QUESTION 4 This is a continuation of the previous question. Right after the collision the masses swing up to a height h. What will h be in meters? Use g = 10 m/s2.

Physic

Needed to be solved this question correctly in 30 minutes and get the thumbs up please show neat and clean work

Common speech often uses the term "work" to refer to situations where, according to the physics definition of work, there is no actual work done. Find an example of this and explain why the non-physics public considers this work and what a proper physics response would be to this error. You must use ordinary language in an attempt to clarify what is happening do not rely on trigonometry or scalar dot products in you answer . Some examples you could consider include a person pushing on a wall and the wall not moving, a person doing a "bench seatisometric exercise where they squat against a wall, the moon being pulled by gravity as it orbits the earth, etc.

6

A lego robot is tied to a string and swung around in a circle. What is the work done by the string while the robot travels from point A to B? I Backup link to image (opens in new tab). Positive Negative Not enough information given g

Heart (2)

Engine workcontext You work in a road test company where they seek to optimize the performance of automobile engines. More precisely, you are trying to quantify the work of the engine when the car climbs a slope. Constraints The mass of the automobile is known.The initial (down the hill) and final (up) speeds of the car are known.The distance travelled by the car is known.The road the automobile is ascending slopes upward at a known angle to the horizontal.The combined effect of road friction and air resistance has been measured previously and can be considered known and constant (call it fr).It is assumed that the motor exerts a constant force. Schematization Draw a diagram of the object that interests us. Draw your x and y axes for this object. Draw and name each force experienced by the object of interest and identify its displacement. Modelization Using the concepts of work and energy, create a model to determine the work done by the motor, given known parameters. Then test your…

Kindly share detailed explanation for each step.

QUESTION 5 If an object is confined to move along some surface, the normal force from the surface does work on the object. True False