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kvv77 [185]
4 years ago
14

Can you think of some places where we use electric buzzers

Physics
1 answer:
hjlf4 years ago
3 0

Answer:

To unlock a door and indicate to the person that the door is now unlocked

Explanation:

Schools all have doors locked. Visitors/parents need to press a button. That creates a buzz sound in the office, secretary presses a button to unlock the door. The person trying to enter the school hears a buzz and the secretary telling them to enter the building.

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A student is playing with a radio-controlled race car on the balcony of a sixth-floor apartment. An accidental
pentagon [3]

Answer:

No, it is independent

Explanation:

As we know that car is moving horizontally

so the vertical component of the speed is zero initially

so in order to hit the ground we know that

\Delta y = v_y t + \frac{1}{2}at^2

so here we know that

h = 0 + \frac{1}{2}gt^2

on solving above equation for time

t = \sqrt{\frac{2h}{g}}

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8 0
4 years ago
What would be the projectile's initial speed?
zalisa [80]

Math is the process of using the given information, along with
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8 0
4 years ago
Pepe and alfredo are resting on an offshore raft after a swim. they estimate that 3.00 m separates a trough and an adjacent cres
Orlov [11]
The velocity (V) of a wave is the frequency (F) times the wave length (lambda):

     V =  F * lamda

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=> lamba = 2 * 3.00 m = 6.00 m

F = number of waves / time = 13.0 waves / 20.2 s

Now you can plug in the values in the formula of V:

V = 6.00 m/wave* 13.0 waves / 20.2 s = 3.86 m/s

Answer: 3.86 m/s
8 0
3 years ago
Which of earths layers is made up of liquid metal
just olya [345]
The mantle. It is also the largest earth layer, making up about 84% of the earth. 
4 0
3 years ago
Read 2 more answers
If you graph the average velocity (y-axis) vs. the elapsed time (x-axis), what
Aleks [24]

Answer:

a diagonal line on the graph

Explanation:

the slope would be constant at an increasing rate

y=x

uniform= increasing at a constant rate

4 0
4 years ago
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