Evaporation is the process through which a liquid turns into a gas. It is how water gets from the surface of the Earth to the atmosphere.
The dog whistle is manipulating frequency. This is further explained below. Option B is correct.
The sound of a high-pitched sound is harsh and has a high pitch. Examples are:
In conclusion, for a high pitch, we alter the frequency.
Read more about frequency
Answer:
Frequency
Explanation:
(I believe don't count me on this) Amplitude is the wave height otherwise known as how loud it is or the maximum displacement of vibrating particles
The minimum dimensions for the rear-view mirror should be a height of 0.890 m and a width of 1.3 m.
In order for the driver to be able to see the entire width and height of the rear window in the rear-view mirror without moving their head, the mirror should have minimum dimensions that allow for this visibility. Let's calculate the minimum height and width required for the rear-view mirror.
Height of the mirror:The mirror should be half the height of the driver, which is given as 1.715 m at the top and 0.825 m at the bottom. Therefore, the height of the mirror should be 0.890 m (1.715 m - 0.825 m).Width of the mirror:The mirror should be wide enough to capture the entire width of the rear window. The width of the rear window is given as 1.3 m, so the width of the mirror should be at least 1.3 m. Therefore, the minimum dimensions of the rear-view mirror should be a height of 0.890 m and a width of 1.3 m.#SPJ12
Answer:
Interchanging the poles of the magnet
Reversing the direction of the applied current
Explanation:
ball drops 45m under g=10m/s/s
45=1/2x10xt^2 ... application of kinematic equaion from rest
90/10=t^2
t=3
24.0 m in 3 secs => 8m/s no air resistance
The ball's initial speed is calculated using the principles of projectile motion. First, the time it takes for the ball to hit the ground is found using the vertical distance and acceleration due to gravity. the initial speed to be approximately 7.9 m/s.
The problem describes a case of projectile motion, a common topic in physics. Since the ball is thrown horizontally, the initial vertical velocity of the ball is zero. We're given that the horizontal distance covered is 24.0 m and the vertical distance is 45.0 m.
Because the horizontal and vertical motions are independent, we can use the equations of motion to solve the problem. First, we have to find the time it takes for the ball to hit the ground. Using the equation of motion
"y = 0.5*g*t²",
where y = 45 m is the vertical distance, g = 9.8 m/s² is the acceleration due to gravity, and t is the time in seconds. Solving for t gives us the square root of (2*y/g), which is approximately 3.03 seconds.
Second, we use this time to find the initial speed of the ball. The horizontal distance covered x = 24.0 m is equal to the product of the time it's been travelling and its initial horizontal speed (v = x/t). Using the time from the previous step, we can find the initial speed to be approximately 7.9 m/s.
#SPJ2
Answer:
The loss of balance while standing on a bus often is due:
Explanation:
The third Newton law from Latin says: "Action is always opposed an equal reaction: or the two bodies on each other are always equal, and in opposite directions," which means that when a force is exercised in a direction by a body, the other body in the interaction exercises a force in the other direction. In the case of the person on the bus, when the bus makes a force forward, your body makes a force in the other direction (back), in a similar case, when the bus stops, its force in directed to the back, in that time your body make a force forward, in each case your body can lose balance because your center of gravity is directed in the same direction in which the opposite force to that of the bus moves.
B.) Beaches change little over time as waves follow the same patterns year after year.
C.) Beaches change little over time as wind patterns stay the same.
D.) Beaches change little over time as waves move further up the shore.