# VBBV

### PEC

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MATLAB enthusiast , Mechanical engineer (MeMe) :-)

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Solved

Rainbow matrix

Create a "rainbow matrix" as described in the following examples Input = 3 Output = [ 1 2 3 2 3 2 ...

3 days ago

Solved

Calculate area of sector

A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

3 days ago

Solved

radius of a spherical planet

You just measured its surface area, that is the input.

4 days ago

Solved

Given a square and a circle, please decide whether the square covers more area.

You know the side of a square and the diameter of a circle, please decide whether the square covers more area.

4 days ago

Solved

Perimeter of a semicircle

Given the diameter d, find the perimeter of a semicircle

4 days ago

Solved

Convert Volume Mixing Ratio to Density

The partial pressure of a constituent gas species of the atmosphere can be expressed in parts per million by volume. For exampl...

4 days ago

Solved

Partial Pressure of Water Vapor from Relative Humidity

Buck (1996, 1981) published the following constants for the saturation pressure of water*: 6.1121 (mb) The saturation pressur...

4 days ago

Solved

Pressure for a given Above Sea Level Altitude

For altitudes up to the stratosphere (around 11 km above mean sea level), the air pressure can be estimated from: with where...

4 days ago

Solved

Molar Air Density from Temperature and Pressure

The molar density of air can be found from the Temperature and Pressure using the ideal gas law. where the Molar density STP ...

4 days ago

Solved

Current through resistor

Three resistors (R2, R3, R4) are connected in parallel as shown in the figure. If this combination is connected in series with ...

5 days ago

Solved

Basic Mathematics 8

A robot is extending its arm and attempting to reach a game piece that is X” away and Yg ” off the ground. The base of the arm i...

5 days ago

Solved

Calculate Parallel Resistance

Three resistors connected in parallel have resistances R1, R 2, and R 3, respectively. Return the total resistance R total of ...

5 days ago

Solved

Find the force required to support a lever

Students are designing a robot that will lift a block to the equilibrium position for transport to the scoring area. They have d...

5 days ago

Solved

Find the mass of a rod

Determine the mass (in grams) of a rod of length L cm if it is in equilibrium per the diagram. In the diagram L1, L2, L3 are di...

5 days ago

Solved

Calculate load on arm 1

A robot is designed with a motor directly attached at the pivot point of the lifting arm. The L inch arm has a weight of W1 lbs...

5 days ago

Solved

Magnitude of Balancing Force

A box weighing W1 pounds is placed where its center of mass is located d1 ft from the fulcrum. A balancing force is placed at th...

5 days ago

Solved

Air Mass to Star for an Observer at Mean Sea Level

Air mass is a measure of how much atmosphere light from a source above the atmosphere (eg sun, planet, star) has to travel throu...

6 days ago

Solved

Predict Cricket Stridulation Rate from Air Temperature

Stridulation is the process that creates a cricket's “chirp” by rubbing their wings or legs. According to the Old Farmer's Alma...

6 days ago

Solved

Find Air Temperature from Cricket Stridulation Rate

Stridulation is the process that creates a cricket's “chirp” by rubbing their wings or legs. According to the Old Farmer's Alma...

6 days ago

Solved

ベクトルの値が増加しているかを調べよう

ベクトルの値が増加している場合 (ベクトルの各要素が前の要素よりも大きい場合) には true を、そうでない場合には false を返すようなコードを書いてみましょう。 例: 入力が x = [-3 0 7] のとき、 関数の...

7 days ago

Solved

文字列の最初と最後の文字だけ抜き出しましょう。

文字列の最初と最後の文字をつなげて返すような関数を作成しましょう。 もし文字が一つしかない場合、その文字は最初と最後の文字のため、関数はその文字を二回返すようにしておきましょう。 例: stringfirstandlast('borin...

7 days ago

Solved

対称で、n*2n のサイズの行列を作成しましょう

サイズが n*2n の "mirror" 行列（対称行列）を作成しましょう。 例: n=2 の場合、以下のような出力を返します。 m = [ 1 2 2 1 1 2 2 1 ] n = 3 の場合、以下のよう...

7 days ago