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
Ugo [173]
3 years ago
12

One student bangs two bricks together

Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

This could be done if a stop watch is used to calculate the time taken to hear the echo and a rule should be used to calculate the distance between the bricks and the wall. Then divide distance by time

Explanation:

I hope this is what you need

PLEASE MAKE ME BRAINLIEST

You might be interested in
What is the size of the smallest vertical plane mirror in which a 6 ft tall person standing erect can see her full-length image?
Alex Ar [27]

Answer:

3 ft

..................

5 0
3 years ago
Which waves can u see
NemiM [27]

light waves. the other waves like gamma rays or infrared waves or radio waves are all not visible to the eye. light is the only thing out of those you can see.

3 0
4 years ago
Read 2 more answers
The machine in the figure is ideal and an effort force of
DENIUS [597]

Answer:

1.5 m

Explanation:

Let the distance from the box to the pivot be c.

Let the distance from the pivot to the effort be y.

From the question given above, the following data were obtained:

Effort force (Fₑ) = 7 N

Force of resistance (Fᵣ) = 14 N

Distance from the box to the pivot (c) = 0.75 m

Distance from the pivot to the effort (y) =?

Clockwise moment = Fₑ × y

Anticlock wise moment = Fᵣ × c

Clockwise moment = Anticlock wise moment

Fₑ × y = Fᵣ × c

7 × y = 14 × 0.75

7 × y = 10.5

Divide both side by 7

y = 10.5 / 7

y = 1.5 m

Therefore, the distance from the pivot to the effort is 1.5 m

5 0
2 years ago
Find the final temperature of 375 grams of tea (c = 4.184 J/g°C) if its initial temperature is 95°C just before it is placed in
Minchanka [31]

Answer:

the final temperature of the tea is 7.39⁰C.

Explanation:

Given;

mass of the tea, m = 375 g

specific heat capacity of the tea, C = 4.184 JJ/g°C

initial temperature of the tea, t₁ = 95°C

the final temperature of the tea, t₂ = ?

Energy lost by the refrigerator, Q = 137,460 J

The energy lost by the refrigerator is given by the following formula;

-Q = mc(t₂ - t₁)

-137,460 =375 x 4.184(t₂ - 95°C)

-137,460 = 1569(t₂ - 95°C)

t_2-95 = \frac{-137,460}{1569} \\\\t_2-95 = -87.61\\\\t_2 = -87.61 + 95\\\\t_2 = 7.39 \ ^0 C

Therefore, the final temperature of the tea is 7.39⁰C.

4 0
3 years ago
Which of the following is true about a planet orbiting a star in uniform circular motion? A. The direction of the velocity vecto
Luda [366]
<span>As it is uniform circular motion therefore speed is constant. Therefore we can rule out option B. Also in circular motion the direction of velocity vector changes therefore velocity can't be constant. Therefore option B is incorrect as well. Also centripetal acceleration is always towards the center so option D is wrong as well. That implies option A is correct.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • A DC voltmeter may be used directly to measure a) frequency b)polarity c) power factor d) power
    9·1 answer
  • The current limiting property of an inductor is called _____
    9·2 answers
  • The copper wire and bulb is connected in a series with 220 V electric supply. Why only an electric bulb glows where as the coppe
    6·1 answer
  • The evaporation of the oceans surface water as part of the water cycle is caused by
    12·1 answer
  • Elabora una tabla, como la del ejemplo, con los resultados obtenidos en los test que desarrollaste en actividades anteriores. Lu
    9·1 answer
  • On June 9, 1983, the lower part of the Variegated Glacier in Alaska was observed to be moving at a rate of 64 m per day. What is
    8·1 answer
  • How microwave tower work?​
    10·1 answer
  • The amount of energy absorbed by a vehicle in an impact is related to __________ A. the direction of the impact. B. the design o
    11·2 answers
  • I'll make you brainliest! EaSyQuEsTiOn pleaze ASAP hurry! Make you brainliest Promise!!!
    13·1 answer
  • A train traveling at 48 m/s begins to slow down as it approaches a bend in the tracks. If it travels around the bend at a speed
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!