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An airplane is heading due south at a speed of 485 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). What is the velocity (magnitude and direction) of the plane relativ
Imagine that a mad scientist invents a death-ray that destroys a person's ciliary, sphenopalatine, and submandibular ganglia (and nothing else). Discuss all the symptoms the victim would show. Would t
A 75-kg lumberjack stands at one end of a 383-kg floating log, as shown in the figure. Both the log and the lumberjack are at rest initially. If the lumberjack now trots toward the other end of the
A motorist traveling at 17 m/s encounters a deer in the road 48 m ahead. If the maximum acceleration the vehicle's brakes are capable of is -5 m/s2, what is the maximum reaction time of the motoris
the Hall voltage is 0.337 µV. What is the unknown magnitude of the field? B.If the thickness of the probe in the direction of B is 1.88 mm, calculate the charge-carrier density (each of charge
Animals obtain energy through a series of chemicals reactions in which sugar (C6 H12 O6 ) and oxygen gas (O2 ) are reactant. This produces water (H2O) and carbon dioxide (CO2) as waste products. How m
A 5kg ball, moving to the right at a velocity of 2m/s on a frictionless table, collides head on with a 7.5kg ball. Find the final velocities of the balls if the collision is completely inelastic.
A cat runs along a straight line (the x-axis) from point A to point B to point C, as shown in Fig. 2.1. The distance between points A and C is 5.00 m, the distance between points B and C is 10.0 m,
A conducting rod of length moves on two horizontal, frictionless rails, as in the figure. A constant force of 1.00 N moves the bar at 2.00 m/s through a magnetic field B that is directed into the mo
Commensal algae that live in the tissues of the coral polyps provide what?
An airplane is flying with a velocity of 80.0 at an angle of 19.0 above the horizontal. When the plane is a distance 110 directly above a dog that is standing on level ground, a suitcase drops out
To keep the equation dimensionally homogeneous, what is the unit of 0.00256?
A white billiard ball with mass mw = 1.57 kg is moving directly to the right with a speed of v = 3.36 m/s and collides elastically with a black billiard ball with the same mass mb = 1.57 kg that is
It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The mass of the ball is 1.6kg and the mass
What would be the base sequence of RNA after transcription occurs
An open organ pipe and an organ pipe that is closed at one end both have lengths of 0.75 m at 22°C. What is the fundamental frequency of each pipe?
An astronaut on a small planet wishes to measure the local value of g by timing pulses traveling down a wire which has a large object suspended from it.
What are the parts and functions of a neuron?
The differences among the three categories of cytoskeletal elements would suggest that each of the following has specialized roles. Which of the following is the correct match?
A small crack occurs at the base of a 15m high dam. The effective crack area through which the water escapes is 1.3 X 10^-3 m^2. Ignoring viscous losses what is the speed of water flowing through t
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.55 m/s at 52.0° below the horizontal. Calculate the speed of her shadow on the level ground.
A proton moves with a speed of 2.0 106 m/s horizontally, at a right angle to a magnetic field. What magnetic field strength is required to just balance the weight of the proton and keep it moving ho
Causes and treatments for eye cataracts in newborns
A golf ball is struck with a five iron on level ground. It lands 91.4 away 4.20 later. What was (a) the direction and (b) the magnitude of the initial velocity?
Which prokaryotic biology involves metabolic cooperation among cells.