on a test track at a constant speed of 100 km/hr on one charge of its…

A: Given data: The distance traveled is d=150 km. The speed of car is v=100 km/hr. The new speed is…

Q: 1. Tom, the cat, is chasing Jerry, the mouse. Jerry runs past Tom at 10.00 m/s. At the same time…

A: Data We have velocity of jerry ,v=10m/s acceleration of tom ,a=3.00m/s2

Q: what distance from the stopping point did he apply his brakes?

A: Given initial speed u = 480 km/h

Q: 17. Which of the following must occur for work to be done on an object? O the object must rotate the…

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Q: There are many levers in the human but the most common one is 3rd 2nd 1st

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Q: Q/ drive the equation : 1 В D.E + B.H U : 2 U =÷(ɛ+ 2 from 2 to

A: The given expression for the energy density is U=D.E+B.H2Here,D is the electric displacementE is the…

Q: What is speed? Force x distance minus acceleration

A: Answer                    B) The distance an object moves over time Reason

Q: What is the kinetic energy of a 45 kg teenager running at a speed of 2.1 m/s? O 21.4 J O 94.5 J O…

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Q: Q₁ = -2.0 C and Q2 = 4.0 C. If Q₁ is at the origin (x = 0.0 m) and Q₂ is at x = 1.0 m, then is the…

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Q: Calculate the dot product of the two vectors: A=i+4j-3k and B=j-2k O 10 O11 O 3 O -3

A: vector A = i+4j-3k vector B = j-2k

Q: You are on in-line skates at the top of a small hill.  Your potential energy is equal to 10 1,000…

A: Potential energy is a form of stored energy here it's is gravitational potential energy.  G.…

Q: Question 21 of 22 The batteries in the circuit below are ideal with &₁ = 22 V and ₂ = 10 V. The…

A: To solve this problem we apply kirchoff's voltage Law   in circuit we take clockwise sense for flow…

Q: A 12.0 kg bucket of water is lifted 8.00m from the bottom of a well to the top. How much potential…

A: Given, m=12.0 kg

Q: A 0.95 kilogram object is 145.43 meters above the ground. What is the object's potential energy at…

A: m = 0.95 kg h = 145.43 m

Q: An object with mass m = 152 kg moving at the speed of v = 0.53 m/s was stopped by an external force…

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Q: What is the potential energy of a 2.90-kg object at the bottom of a well 11.8 m deep as measured…

A: Given, the mass of object =2.90 kgheight of well from ground level ( bottom of well) =-11.8 mheight…

Q: The work is done in one second, or one hour, or one year is called the power. True False

A: Explanation :- We know that rate of work done i.e., work done per unit time is termed as power and…

Q: What is the potential energy of an acorn falling out of a tree 20 meters above the ground that has a…

A: Given value--- height = 20 m. weight of acorn = 23.7 N. We have to find--- potential energy?

Q: A 35.0 kg man climbs a 6.0 m ladder. What is the potential energy of the man when he reaches the top…

A: Given data:          Mass of the man (m) = 35kg          Height of the ladder (h) = 6m Formula:…

Q: What is the potential energy of an airplane that is only 0.5489 km off the ground and weighs 4120 kg

A: Given that, an airplane that is only 0.5489 km off the ground. That means  Distance, d = 0.5489 km…

Q: A certain handcrank generates power at 75W. How long will it need to be run to fully charge a…

A: Power: The energy per unit time is known as power. Power = Energy/time

Q: Explain the power you expended when running and walking in the stairs

A: Solution:

Q: A speed boat requires 80kW to move at a constant speed  of 15 m/s.What is the resistance force of…

A: Resistance is a measure of the opposition to current flow in an electrical circuit. Here, we…

Q: Show how a change in ⁰F is equal to a change in R.

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Q: A 700 N Marine soldier in basic training course climbs a 10.0 m vertical rope at a constant speed in…

A: Given, Weight of Marine soldier =W=700 N Height of climbing=h=10.0 m Time is taken by the soldier to…

Q: Two protons start out a distance of 3 m from eachother; inititally the protons are at rest. They…

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Q: Usain Bolt grabs a rope hanging vertically from an overhead bar when he is running at 10.44 m/s. How…

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Q: 87. An artillery shell is fired at a target 200 m above the ground. When the shell is 100 m in the…

A: