koibok slides down a 3 m lông 30 degree incline and then transilions to a flat iictiontess fHce Thể boxexperiences a force of kinetic friction of 3 N as it slides down the ineline. then otlides with a spring with spring a constant of 30 N/m located on the flat frictionless surface natis the maximum compression of the spring?

Q: A boy of mass m climbs up the stairs of vertical height h. What is the work done by the boy against…

A: Given,           A boy of mass m climbs up the stairs of vertical height h.

Q: What is the work done by the force pulling a block 1 meter with two 0.5 kg masses on it?

A: We know, Workdone=Force ×displacement

Q: What is the average useful power output of a tractor that does 290O J of useful work in 4.8 hours?…

A: We know that, Power= Work done per unit time Where time is in seconds  , Mathematically, P = W x t…

Q: A filled moving box is being pushed out of an apartment to the car with a force of 175N over 5m.…

A: Given data:          Applied force =175 N Total displacement = 5 m Write the equation for the work…

Q: Using the approach discussed in the text, calculate the energy expended per second person running at…

A: Given speed of person, v=3 m/sMuscle efficiency=20 %Mass of leg, m=11 kgStep length=1 m

Q: I beleive there is an error in getting to the solution. 0.1kg is 100g. The work here shows 0.1kg =…

A:

Q: Question What will be the potential energy of a body of mass 5 kg kept at a height of 10 m ?

A: Given data, Mass of the body, m = 5 kg. Height h = 10 m. Acceleration due to gravity g=9.8 m/s2

Q: A box with a max of 20 KG at 5m is lifted to 20 m how much work was done? (Used=changed in PE

A: The distance moved by the box is h=20-5m=15m

Q: A spring has a natural length of 20 cccc. If a 25 NN force is required to keep it stretched to a…

A:

Q: If a .770 kg ball is tied to a 1.5m string and swung in a vertical circle, what is the work done by…

A: Given:mass of ball (m) = 0.77 kg. length of string (l) = 1.5 m. displacement by string = 2l = 3 m.

Q: a force of 5 punds compresses a 15 inch spring a toatl of 3 inches how much work is done in…

A: Given data The magnitude of the force is Fs = 5 pounds The compression in the spring is x = 3 inch…

Q: How much work is required to raise a child of mass 35 kg up to 1.5 meters high? answer should be in…

A: Given  Mass (m) = 35 kg  Height(h) = 1.5 m    Required energy will be equal to the increase in…

Q: How many kilograms are in 48 ounces?

A: Given mass = 48 ounces To find : mass equivalent in kilograms

Q: work and energy. What is conservation of mechnical

A:

Q: An arrow of mass 100g is drawn back so that 5J of elastic potential energy is stored in the…

A: Mass of the arrow, m = 100 g = 0.1 kg Potential energy stored in the string, U = 5 J   The final…

Q: A small gasoline‐powered car weighs 1100 kg. The rear seating weighs 34 kg. How much energy and…

A: GIVEN Weight of the gasoline powered car = 1100 kg rear seating weighs 34 kg Lifetime of the car =…

Q: A box with a mass of 3.0 kg is accelerated from rest by a constant force across a foor at a rate of…

A: Given that,  Mass of the box, m = 3.0 kg Initial velocity, u = 0 m/s Final velocity, v = 1.7 m/s…

Q: Why is it that the work done in holding a bag w above the floor is 0?

A: GivenF=1 N1 m above the floor

Q: What net force, in Newtons, is needed to do 1,164 J of work over a distance of 125 meters?

A:

Q: What is the total work done by a 75kg man who pushes a box 7m up a ramp that makes an angle of 16o…

A:

Q: A certain amount of fuel produces 15 quads (1 quad=1.055×1018 J) of energy. In how many days the…

A: Given that, amount  of fuel produced = 15 quad  1 quad=1.055×1018 J Note : - i think  demand = 1014…

Q: Relationship between free energy and work function

A: In science, free energy is said to be the internal energy which can be used to do work. There are…

Q: What is the product of the algebraic sum of kinetic energy and potential energy?

A: Solution: An object can have energy due to its motion or due to its position. The energy of an…

Q: What is the work don if by 15N force applied on the object and displaced by the 5 m ?

A: We know thatWorkdone=force×displacement

Q: How much work is done in ergs in pulling a box 2 m across a table top with a force of 20 N in…

A:

Q: Make a simple rational agent design, specify the goal and have PEAS (Performance Measure,…

A:

Q: A ball was launched upwards and vertically at a speed 3 m/s up to a height 4 m. What the work done…

A:

Q: A motionless object could have (a) speed. (b) kinctic energy. (C) elastic energy. d) all of these.…

A: The amount of energy is required for any object to move from one place to another or heat up.

Q: An elevator is able to raise 1,000 kg to a height of 42 m in 14 s. (a) How much work does the…

A: (a) The work done by lifting the elevator can be determined as, Here, m, g and h represent the…

Q: A bike traveling on a straight and flat stretch of track must over come 1 kN of resistance to…

A:

Q: If the total work done on an object is positive, O none of the above O its kinetic energy will…

A: We know that, Work done(W) = change of K.E                           = (K.E)f - (K.E)i

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

A: GivenInput energy = Output useful energy

Q: What is the work done (Nm) to a system with a mass of 20kg by lifting it using 2000N of force and…

A:

Q: A box is dragged across the floor by a constant force of 50N. If the force makes and angle of 37…

A: The equation for the work done is given by

Q: When a punter kicks a football, is he doing any work on theball while the toe of his foot is in…

A: The punter can only be applying a force when he is in contact with the football. Therefore the…

Q: A spring has a natural length of 4 m. If a 4-N force is required to keep it stretched to a length of…

A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.