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Compute all parts of given question:
Question: A senior citizen walks 0.40km in 12min , going around a shopping mall.
Part I: What is her average speed in meters per second?
Part II: If she wants to increase her average speed by 30% when walking a second lap, what would her travel time in minutes have to be?
Please show all work and clearly explain each step for above question.
In a serve, a tennis player hits the ball horizontally. Neglect the effects of air resistance and the diameter of the ball. Where will the ball land if it just clears the net
A rectangular air mattress is 1.7 mlong, 0.55 m wide, and 0.05 m thick. If it has a mass of 2.0 kg, what additional mass can it support in water
A certain conductor has 7.60 1028 free electrons per cubic meter, a cross-sectional area of 4.00 ? 10-6 m2, Find the drift speed of the electrons in the conductor
three children are throwing snowballs at each other. child a throws a snowball with a horizontal velocity v. if the
If a virtual image is formed 10.0 cm along the principal axis from a convex mirror of focal length -15.0 cm, how far is the object from the mirror
A 10.0-m long string is moved up and down with simple harmonic motion with a frequency of 33 Hz. Determine the wavelength of the waves on the string
A certain star is 18.6 light years away, Find what distance is travelled according to those on the spacecraft
A lever is 5.0 m long. The distance from the fulcrum to the weightto be lifted is 1.0 m. how much force must be exerted on the lever
a positive charge of q1 is located 5.50 m to the left of a negative charge -q2. the charges have different magnitudes.
A 3000 kg truck traveling north at 30 km/h turns east and accelerates to 48 km/h. What is the change in the truck's kinetic energy
in a race john runs 1.00 mile in 4.02 min mounts a bicycle and rides back to his starting point which is also the
A 23.0 kilogram small box of textbooks rests on a loading ramp that creates an angle = 36deg. with the horizontal. Find what is the normal force on the box
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