Answer:
7?
Explanation:
Waves – disturbances caused by the movement of energy from a source through some medium. Floating Gull- Figure 10.1 – water is not moving – only the energy is moving through the water. Transfer of energy from water particle to water particle – circular path, an orbit Orbital waves – a wave in which particles of the medium (water) move in closed circles as the wave passes. ¾ These types of waves occur between fluids of different densities as well as between air/water. These waves are Progressive Waves – move forward through their medium. Parts of the wave: Wave Crest: highest Part of the wave Wave Trough: valley between wave crests Wave Period: time it takes for a wave to move a distance of one wave length. Wave Length: horizontal distance between two successive crests (or troughs) Wave Frequency: the number of waves that pass a fixed point per second Motion of the wave is negligible after ½ wavelength in depth Figure 10.3 indicates that water molecules in the crest of a passing wave move in the same direction as the wave, but molecules in the trough move in the opposite direction.
Answer:
my name is Deepika Pandey anion I am 9 years old my father name is Dinesh Pandey my name is and my sister name is sister name is a
Answer:
its center of gravity lies over its base of support.
Explanation:
An object will be stable if its center of gravity lies over its base of support.
When an object is balanced so that a displacement lowers its center of gravity, the object is said to be in stable equilibrium.
Answer:
6.35 m/s
Explanation:
The motion of the salmon is equivalent to that of a projectile, which consists of two independent motions:
- A horizontal motion with constant speed
- A vertical motion with constant acceleration (, acceleration of gravity)
The horizontal velocity of the salmon is given by:
where
u = ? is the initial speed
is the angle of projection
Then the horizontal distance covered by the salmon after a time t is given by
Or equivalently, the time taken to cover a distance d is
(1)
Along the vertical direction, the equation of motion is
(2)
where
is the initial vertical velocity
If we substitute (1) into (2), we get:
We now that in order to reach the breeding grounds, the salmon must travel a distance of
d = 2.02 m
reaching a height of
h = 0.574 m
Substituting these data into the equation and solving for u, we find the initial speed that the salmon must have:
In te desert biome the temperature's are extreme. They could get to over 100 degrees. Plants and animals adapted to their environment over man centuries. The amount of precipation a plant or animal get can effect how they grow. Plants need lots of water so the can grow and flourish and animals need it so they can live. If the don't get enough then they could die. Th plants there need to endure long-spread drought. So they need deep roots so they can soak up lots of water. animals like the coyote go out in the night. when it's cooler. they hunt. Lizards