Describe effort required to lift the box off the ground
A 10 kg effort is required to lift a 10 kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever? [The fulcrum is placed 0.5m from the box.]
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Compare and contrast the clean-up of the Exxon Valdez tanker spill vs the B.P. oil spill. Which of the types of shoreline (marsh, sandy beach, or gravel beach/rock) will sustain the longest lasting damage?
After the collision, the 1200kg vehicle attains a velocity of 45m/s West while the 1100kg vehicle, 35m/s East. find the initial velocity of 1100 kg vehicle.
Two objects have an elastic collision. Before the collision they approach one another with a velocity of 4m/s. With what velocity will they be separating after the collision?
In a TV set, electrons are accelerated from rest through a potential difference of 19kV. The electrons then pass through a 0.28-T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic
The first puck is deflected 39 below the +x axis and moves off at 0.34 m/s. Find the speed and direction of the second puck after the collision.
An opaque cylindrical tank with an open top has a diameter of 2.60 m and is completely filled with water. When the afternoon Sun reaches an angle of 30.0° above the horizon, sunlight ceases to illuminate any part of the bottom of the tank. How
A 12.0 g conducting rod oflength 1.30 m is free to slide downward between two vertical railswithout friction. The rails are connected to an 8.00 resistor, and the entire apparatus is placed ina 0.560 T uniform magneticfield. Ignore the resistance
A 394 kg mass is brought close to a second mass of 138 kg on a frictional surface with coefficient of friction 0.6. At what distance will the second mass begin to slide toward the first mass?The acceleration of gravity is 9.8 m/s2 and the value of
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Gracie has two ponds on her farm. Around one pond, she sprayed diazinon, a common pesticide, to get rid of ants.
Try to enhance or further the discussion by explaining how mitochondria works together to maintain cellular homeostasis with the ribosomes organelle,
Problem: Toll-like receptors Multiple Choice 00:16:17 are cytokines. each recognize a specific "danger" molecule.
How do you make an endospore permeable to dye? It is heat fixed. It is soaked in iodine. It is steamed for 5 minutes. It is first stained with a negative stain.
How is a skeleton's age determined by the following things? a) bone fusion b) teeth c) bone density d) shape of rib bones
When comparing living animals to fossils like those of nimravids, it would be most informative to use which type of data?
If you used the presence or absence of saber-shaped teeth to construct the phylogeny of mammals and compared it to