3 years ago

Will give correct answer brainliest

Physics

1 answer:

garri49 [273]3 years ago

5 0

Answer:

Explanation:

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If the primary source of atmospheric thermal energy on Earth is energy from the Sun, what conclusion can be made from the diagra

Tamiku [17]

Answer:B

Explanation:

Because the Earth's core isn't moving around earth therefore the center of Earth will forever be warm

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3 years ago

An average man is 80 k (800 N) and the area of the shoes he is wearing is 0.0092 m2. What is the pressure he is exerting on the

S_A_V [24]

Answer:

P = 86956.52 Pa

Explanation:

Data:

F = 800 N
A = 0.0092 m²
P = ?

Use the formula:

$\boxed{\bold{P=\frac{F}{A}}}$

Replace and solve:

$\boxed{\bold{P=\frac{800\ N}{0.0092\ m^{2}}}}$

$\boxed{\bold{P=86956.52\ Pa}}}$

The pressure it exerts on the ground is <u>86956.52 Pascal.</u>

Greetings.

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3 years ago

To what tension (in newtons) must you adjust the screw so that a transverse wave of wavelength 3.33 cm makes 621 vibrations per

PilotLPTM [1.2K]

Answer:

T=9.4 N

Explanation:

We are given that

Mass of wire,m=16.5 g= $\frac{16.5}{1000}$ kg

1 kg=1000g

Length of wire,l=75 cm= $75\times 10^{-2}$ m

1 m=100 cm

Wavelength of transverse wave= $\lambda=3.33 cm=3.33\times 10^{-2}$ m

Frequency= $621 Hz$

Mass per unit length= $m_l=\frac{m}{l}=\frac{16.5}{1000\times 75\times 10^{-2}}=0.022 kg/m$

$\nu=\frac{v}{\lambda}$

$v=\nu \lambda$

Where $\nu=$ frequency of wave

$\lambda$ =Wavelength of wave

Speed of wave=v

Using the formula

$v=3.33\times 10^{-2}\times 621=20.7m/s$

$v=\sqrt{\frac{T}{m_l}}$

$v^2=\frac{T}{m_l}$

$T=v^2m_l$

Using the formula

$T=(20.7)^2\times 0.022=9.4N$

Hence, the tension,T=9.4 N

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4 years ago

Given: Q1 = 3.0 × 10-5 C

Mariulka [41]

$F=k\dfrac{Q_1Q_2}{r^2}= \\ \\ =9\cdot 10^9\cdot \dfrac{3\cdot 10^{-5}\cdot 4\cdot 10^{-5}}{9}=...$

You just do the calculations.

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3 years ago

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What is 150 mm expressed in diameters

DaniilM [7]

"Diameter" is not a unit of length or distance.

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3 years ago