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If 100N force acts on a table left to right and a force of 150N from right to left. Find net force acting on the table
Prove that work net is positive when an object is speeding up. (Use the Work-Kinetic Energy theorem)
Draw a graph of velocity as function of time for v =0m/s for 0s and v =9.8m for 1s and v =19.6m/s for 2s and v =29,4m/s for 3s and 39,2m/s for 4s and 49,0m/s for 5s
A fluid temperature rise of 18°F in the fluid cooled condenser is equivalent in °C to:
The density of a substance is 1.63g/cm3. What is the mass of 0.25cm3 of the substance in grams?
A man has five 60W bulbs and a 210W water heater in his apartment. If the bulbs and the water heater are switched on four hours daily and the cost of electricity is 1.20 per KWhr. Calculate his bill for 30 days
What's the
quantum numbers for states like
5S
1/2
, 4P
3
/2
?
Explain them in
details.
Naledi leaves home in Durban at 9:00 a.m. and drives towards PMB on N3 at
80 km/h. Susan, in PMB 80 km from Durban, leaves at the same time and
travels towards Durban on N3 as 60 km/h. Where will they meet for lunch?
Develop the formulism of four vector notations for writing four vectors/tensors. Enlist at least ten examples for four vectors/tensors. Write the following in four vector notation.
a) Lorentz gauge condition
b) Equation of continuity
A certain line in the spectrum of the light from a nebula has a wavelength of
656 nm instead of the 434 nm measured in the laboratory. If the nebula is moving
radially, what is its speed relative to the Earth? Ans.: It is moving away from the
Earth with a speed of V ¼ 0:391
