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A hot plate with an insulated back is considered. The rate of heat loss by natural convection is to be determined.
Describe various types of mechanical energy compared to kinetic energy and potential energy and inter relation between them.
Consider (unrealistically) a perfectly spherical rotating planet whose g value is constant over the surface. A bead lies on a frictionless wire that lies.
The ball has a weight of 15 lb and is fixed to a rod having a negligible mass. If it is released from rest when theta = 0 deg.
Hot engine oil flows over a flat plate. The total drag force and rate of heat transfer per unit width of the plate are to be determined.
The largest caliber aircraft gun operated by German Air Force in WW2 was the 12.8cm flak 40. The weapon fired a 25.8kg shell with a muzzle speed of 880m/s.
A ball of mass 0.145kg is kicked by a soccer player. If the player's foot is in contact with the ball for 0.01sec and gives it a speed of 40m/sec.
You (m=80.0 kg) are in a rowboat (m=40.0 kg) of volume 0.300 m3. To answer the following, use the density of seawater as 10,050 N/m3.
Modelling the blocks as particles, draw two force diagrams showing all the forces acting on the two particles.
A plane wall of thickness 0.1 m and thermal conductivity of 25 W/mL. The volumetric heat generation of the wall = 0.3 MW/m^3.
When a 9.00 kg mass is placed on top of a vertical spring, the spring compresses 4.50 cm. Find the force constant of the spring.
What is total downward atmospheric force on the top of a 0.21 m by 0.26 m book lying on a table? Why doesn't this force break the table?
If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation window (radius = 0.10 m)?
The curve on the document shows the response of a bare thermocouple which has been subjected to a step change in temperature from 50 degrees celsius
From the above calculation you can see that the slab will slide down the plane. To stabilise the slab, bolts are driven perpendicular to the incline.
A force of magnitude 100N is directed N, and a second force of 200N 30 degrees East of North. Find the magnitude and direction of the third force.
Your task is to design a hydraulic system. It must be able to lift a load of 3.0 metric tons using an input force of no more than 100 N.
Describe the importance of water, pH, temperature, light, and atmospheric gasses to the growth of microorganisms.
Earth is a spherical object, which completes a full rotation every 24 hours. How long should the day on Earth be so that an object at the equator.
How much energy (In kcal) is required to raise the temperature of 1 L of water from 20 to 100C, and then turn it to steam at 100C?
What is the magnitude of N if the wheel's speed is doubled?What is the magnitude of N at the lowest point?
Find the force exerted by the rope on the car, when the angle theta is 3 degrees, and you are pulling with a force of 400, but the car does not move.
The thermal characteristics of an engine are being monitored on a dynamometer. Analysis of the coolant water shows that after 30 minutes
Water is in the big beaker in the figure on the left. Scale 1 reads 83 newtons, scale 2 reads 677 newtons, and scale 3 reads 0 newtons.
Laser eye surgery is carried out by delivering highly intense bursts of energy using electromagnetic waves.