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3 years ago

7

Explain why the surface of Venus is hotter than the surface of Mercury

2 answers:

solong [7]3 years ago

7 0

Venus becomes hotter because it has a very thick atmosphere. An atmosphere is a layer of gasses surrounding a planet or a moon. An atmosphere stops heat from escaping. Venus' atmosphere is much thicker than Earth's. It is mostly made of a gas that ic called carbon dioxide.

Hitman42 [59]3 years ago

4 0

<span>Venus is hotter due to the greenhouse effect: Venus has an atmosphere about ninety times thicker than that of Earth, and made almost entirely of carbon dioxide, which is one of the gasses that causes the greenhouse effect on Earth.</span>

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A firecracker breaks up into two pieces , one has a mass of 200 g and files off along the x –axis with a speed of 82.0 m/s and t

Readme [11.4K]

Answer:

A) 21.2 kg.m/s at 39.5 degrees from the x-axis

Explanation:

Mass of the smaller piece = 200g = 200/1000 = 0.2 kg

Mass of the bigger piece = 300g = 300/1000 = 0.3 kg

Velocity of the small piece = 82 m/s

Velocity of the bigger piece = 45 m/s

Final momentum of smaller piece = 0.2 × 82 = 16.4 kg.m/s

Final momentum of bigger piece = 0.3 × 45 = 13.5 kg.m/s

since they acted at 90oc to each other (x and y axis) and also momentum is vector quantity; then we can use Pythagoras theorems

Resultant momentum² = 16.4² + 13.5² = 451.21

Resultant momentum = √451.21 = 21.2 kg.m/s at angle 39.5 degrees to the x-axis ( tan^-1 (13.5 / 16.4)

5 0

3 years ago

Two long, parallel wires separated by 2.00 cm carry currents in opposite directions. The current in one wire is 1.75 A, and the

Natasha_Volkova [10]

The force per unit length between the two wires is $6.0\cdot 10^{-5} N/m$

Explanation:

The magnitude of the force per unit length exerted between two current-carrying wires is given by

$\frac{F}{L}=\frac{\mu_0 I_1 I_2}{2\pi r}$

where

$\mu_0 = 4\pi \cdot 10^{-7} Tm/A$ is the vacuum permeability

$I_1, I_2$ are the currents in the two wires

r is the separation between the two wires

For the wires in this problem, we have

$I_1 = 1.75 A$

$I_2 = 3.45 A$

r = 2.00 cm = 0.02 m

Substituting into the equation, we find

$\frac{F}{L}=\frac{(4\pi \cdot 10^{-7})(1.75)(3.45)}{2\pi (0.02)}=6.0\cdot 10^{-5} N/m$

Learn more about current and magnetic fields:

brainly.com/question/4438943

brainly.com/question/10597501

brainly.com/question/12246020

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#LearnwithBrainly

4 0

3 years ago

Anything that has volume or mass

irinina [24]

Any object, except antimatter, :)

8 0

3 years ago

Type of force that holds the nucleus of an atom together

Kamila [148]

Answer:

Nuclear Forces

Explanation:

The type of force that holds the nucleus of an atom together is called Nuclear Forces.

7 0

3 years ago

2. A mixture of mercury and copper is an example of

Olin [163]

Answer:

b

Explanation:

liquid and solid

hope that helps :)

4 0

3 years ago

Read 2 more answers