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There are n equal resistors. Series connection of these resistors gives 98 Ohms. Parallel connection of these resistors gives 2 Ohms. Find n.
A burner burns a fuel gas entering at 70oF and 1atm, employing 20% excess air with the same condition as the fuel gas. Assuming complete combustion, give the Orsat analysis of the flue gas. Fuel gas composition (%vol) is as follows: 1%O2, 3%CO2, 33%CO, 40%H2, 1%Benzene, 6%ethylene, 6%N2, 10%Paraffins (C12H44). The number of moles of carbon dioxide in the flue gas per 100 moles of fuel gas.
What is the area of a circle with circumference = 10 meters?
Physics
a body with an electron of 15x10^-20 has a charge of 6x10^-10. determine the number of protons the body has
From Earth we can measure the radius of Mars using our telescopes. An estimate for it is 3.39 x 106 m. By sending an exploratory robot to Mars, we determined the acceleration due to gravity on its surface as 3.73 m/s2. Estimate the mass of Mars
Physics
How long does a 50 kW pump motor have to run to pump 500 cubic meters of water from a 180m deep mine.
What do your What do your think about the total mechanical energy of a system
Select one:
a. can never be negative.
b. is either all kinetic energy or all potential energy, at any one instant
c. is constant, only if conservative forces act
d. is equally divided between kinetic energy and potential energythink about the total mechanical energy of a system
Select one:
a. can never be negative.
b. is either all kinetic energy or all potential energy, at any one instant
c. is constant, only if conservative forces act
d. is equally divided between kinetic energy and potential energythink about the total mechanical energy of a system
What do your think about the total mechanical energy of a system
A shopper pushes her 25 kg grocery cart by a force of 225 N inclined at an
angle of 60° with the horizontal through a distance of 7.5 m as shown in the
free body diagram. Find the work done by (a) the 225 N force and (b) friction.
Assume that the coefficient of kinetic friction is 0.32.
angle of 60° with the horizontal through a distance of 7.5 m as shown in the
free body diagram. Find the work done by (a) the 225 N force and (b) friction.
Assume that the coefficient of kinetic friction is 0.32.
Physics
Two bodies of mass m1 and m2 are connected to the table through a roller with negligible mass. The coefficient of friction between the body with mass m2 and the table is = 0.5. Determine the acceleration with which the two bodies move when the body of mass m1 is left free for the coefficient of friction - a. = 0; b. = 0.5. Find the compressive force. Find the velocity of the body if it hits the floor after time t = 1s and find the height of the body with mass m1 from the floor.
