Is the weight of a system an extensive or intensive property?

Q: What is the study of kinetics ?

A: In Physics, Kinetics is the branch of classical mechanics that studies the motion of objects and its…

Q: A mass weighting 40 lbs stretches a spring 9 inches. The mass is in a medium that exerts a viscous…

A:

Q: A water pump raises 50 litres of water through a height of 25m in 5 s. Calculate the power of the…

A: Given: The volume of the water is 50 L. The height achieved by the water is 25 m. The time interval…

Q: which is more tiring, running or walking in the stairs? explain

A: Given : Which is more tiring running or walking in the stairs ?

Q: A force of 50 N is applied to the end of a lever, which is moved a certain distance. If the other…

A:

Q: Which among the following derived quantity has the same unit as that of energy a. Power b.…

A: The SI unit of Energy is Joule or kgm2/s2. 1 kgm2/s2 = 1 joule

Q: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to…

A: Given: Load lifted W = 45000 N. Length L = 4m. To determine: Tension in the wire.

Q: Equilibrium is the state of an object when

A: When all the forces that act upon an object are balanced, then the object is said to be in a state…

Q: Compare the two springs having the same load (100g) with different Spring strengths. (Spring one has…

A: Spring- i t is a device used to store mechanical energy. Strength of an spring is its ability to…

Q: Calculate the power oft an electric motor that can lift 800 kg of water to store in a tank at a…

A: Given, mass of water=m=800kg height to lift=h=1500cm=15 m Time=20 s g=10 m/S^2 as we know that power…

Q: In raising a 5000-N piano with the pulley system, the workers note that for every 2m of rope pulled…

A: The work is equal to the force time the distance.

Q: A force of 50N is applied to the end of a lever, which is moved a certain distance. If the other end…

A: Step 1Force that is applied to the end of a lever isTo find the force exerted when the other end of…

Q: A mass weighting 24 lbs stretches a spring 2 inches. The mass is in a medium that exerts a viscous…

A: Given,Weight, W = 24 lbsSpring is stretches by, x = 2 inchesviscous force, fd =28 lbsmass has…

Q: An anchor weighing 100lb in water is attached to a chain weighing 3lb/ft in water. Find the work…

A: Given: An anchor weighing 100lb in water is attached to a chain weighing 3lb/ft in water. Find the…

Q: During a bench press, does the amount of work, or power, required depend on the rate at which the…

A: The amount of work done is the product of the force applied and the distance through which the…

Q: What are the circumstances that must be present for a system to come to a standstill?

A: We have to mention the circumstances for a system to come to standstill.

Q: How would I calculate power from the flow rate of a river and the distance the water would fall at…

A: As the water falls from a height its potential energy is converted into its kinetic energy.

Q: What is the efficiency of the machine that miraculously converts all the input energy to useful…

A: GivenInput energy = Output useful energy

Q: Consider a conical water tank with a diameter and height of 8m and 10m. How much work will it…

A:

Q: What is the advantage to a gymnast of beung short in stature?

A: The centre of gravity of a person having short stature is closer to the ground than that of a taller…

Q: In the hydraulic machine shown, you observe that when the small piston is pushed down 10 cm, the…

A: The displacement times the force for both the piston is the same.

Q: In raising a 5000-N piano with a pulley system, the workers note that for every 2 m of rope pulled…

A: The equation for the work done is given by,

Q: Assuming this maximum height was the result of one push from her parent, what was the average force…

A: Given data, distance S=152 cm

Q: Name the physical quantity which is measured in terms of horse power.

A: Watt is the unit of power and Horse power is also a unit of power which is denoted as 'hp' .1…

Q: An energetic person is powerful. Is the statement true or false. true false lack of information

A: Power is rate of energy transfer. P = E/t. So, a person who is more energetic ,has more power.

Q: • In order to keep a leaking ship from sinking, it is necessary topump 12.0 lb of water each second…

A:

Q: excitation is increased by 20% Jor Me suml ) Find the P, Q, E und s of the given system when…

A:

Q: A mass weighting 32 lbs stretches a spring 3 inches. The mass is in a medium that exerts a viscous…

A:

Q: energy is dissipated

A:

Q: kg is lifted 10 m above th , measured in watts (W): nd to the nearest whole

A:

Q: The elasticity of a good is E=0.2. by (a) A 3% price increase will cause the demand to -Select--- %.…

A:

Q: Which of the following quantity are extensive and which are intensive? With explanation

A: Intensive Properties of any physical quantity is that property which does not depend on the size or…

Q: Find the amount of work done in blowing a soap bubble of surface tension 0.06N/m from 2cm radius to…

A: The equation for the work done is given by,

Q: The boom of the wall crane 4m long is held at right angles to the wall by a wire that is attached to…

A: Given data: The length of the wall crane, l=4 m. The distance from the foot of the boom to the…

Q: What is the advantage to a gymnast of being short in stature?

A:

Q: "Explain how ""elastic potential energy "" dramatically changed the sport of pole vaulting when…

A: It is because, the flexible fiberglass can bend easily as compared to stiffer wooden poles.

Q: Compare two pumps that are being used for a continuing indefinite requirement. What is th…

A: Given :   Pump A Pump B Initial cost $7000 $5000 End-of-useful-life salvage value 1500 1000…

Q: Calculate the power required during the lifting process when the load is 25m from the top and the…

A: Given Data : The distance of the load from the top is given as d = 25m. The velocity of lifting is…

Q: Why is it advantageous to roll with the punch in boxing?

A: The impulse is the change in momentum of the object that acts upon it.

Q: Which one is not a component of Physical Fitness * O Muscular Flexibility O Muscular Endurance…

A: We know there are five components of physical fitness.

Q: Calculate what useful work is done in pumping 1000gallon of water to height of 60 feet.if this work…

A: Volume of water V=1000 gallon=3785.41 L=3785.41*10-3 m3, height h=60 feet=18.28 m         (1 m=3.281…

Q: 0.14 kg baseball is d eight of 2.0 m above agnitude of its mome ound if we neglect a

A: Given that  Mass (m)=0.14 kg height (h)=2m Determine magnitude of momentum just before it hits…

Q: An isolated system is one in which the net force applied, Fnet is equal to

A:

Q: Calculate the work done in lifting a 500N barbell 2.2m above the floor?

A: Given:Weight of the barball = 500 NDisplacement of the barbell = 2.2 m upward

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!