1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sonja [21]
2 years ago
8

Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that conve

rts electric energy to sound energy. Which device is Jeff’s father looking for?
A.
switch
B.
motor
C.
buzzer
D.
bulb
E.
battery
Physics
1 answer:
LekaFEV [45]2 years ago
8 0

<u>Answer:</u>

The correct answer option is C. buzzer.

<u>Explanation:</u>

We know that Jeff's father needs to get a device from his workshop that converts electrical energy to sound energy.

So from the given options, buzzer is the best option Jeff's father can install in his house's security system.

An electric buzzer converts an electrical oscillating voltage into a sound output. In other words, the electrical pulses are converted into sound vibrations.

You might be interested in
A girl throws a tennis ball upward with an initial velocity of 4 m/s. What is the maximum displacement of the ball?
Jobisdone [24]

Answer:

0.82 m

Explanation:

The ball is in free fall - uniform accelerated motion with constant acceleration downward, a=g=-9.8 m/s^2 (acceleration of gravity). So we can use the following suvat equation to solve the problem:

v^2-u^2=2as

where

v is the final velocity

u = 4 m/s is the initial velocity

a is the acceleration

s is the displacement

At the maximum displacement, v = 0 (the velocity becomes zero). Substituting and solving for s, we find:

s=-\frac{u^2}{2a}=-\frac{4^2}{2(-9.8)}=0.82 m

8 0
2 years ago
PLZ help 10 points!!! space question!
irga5000 [103]

Answer:

B. They are smaller and made of rocky material

Explanation:

i think it's right??

5 0
2 years ago
A plane is traveling at 300 m/s. How far will it travelin 1 hour?
Airida [17]

Answer:

1080000

Explanation:

300 x 60s=18000m/minute

18000 x 60min=1080000m/h

Explanation:

3 0
2 years ago
John is carrying a shovelful of snow. The center of mass of the 3.00 kg of snow he is holding is 15.0 cm from the end of the sho
Andru [333]

Answer:

James is correct here as the force of hand pushing upwards is always more than the force of hand pushing down

Explanation:

Here we know that one hand is pushing up at some distance midway while other hand is balancing the weight by applying a force downwards

so here we can say

Upwards force = downwards Force + weight of snow

while if we find the other force which is acting downwards

then for that force we can say that net torque must be balanced

so here we have

F_{down} L_1 = W_{snow} L_2

so here we have

F_{down} = \frac{L_2}{L_1} (W_{snow})

so here we can say that upward force by which we push up is always more than the downwards force

8 0
3 years ago
This is physics class, plzzz help ! 86.72 m to cm
Vaselesa [24]

Answer:

8672

Explanation:

multiply the length value by 100

5 0
2 years ago
Other questions:
  • Scientists can measure the amounts of different elements found in the universe. Which element's concentration in the universe is
    5·1 answer
  • The average kinetic energy of particles in an object is also known as _________.
    8·1 answer
  • A stone that is dropped freely from rest traveled half its total height in the last second. With what velocity will it strike th
    9·2 answers
  • A cylindrical test specimen with a 15-mm diameter is tested axially in tension. A 0.58 mm elongation is recorded in a length of
    6·1 answer
  • Identify the best measure of center for each visual representation of a data set.
    7·1 answer
  • Earths lithosphere is made up of large plates that are in constant motion
    15·1 answer
  • **URGENT** Now lets look at a skydiver who jumps out of a plane that has a forward velocity of 40 m/s. ignore air resistance. Af
    14·1 answer
  • What is the smallest particle of an element that still retains of that element
    9·1 answer
  • I have no idea so i'm screwed please help me
    6·1 answer
  • Meet join if yip want to <br><br>Code is; axe-euvr-wey<br><br>Pls don’t flag
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!