You pull a box with a constant force across a frictionless table using an attached to
tionless...
Physics, 06.11.2019 20:31, NabzDayer5214
You pull a box with a constant force across a frictionless table using an attached to
tionless table using an attached rope held horizontally. if
you then pull the box with the same force but now at an angle to the horizontal (the box
now at an angle to the horizontal (the box remains flat on the
table), does the acceleration of the box:
a. remain the same
b. increase
c. decrease
d. there is no acceleration
e. the angle needs to be known
i know that answer is c but can someone explain why you
Answers: 1
Physics, 22.06.2019 00:50, Amandarobersonn
While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.
Answers: 3
Physics, 22.06.2019 10:20, yofavvlele
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i. e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
Physics, 22.06.2019 13:50, heatherlemaster
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
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