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
Daniel [21]
2 years ago
12

A student is transmitting sound waves through various materials. Through which metal in the table will the sound waves travel th

e fastest? Aluminum Copper Lead Brass (70% Cu, 30% Zn) 6,420 4,700 5,010 1,960 Speed of sound (m/s) O
A. Brass O
B. Aluminum
C. Copper O
D. Lead​
Physics
2 answers:
SashulF [63]2 years ago
7 0

Answer:aluminum

Explanation:

MariettaO [177]2 years ago
5 0

Answer:

Aluminum

Explanation:

promise

give  me brainlest plleaseee

You might be interested in
If the acceleration of the projective is: a = c s m/s 2 Where c is a constant that depends on the initial gas pressure behind th
Sedbober [7]

Answer:

c = 4,444.44

Explanation:

You have the following expression for the acceleration of the projectile:

a=cs   (1)

s: distance to the ground of the projectile

To find the value of the constant c you use the following formula:

v^2=v_o^2+2a \Delta s   (2)

vo: initial  velocity = 0 m/s

v: final speed = 200 m/s

Δs: distance traveled by the projectile = 3m - 1.5m = 1.5m

You replace the expression (1) into the expression (2):

v^2=2(cs)\Delta s

You do the constant c in the last equation, then you replace the values of v, s and Δs:

c=\frac{v^2}{2s\Delta s}=\frac{(200m/s)^2}{2(3m/s^2)(1.5m)}=4444.44

6 0
3 years ago
Chandra is doing an experiment to find out which type of dog food her dog prefers. The following are the steps of her experiment
ELEN [110]

Answer:

A the type of dog food because it was different and every other thing was the same.

8 0
3 years ago
A 40 g ball rolls around a 30 cm -diameter L-shaped track, shown in the figure, (Figure 1)at 60 rpm . What is the magnitude of t
levacccp [35]

Answer:

0.47 N

Explanation:

Here we have a ball in motion along a circular track.

For an object in circular motion, there is a force that "pulls" the object towards the centre of the circle, and this force is responsible for keeping the object in circular motion.

This force is called centripetal force, and its magnitude is given by:

F=m\omega^2 r

where

m is the mass of the object

\omega is the angular velocity

r is the radius of the circle

For the ball in this problem we have:

m = 40 g = 0.04 kg is the mass of the ball

\omega =60 rpm \cdot \frac{2\pi rad/rev}{60 s/min}=6.28 rad/s is the angular velocity

r = 30 cm = 0.30 m is the radius of the circle

Substituting, we find the force:

F=(0.040)(6.28)^2(0.30)=0.47 N

3 0
2 years ago
The rotational speed of earth is similar to?​
m_a_m_a [10]
Actually, the speed of the earth is the same everywhere, taking the angular speed as the valid measure of the speed
8 0
3 years ago
Which type of mirror causes light to spread out?
saw5 [17]
A convex mirror makes a reflected light rays spread out.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Kilogram is a unit of volume.<br> a. True<br> b. False
    14·1 answer
  • a jet plane traveling 1890 km/h pulls out of a dive by moving in an arc of radius 5.20km. what is planes acceleration in g's
    12·1 answer
  • An air bubble has a volume of 1.3 cm3 when it is released by a submarine 160 m below the surface of a freshwater lake. What is t
    15·1 answer
  • Which scientist developed the equation of wave mechanics? de broglie schr��dinger bohr chadwick?
    14·2 answers
  • Find the speed of a rock which is thrown off the top of a 20 m tall building at 15 m/s when it makes contact with a bird which i
    15·2 answers
  • When developing an experimental design, which action could a scientist take to improve the quality of the results?
    14·1 answer
  • Find the time taken for the journey of a car which covers a distance of 2000m in 5 m/s
    13·1 answer
  • 18. Write conversion factors (as ratios) for the number of:
    10·1 answer
  • A block of wood has mass 4kg, what is the density of the wood if the mass of water is 3kg and its volume is half that of the blo
    10·1 answer
  • A tennis player hit a .057-kg ball with a force of 40 N. The duration of the force was .05 s.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!