Calculate the current for the total resistance of circuit

Assignment Help Electrical Engineering

Reference no: EM133198182 , Length: Word count: 2 Pages

Question 1: A 720N man climbed a staircase that was 12 meters high in 6.5 seconds.

Find:

a) his mass in kg

b) The work he performed during the climb

c) The Potential Energy he gained.

d) The power, in watts, generated.

Question 2: Convert 25 m/s to mph (1609m = 1 mile)

Question 3:

a) Write 0.845 in standard scientific notation.

b) Write 124 x 10⁴ as a whole number.

Question 4: If you speed up on you bike from 2.4m/s to 21m/s in just 9.3 seconds calculate your acceleration.

Question 5: If you were to scuba dive to depth of 55 meters what pressure , in Pascal, would you experience?

(recall 1 atm = 101.3kPa and 10m of water = 1 atm)

Question 6: What is the Impulse when a force of 60N is applied in 4.5 seconds?

Question 7: A lunar rock sample has a density of 3.7 g/cm³. If the volume of the sample is 3 cm³, what is the mass of the sample?

Question 8: What momentum does a 19 kg bike have moving at 21.5 m/s?

Question 9: A Big Mac has 1520kcal of energy. How many Joules is this?

Question 10: A 38-volt battery is connected to three parallel light bulbs.

Diagram and label a schematic diagram for the circuit.
Calculate the current (I) if the total resistance of the circuit is 15 ohms.
Calculate the power in Watts if the supplied voltage drops to 33 volts.

Question 11: Diagram and label a Solar and Lunar eclipse.

Question 12: Find the number of nuclear particles in the following elements:

Protons : Br _____ Fm _____

Neutrons : Br _____ Fm _____

Electrons : Br _____ Fm _____

Question 13: For a wave traveling at a velocity of 255 m/s with a frequency of 122Hz what must the wavelength be?

Question 14: A wave with a frequency of 496Hz has a period of how many seconds? (decimal answer)

Question 15: How many grams are required to make a 5.5 molar solution of:

CaCl₂_____g CH₄ _______g

Question 16: Write a balanced nuclear equation for the following Alpha decays:

Thorium - 236 Po - 210

Question 17: The star Polaris has a magnitude of 2. If the star Prosion has a magnitude of 5. Which one is brighter? The magnitude difference between the two is how many times brighter or dimmer?

Reference no: EM133198182

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