Significant figures are important. Three students are each asked to measure one side of a box. Student 1 measured the first side to be 2.2 cm Student 2 measured the second side to be 5.87634328971469817463982476238974623897469821374 cm Student 3 measured the third side to be 4.11 cm What is the volume of the box to the correct number of sigfigs? 53.134 cm None of the above choices are correct O 53.1338960256 cm 53.13 cm 53 cm 53.1 cm

Q: What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15 m/s?

A: The mass of the object, m=478 kg   The velocity of the object, v=15 m/s

Q: How much work is required to lift a 9.5-kg backpack 1.4 m to put it on?

A: Dear student The work is defined as : W = Force × Displacement in the direction of force

Q: The 85 kg man pushes against a stationary wall with a force of 250 N for 30 seconds. How much work…

A: Work is basically the dot product between the force and the displacement of the object. The formula…

Q: What is the kinetic energy of a car that is traveling at 18.6 m/s if it has a mass of 1,240 kg?…

A: Given Mass of car m = 1240 kg speed of car v = 18.6 m/s

Q: A 75 kg rock is 36.5 m up a cliff what is it’s potential energy

A: The given values are, m=75 kgh=36.5 m

Q: What is the potential energy of a 5kg bowling ball that is held 8.9 meters above the ground

A: In this question we have to find the potential energy of the body. Please give positive feedback if…

Q: A bowling ball has a mass of 10kg and is at a height of 5 meters What is its GPE and KE at the top

A:

Q: If the weight was 120 lbs what would the power be in hirsepower

A:

Q: potential energy

A:

Q: ed to lift a box 0.5 meters above a floor what amount of work was done to lift the box

A: GivenForce, F=12 NDistance, d=0.5 m

Q: Kinetic Energy: (a) What is the kinetic energy of a 23 kg dog that is running at a speed of 8 m/s?

A: Given: mass,m= 23 kg  velocity,v = 8 m/s

Q: If a crane does 350J of work on a beam in 6 seconds, what is the crane's power?

A: Given The Work done by the crane is W = 350 J. The time up to which work is done is t = 6 s. The…

Q: An object has kinetic energy of 74J. If its speed is 5.2 m/s, waht is its mass? Gravity is 9.8ms and…

A:

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

A:

Q: What are the units of work

A: Work is defined as the dot product of force and displacement then it's unit is going to be…

Q: What is the mechanical energy of a moving object that has a mass of 5 kg, a velocity of 3 m/s and is…

A:

Q: A crane is lifting a 13, 700 N load from the ground to a height of 41.4 m. If this process takes…

A:

Q: The kinetic energy of a motorcycle and driver is 62,735 J if their total mass is 500 what is the…

A: Given data:  Kinetic energy (KE) = 62,735 J Mass (m) = 500 kg Required: The velocity (v)

Q: 6. An object moving with a speed of 67 m/s and has a kinetic energy of 500 J, what is the mass of…

A: Kinetic energy of an object is given by (1/2) of the product of mass and velocity squared K=1/2 Mv^2…

Q: A weightlifter lifts a 240 kg weight a vertical distance of 0.3 m in 0.9 s. What is the power…

A: Given,        mass of the object (m)= 240 kg        vertical distance (h)= 0.3 m        time (t) =…

Q: How much power is required to pull a sled if you use 60J of work in 5 seconds? Answer

A: power is work done per unit time.  if W work has been done in t time the power applied is     P=Wt

Q: How are Newton's laws and the law of conservation of energy very important?

A: Newtons laws of motion are foundation of classical mechanics. Newton's laws of motion used to solve…

Q: what is horsepower

A: Horsepower is a unit of measurement used for Power. In layman terms, it is the amount of power an…

Q: mangetic lift used to hoist very heavy iron objects at a scrap yard lifts a car of mass 2367.55 kg…

A:

Q: What is the kinetic energy of a 1,904.53 kg car that travels at 7.92 m/s?

A:

Q: Power: A kilowatt-hour is equivalent to   1000 W 3600 J 3,600,000 J/s 3,600,000 J 3600 J/s

A: Answer:- 3,600,000 J    1 kilowatt - hour is equivalent to  3,600,000 J  Because  1 kilowatt - hour…

Q: How much work is done in lifting your classmate with a mass of 72kg 1.3m off the floor?

A: Given: The mass of the classmate is 72 kg.            The distance is 1.3 m.  To determine: The work…

Q: How much work is required to lift a 4.6-kg backpack 1.1 m to put it on?

A:

Q: In an input of 100J in a pulley system increases the potential energy of a load by 60J , what is the…

A: Given:Input energy = 100 JOutput energy = 60 J

Q: alculate potential energy of a rock of 7 kg that is lifted at a height 10 m above the ground.

A: Given Mass of rock is m= 7 kg Height is h= 10 m Acceleration due to gravity is g=9.80 m/s2   Find…

Q: If a moving car has a kinetic energy of 17,480 J and a mass of 1,342 kg what would be its velocity…

A: We have Kinetic Energy KE =12mv2Given KE =17480Mass m = 1342 kg

Q: How much work is required to throw a ball with a mass of 0.44 Kg 23.4 m/s?

A: Here in this question we consider the ball initially is in rest.                 i.e. vi = 0 m/s.…

Q: 5. How much potential energy does a car gain if a crane lifts the car with a mass of 2,500 kg and 20…

A: Mass of the car, m = 2500 kg Height that car lifted to, h = 20 m

Q: how much work is done lifting a 30 kilogram block 3 meters

A: calculation

Q: Suppose a 87.5kg sprinter acccerlates from rest to 11m/s in 3.1 s a)what is the power output in…

A: Mass (m) =87.5 kg Initial velocity (vi) = 0Final velocity (vf) = 11 m/s Time (t) = 3.1 s

Q: How much work is done by the force of gravity when a 45N object falls to the ground from a height of…

A:

Q: Power: A kilowatt-hour is equivalent to 1000 W. 3600 J 3,600, 000 j/ s . 3, 600, 000 J 3600 j/s

A: Answer:- 3,600,000 J  A kilowatt- hour = 3,600,000 J    Because    1kilowatt - hour = 1 kilowatt × 1…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.