Answer:
W = 7591.56 J
Explanation:
given,
distance of the box, d = 37 m
Force for pulling the box, F = 217 N
angle of inclination with horizontal,θ = 19°
We know,
Work done is equal to product of force and the displacement.
W = F.d cos θ
W = 217 x 37 x cos 19°
W = 7591.56 J
Hence, the work done to pull the box is equal to W = 7591.56 J
The circular but relatively flat portion of the galaxy is the Disk
Answer:
here , hope it helps
Explanation:
However, though the force of gravity remains constant, the tension resulting from gravity also changes. When a swinging object isn't at the bottom of its arc (its equilibrium point), gravity is pulling directly downward, but tension is pulling up at an angle.
The normal force and the force of gravity (weight) of the block are balanced, so the net force is all from the tension directed to the right. Hanging mass: On the right, tension pulls the block upwards while gravity pulls it downwards, so the net force must be the difference between them.
Answer:2t
Explanation:
Given
Jason throwing watermelon at speed v and it spend t time in air
time to reach max height
0=v-gt'
and time to reach bottom is also t'
t=2t'
For guy throws his watermelon at speed 2v
So total time in air will be
t''=2t
Some physical properties of matter include viscosity (maple syrup is more viscous than oil), color (an apple can be red, while a watermelon is green), opacity (a computer screen is more opaque than a window), and freezing point (ice with salt has a lower freezing point than plain ice).
Some chemical properties include pH (milk of magnesia v. wine), and heat of combustion.
Hope that helped you!