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Sam jogs for 15 minute at 240 m/min, walk the next 10 minute at 90m/min, rests for 5 minute, and jogs back to where she started at 180 m/min.
a. Plot a velocity time graph for Sam's exercise run.
b. Calculate the area under the curve for the first 15 minute. What does this represent?
c. Calculate the total distance traveled by Sam?
d. Find the Sam's displacement from start to finish?
a lens with a focal length of 15 cm is placed 45 cm in front of a lens with a focal length of 5.0 cm. how far from the
A 0.700 kg ball is on the end of a rope that is 1.30m in length.The ball and rope are attached to a pole and the entire apparatus,including the pole, rotates about the pole’s symmetry axis.The rope makes an angle of 70.0 degrees with respect to theve..
two polarizers are oriented at 72 degress to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted
A 54-kg skater initially at rest throws a 3.0-kg medicine ball horizontally to the left. Determine the acceleration of the ball during the throw
In an experiment designed to measure the strength of a uniform magnetic field produced by a set coils, the electron are accelerated from rest through a potential difference of 350V, and the beam associated with the electrons is measured to have a ..
A satellite has a mass of 5825 kg and is in a circular orbit 4.34 × 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
a what is your average speed from houston back to san antonio?nbspkmhb what is your average speed for the entire
A 450g rubber ball is dropped from 2.0m above the floor. After the bounce, the ball only rises to a height of 1.5m above the floor. find the amount of heat generated when the ball hits the floor
a pencil 15.7 cm long is released from a vertical position with the eraser end resting on a table. the eraser does not
a plane diving with constant speed at an angle of 49.0deg with the vertical releases a projectile at an altitude of 510
A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in 1.40 s. What is the friction force acting on the bag
A freezer is used to freeze 3.0 Lof water completely into ice. The water and the freezer remain at aconstant temperature of T = 0°C. Determine the change in the entropy of the water
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