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FromTheMoon [43]
3 years ago
8

1. Which of the choices will make a brass band?

Physics
1 answer:
yuradex [85]3 years ago
4 0

Explanation:

1.

C. Bamboo woodwind instrument

2.

C. Flute

3.

A. Bass Drum

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For an object that floats in a liquid, which of the following statements is true? Group of answer choices The specific gravity o
SVEN [57.7K]

Answer:

Explanation:

Object is Floating in a liquid

weight of object is equal to weight of displaced fluid

i.e.

\rho _oVg=\rho _mV'g

i.e.\rho _oV=mass\ of\ object

\rho _mV'=mass\ of\ liquid\ displaced

where V and V' is the volume of object and volume of object inside the liquid.

therefore mass of liquid displaced must be equal to mass of object                          

8 0
3 years ago
Say the tortoise and the hare are racing. If the tortoise moves straight
Rina8888 [55]

Explanation:

It's displacement would be negative

displacement is a vector quantity.

'Backwards', we can assume, would be negative.

and forwards, positive. So going backwards would mean a negative displacement.

5 0
3 years ago
A hot air balloon traveled 3 hours at a speed of of 450 km/hr. What distance did it travel?
erastova [34]

Answer:

it traveled 1350 kilometers or 839 miles

Explanation:

You just have to do 450 times three because its 3 HOURS and 450 kilometers per HOUR.

3 0
3 years ago
Suppose you are spinning a child around in a circle by her
Marina86 [1]

Answer:

25 N

Explanation:

Sum of the forces on the child in the radial direction:

∑F = ma

T = m v² / r

T = (25 kg) (1 m/s)² / (1 m)

T = 25 N

7 0
3 years ago
Consider the image above. Vi = the initial velocity and Vf = the final velocity. Is there acceleration? Explain your answer.
Law Incorporation [45]
D) Yes. Even though the initial and final velocities are the same, there is a change in direction for the ball.
Acceleration (a) = change in velocity (v) over time (t), let's consider moving right is (+) and moving left is (-)
a = (vf - vi)/t = (-5 - +5)/t
a = (-10)/t
So even though the number looks the same from vi to vf, there actually is a negative acceleration of 10m/s/s.
8 0
3 years ago
Read 2 more answers
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