Si se suelta una moneda desde lo alto de una casa, su velocidad inicial es <br> 4 puntos

The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a honeybee is 0.000100 kilograms, what is the weight of th

Yuliya22 [10]

Answer:

0.00098 N

Explanation:

The weight of an object is given by:

$W=mg$

where

m is the mass of the object

g is the gravitational acceleration on the planet

In this problem, we have:

$m=0.0001 kg$ is the mass of the honeybee

$g=9.8 m/s^2$ is the acceleration due to gravity

Substituting into the equation, we find:

$W=mg=(0.0001 kg)(9.8 m/s^2)=0.00098 N$

4 0

3 years ago

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If the magnets are brought close together, they will

murzikaleks [220]

It depends on which side. Opposites attract, so north and south would attract to each other and collide, while north and north or south and south would go away from eachother.

7 0

3 years ago

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One thing a person can do to reduce his or her water footprint is to use less water every day. If each American was to reduce hi

Gwar [14]

Answer:

Annual water footprint for a typical American in m3 − 2×365 m3

Explanation:

We need the annual water footprint for a typical American first. Then, if each American was to reduce his or her daily water use by 2 m3, this would mean they would reduce his or her annual water use by 365×2 m3, since there are 365 days in a year, and this is the quantity that one needs to substract from the given annual water footprint for a typical American, also measured in m3.

5 0

3 years ago

1) A piano tuner is testing a wire currently under 2000 N tension. The wire is 1.5 m long and has a mass of 20 g. If the tuner's

m_a_m_a [10]

1.

Answer:

N = 77

Explanation:

1) As we know that Tension in the wire is given as

T = 2000 N

now mass per unit length of the wire is given as

$\frac{m}{L} = \frac{20 \times 10^{-3} kg}{1.5 m}$

$\frac{m}{L} = 0.013 kg/m$

Now fundamental frequency is given as

$f_o = \frac{1}{2L}\sqrt{\frac{T}{m/L}}$

$f_o = \frac{1}{2\times 1.5}\sqrt{\frac{2000}{0.013}}$

$f_o = 129 Hz$

now highest frequency is given as 10000 Hz

so total harmonics is given as

$N = \frac{10000}{129}$

$N = 77$

2.

Answer:

D) 7.14 Hz

Explanation:

As we know that

speed = (frequency)(wavelength)

given that

speed = 400 m/s

wavelength = 28 m

so frequency is given as

$f = \frac{400}{28}$

$f = 14.3 Hz$

now if wavelength is doubled then we will have

$wavelength = 56 m$

new frequency will be

$f = \frac{400}{56}$

$f = 7.14 hz$

3.

Answer:

Number of nodes = 4

A) 4

Explanation:

Number of nodes = number of harmonics + 1

so here we know that

number of harmonics = 3

Number of nodes = 3 + 1

Number of nodes = 4

4.

Answer:

C) 35.1 Hz

Explanation:

fundamental frequency in an organ pipe closed at one end is given as

$f = \frac{v}{4L}$

here we know that

v = 345 m/s

L = 2.46 m

now we have

$f = \frac{345}{4(2.46)}$

$f = 35.1 Hz$

5.

Answer:

A) 570

Explanation:

Number of harmonics is given as

$N = \frac{maximum :\frequency}{fundamental\: frequency}$

$N = \frac{20,000}{35.1}$

$N = 570$

6.

Answer:

$v = 37.12 m/s$

Explanation:

For fundamental frequency we know that

$f_o = \frac{v}{2L}$

here we know that

$f_o = 58 Hz$

$L = 32 cm$

now we have

$58 = \frac{v}{2(0.32)}$

$v = 37.12 m/s$

7 0

3 years ago

Sample Question: 4

Fantom [35]

The gravitational potential energy of the mass in increased approximately by 490 J

Gravitational Potential energy formula is

P=mgh

where mass is given my m= 5 Kg

g is the gravitational force i.e. 9.8 $m/s^{2}$

h is the height above the ground that is given by 10 m

P = 5*9.8*10

P = 490 J

What is gravitational potential energy?

The potential energy that a huge item has in relation to another massive object due to gravity is known as gravitational energy or gravitational potential energy. When two objects descend toward one another, the potential energy associated with the gravitational field is released (transformed into kinetic energy).

To learn more about gravitational potential energy

brainly.com/question/15978356

#SPJ9

5 0

1 year ago

Si se suelta una moneda desde lo alto de una casa, su velocidad inicial es 4 puntos