Name the physical quantities related to the following units: joule
Q: Scalar or dot product of vectors -7 i+ -7j+ -8 k and 9 i+ -3 j+ -2 k is: Answer:
A: Given vectors: Vector A= [ -7i + (-7j) + (-8k) ] = ( -7i - 7j - 8k ) Vector B = [ 9i + (-3j) + (-2k)…
Q: Work done When the direction of the force is in the direction of the displacement When the direction…
A: The work done by the object is expressed as follows. W=F·d Here, F is the force and d is the…
Q: person lifted a bag of groceries 2.89 m from the floor onto a counter top using a constant force of…
A:
Q: A 50ft chain with mass density 5lb/ft is initially coiled on the ground. How much work is performed…
A:
Q: State whether the potential energy of the underlined object increases or decreases as a result of…
A: Potential energy is basically the amount of work done is stored in the process.
Q: According to the work-energy principle, the NET work on a system causes: an increase in the kinetic…
A: Work Energy theorem state that Total work done by conservative, non conservative and pseudo forces…
Q: A 1.80 kg ball is held at rest up one side of a half-pipe. It is 1.90 m off the ground when it is…
A:
Q: A 121 lb. weight is being help up by a block and tackle pulley system of 3 attached pulleys also…
A: Here, 3 strings are connected with the block, and each has tension 2T. Draw the free body diagram.
Q: How much work is done against gravity in lifting a 9 kg object through a vertical distance of 55 cm?…
A: Expression for force applied to lift the object - F=mg Where m=Mass=9 kg g=Acceleration due to…
Q: Calculate the kinetic energy in joules of a 1400 kgkg automobile moving at 15 m/sm/s . Express your…
A: Given data: Mass (m) = 1400 kg Speed (v) = 15 m/s Required: Kinetic Energy (KE)
Q: Which of the following is the Sl unit for gravitational electric powe Watt Work O Kilogram Meter…
A: Gravitational electric power also termed as Gravitricity power. Gravitational electric power is form…
Q: WORK = (YOUR WEIGHT IN NEWTONS) X (HEIGHT OF STAIRS IN METERS) Work (Joules) = force (N) x distance…
A: Given that, Weight (Wt)= 48 N Height of stairs (h)= 1.8 m Time taken in walking (tw)= 0.8 s Time…
Q: A person who weighs 80 pounds walked up two flight of stairs in 5 minutes. Each flight of stairs has…
A: The expression for find work is W=F·d Substitute values in the above equation…
Q: Work is (select all that apply) the force times the parallel displacement the dot product of force…
A: Solution: Work done is defined as the dot product force and displacement where θ is the angle…
Q: 17. Which of the following must occur for work to be done on an object? O the object must rotate the…
A:
Q: There are many levers in the human but the most common one is 3rd 2nd 1st
A:
Q: How much kinetic energy does a 0.3-kg stone have if it is thrown at 15 m/s? calculate to one…
A:
Q: stant force of 10.3 newtons is used to push a 3.0 kilogram mass 15.0 meters across the floor. How…
A: We know that the work done on an object is defined as when a force F is applied to an object of mass…
Q: Scalar or dot product of vectors 2 i+-6j+ -3 k and -2 i+-4j+-8 k is:
A: A→ = 2i^ - 6j^ - 3k^B→ = -2i^ - 4j^ - 8k^
Q: What is the average power consumption in watts of an appliance that uses 8.18 kW · h of energy per…
A: The average power consumption is given by Where E = Total energy used, t = total time taken
Q: In Maxwell's Wheel experiment, which of the following can be said? а) b) c) d) Kinetic energy is…
A: The Maxwell’s wheel experiment is aimed to investigation over the conversions of energy between…
Q: The potential energy of a girder, after being lifted to the top of a building, is 5.17 × 10⁵ ft lb.…
A:
Q: A force of 7 pounds is required to hold a spring stretched 10 in. beyond its natural length. How…
A: Given: The force required to hold the spring stretched 10 in. beyond its natural length is…
Q: if the power used to carry a luggage upstairs is 99 watts how much power is used to carry the same…
A:
Q: Which of the following is the SI unit for gravitational kinetic energy? (Joule is not the answer)
A:
Q: Two physical quantities a and b are added together, and the sum of two vectors is, as shown in the…
A:
Q: The kinetic energy of an object at a given moment is 10 joules and its potential energy is 10…
A: Given data: Initial kinetic energy of an object is, KE1=10 J. Initial potential energy of an object…
Q: A runner with a mass of 40 kg increases his speed from rest to 8 m/s. How much work has she done
A:
Q: Explain the power you expended when running and walking in the stairs
A: Solution:
Q: 3. Consider the hydrogen atom as a small planetary system with the proton playing the role of the…
A: Here, the hydrogen atom is considered to be a system similar to planetary motion with the proton as…
Q: What is the difference between energy conservation and the law of conservation of energy? Give some…
A: Energy conservation and law of conservation of energy
Q: Explain if it is possible for a system to have negative potential energy
A: Answer Potential energy is the energy stored in any system or object by virtue of its position.…
Q: 10. The dot product of a, · a, is equal to: а. 1 b. 0 C. C. az d. -1
A:
Q: QUESTION 9 The rate of change of work done is called : O Potential energy ,and SI unit is joule O…
A: The answer is given below
Q: Which of the following statements is true? Work is a Scalar Quantity Work is positive when the…
A: 1) solution - Yes work is scalar quantity We know that, Work (W)= F.s Where F and s are the vector…
Step by step
Solved in 2 steps
