The displacement of the book is 5 meters
Explanation:
The work done by a force when moving an object is given by:
where
:
F is the magnitude of the force
d is the displacement
is the angle between the direction of the force and the displacement
In this problem, we have:
W = 500 J is the work done by Maria
F = 100 N is the force applied by Maria
, assuming the direction of the force is parallel to the displacement
So we can rearrange the equation to solve for d, the displacement:
![d=\frac{W}{F cos \theta}=\frac{500}{(100)(cos 0)}=5 m](https://tex.z-dn.net/?f=d%3D%5Cfrac%7BW%7D%7BF%20cos%20%5Ctheta%7D%3D%5Cfrac%7B500%7D%7B%28100%29%28cos%200%29%7D%3D5%20m)
So, the book was moved 5 meters.
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Answer:
d) 289.31 m
Explanation:
Energy provided by potential energy = mgh = m x 9.8x 200 sin10.5 = 357.18m
Energy used by friction = μmgcos 10.5 x 200 = .075 x m x 9.8 x cos 10.5 x200 = 144.54 m .
Energy used by friction on plain surface = μmg x d.( dis distance covered on plain ) =.075x m x 9.8 xd = .735 m d
To equate
357.18 m -144.54 m = .735 m d
d = 289.31 m .
The kinetic theory of gases is a simple, historically significant model of the thermodynamic behavior of gases, with which many principal concepts of thermodynamics were established. The model describes a gas as a large number of identical submicroscopic particles, all of which are in constant, rapid, random motion
Answer:
- it turns electrical signals into radio waves so they can travel sometimes thousands of kilometers around the Earth or even into space and back.
Explanation:
In transmission, a radio transmitter supplies an electric current to the antenna's terminals, and the antenna radiates the energy from the current as radio waves. I HOPE THIS HELPS:)
Velocity = frequency * wavelength
v = fλ, Just pick any points on the graph for frequency f and corresponding λ. Taking the first red point at the top. λ = 6m, f = 1 Hz, v = 6 * 1, v = 6 m/s
V = 6 M/S