d = distance to which the grocery cart is pushed = 18 m
f = frictional force = 37.5 N
θ = angle of force below the horizontal = 27.5 deg
W = gravitational force in downward direction
Θ = angle between gravitational force in down direction and displacement in horizontal direction = 90
U = work done on the cart by gravitational force
work done on the cart by gravitational force is given as
U = W d CosΘ
inserting the values
U = W (18) Cos90
U = 0 J
Answer:
1) 130, 000 J
2) 1 J
Explanation:
1)
Work done is product of force in Newtons and distance in meters
W=Fd
Given an average force of 5,200 N and distance of 25 m then we evaluate that
Work done=5200*25=130, 000 Nm or Joules
2)
Similarly, for the second question, given force of 1N and distace of 1 m then the work done will be
W=1*1=1 J
Speed =dist./time
=73.4/5
=14.68 km/hr
Answer:
Correct answers:
Explanation:
• It is a satellite that collects data about rain and snow.
GPM is part of NASA's Earth Systematic Missions program and its function is to track precipitation from space with satellites and to provide accurate information of the time, place an amount of rain or snow anywhere in the world.
• Its orbit covers 90 percent of Earth's surface.
GPM has unique perspective on measuring precipitation from space because of their collected satellite retrievals.
• The sensors measure microwaves.
GPM Microwave Imager (GMI) is a sensor that observes the microwave energy emitted by the Earth and atmosphere, so it improves the accuracy of rain and snowfall estimates.
Answer:
Forces do not have a specific direction.
