logo

Crowdly

Browser

Add to Chrome

Physics (bio) / Fisika (bio) - 154

Looking for Physics (bio) / Fisika (bio) - 154 test answers and solutions? Browse our comprehensive collection of verified answers for Physics (bio) / Fisika (bio) - 154 at stemlearn.sun.ac.za.

Get instant access to accurate answers and detailed explanations for your course questions. Our community-driven platform helps students succeed!

The maximum velocity of a particle executing simple harmonic motion with an amplitude of 6 cm, is 3.14 m/s. What is the period of oscillation?

Die maksimum spoed van ’n deeltjie wat eenvoudige harmoniese beweging uitvoer met ’n amplitude van 6 cm, is gelyk aan 3.14 m/s. Wat is die periode van die ossillasies?

0%
0%
0%
0%
0%
View this question

Two objects of equal mass hang from independent springs of unequal spring constant and oscillate up and down. The spring of greater spring constant must have

Twee voorwerpe het gelyke massas maar hang aan vere met verskillende veerkonstantes. Die veer met die groter veerkonstante sal

0%
100%
0%
0%
0%
View this question

'n Klavierstemmer hoor 'n swewing maksimum elke 2.15 sekondes wanneer hy 'n snaar probeer instem teen 'n verwysingsnoot van 219 Hz. Hoever is die snaar af van die gewenste frekwensie (in Hz)?

A piano tuner hears one beat every 2.15 s when trying to adjust two strings, one of which is sounding 219 Hz. How far off in frequency is the other string?

0%
0%
0%
0%
0%
View this question

'n Gespanne snaar vertoon 8 ewe groot segmente in 'n staande golf patroon wanneer dit teen 'n frekwensie van 425 Hz ossilleer. Welke frekwensie is nodig om dit in 'n staande golfpatroon met 9 segmente te laat ossilleer?

A stretched string is observed to have 8 equal segments in a standing wave driven at a frequency of 425 Hz.  What driving frequency will set up a standing wave with 9 equal segments?

0%
100%
0%
0%
0%
View this question

'n Klankversterker se uitset is gespesifiseer as 71.0 W. Bereken die maksimum hardheid, β wat dit op 'n afstand 5.79 meter vanaf 'n luidspreker kan veroorsaak. Die drempel van hoorbaarheid is 10-12 Wm-2.

An amplifier is rated at 71.0 W. Calculate the maximum loudness, β in decibels you would expect at a point 5.79 m from a loudspeaker connected to the amplifier. The threshold of hearing is 10-12 Wm-2.

0%
0%
0%
0%
100%
View this question

How long will it take a capacitor in a charging RC-circuit to charge to 63% of the maximum possible potential difference?

Hoe lank sal dit ’n kapasitor in ’n laai RC-stroombaan neem om tot 63% van sy maksimum moontlike potensiaalverskil te laai?

View this question

 

Time/Tyd (s)

 (Volt)

0

9.00

26.66

5.27

53.33

3.09

80.00

1.81

106.6

1.06

133.3

0.625

160.0

0.366

186.6

0.215

213.3

0.126

240.0

0.0740

 

Consider the table above. It shows the potential difference across a resistor (V subscript R ) as a function of time in a charging RC-circuit. Suppose that the empirical equation which describes the data is given by: V subscript R space equals space a space e to the power of b t end exponent , where  a and b  are constants.

Use the data in the table shown above and determine the value of the constant  b.

Note: use Excel to draw the graphs.

Beskou die tabel hierbo. Dit toon die potensiaalverskil oor die weerstand ( V subscript R) as funksie van tyd in ’n laai RC-stroombaan. Veronderstel dat die empiriese vergelyking wat die data beskryf gegee word deur V subscript R equals a space e to the power of b t end exponent  waar   a en b  konstantes is.

Gebruik die data in die tabel hierbo en bereken die waarde van die konstante b.

Let op: maak gebruik van Excel om die grafieke te teken.

View this question

What happens to the time constant of a charging RC-circuit if the capacitance is decreased by a factor of three? Assume that all other factors remain the same.

Wat gebeur met die tydkonstante van ’n laai RC-stroombaan indien die kapasitansie verlaag met ’n faktor 3?

View this question

 

Time/Tyd (s)

 (Volt)

0

9.00

26.66

5.27

53.33

3.09

80.00

1.81

106.6

1.06

133.3

0.625

160.0

0.366

186.6

0.215

213.3

0.126

240.0

0.0740

 

Consider the table above. It shows the potential difference across a resistor (V subscript R ) as a function of time in a charging RC-circuit. Suppose that the empirical equation which describes the data is given by: V subscript R space equals space a space e to the power of b t end exponent , where  a and b  are constants.

Use the data in the table shown above and determine the value of the constant  a.

Note: use Excel to draw the graphs.

Beskou die tabel hierbo. Dit toon die potensiaalverskil oor die weerstand ( V subscript R) as funksie van tyd in ’n laai RC-stroombaan. Veronderstel dat die empiriese vergelyking wat die data beskryf gegee word deur V subscript R equals a space e to the power of b t end exponent  waar   a en b  konstantes is.

Gebruik die data in die tabel hierbo en bereken die waarde van die konstante a.

Let op: maak gebruik van Excel om die grafieke te teken.

 

 

 

 

View this question

Consider a charging RC-circuit. The potential difference across the resistor (V subscript R) as function of time (t) is described the following empirical equation: V subscript R space equals space a space e to the power of b t end exponent where a and b are constants. Choose the correct equation from the list below which will allow you to test the validity of this empirical equation.

Beskou 'n laai RC-stroombaan. The potensiaalverskil oor die weerstand (V subscript R) as funksie van tyd (t) word beskryf deur die volgende empiriese vergelyking: V subscript R space equals space a space e to the power of b t end exponent waar a en b konstantes is. Kies die korrekte vergelyking vanuit die lys hieronder wat jou sal toelaat om die geldigheid van hieride empiriese vergelyking te ondersoek.

View this question

Want instant access to all verified answers on stemlearn.sun.ac.za?

Get Unlimited Answers To Exam Questions - Install Crowdly Extension Now!

Browser

Add to Chrome