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Whole blood has a surface tension of 0.058 N/M & a density of 1050kgm-3.what weight can whole blood rise in a capillary blood vessel that has radius 2.0 * 10-6 if the contact is zero?
A cannon tilted upward at = 25 fires a cannonball with a speed of 95 m/s. At that instant, what is the component of the cannonball's velocity parallel to the ground?
A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15 degrees, and rolls to the bottom without slipping.
Calculate the rotational kinetic energy for the following objects spinning about a central axis (in units of Joules).
Derive the allowed wave functions for this particle. Do not try to normalize the wave functions, but make sure they correspond to motion in the +z direction.
A bicycle wheel is rotating at 44 when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.42. What is the wheel's angular velocity, in rpm, 13 later?
Perfect rigid containers each hold n moles of ideal gas, one being hydrogen (H2) and other being neon (Ne). If it takes 100 J of heat to increase the temperature of the hydrogen by 2.50 C, by how m
What is the magnitude of the centripetal force keeping the sun in this path given that the sun's mass is 1.99x10^30 kg?
In a hydraulic process (as pictured above), a 20-°©-kg load on the left piston will support a 600-°©-kg load on the right piston. How does the pressure of fluid against the lower
What kind of collision is this? What is the velocity of the block/bullet immediately after impact? What is the x-distance the block/bullet travels when it hits the ground? What is the initial and fi
Two forces are the only forces acting on a 3.0-kg object which moves with an acceleration of 3.0 m/s in the positive y direction. If one of the forces acts in the positive x direction and has a mag
An electron begins at rest, and then is accelerated by a uniform electric field of 800 N/C that extends over a distance of 7 cm. Find the speed of the electron after it leaves the region of uniform
A tire with a radius of 0.380 m is rotated on a tire balancing device at exactly 460 revolutions per minute. A small stone is embedded in the tread of the tire. What is the magnitude of the centripe
A steel building is 273 m tall when the outside temperature is 0 C. How tall is the building on a hot summer day (30 C)?
Yusef pushes a chair of mass = 50.0 across a carpeted floor with a force (the subscript 'p' here is lowercase and throughout the question) of magnitude = 170 directed at = 35.0 below the horizontal
A light bulb filament has an emissivity of 0.29. At a temperature of 2790 K, the filament radiates 55 W of power. What is the surface area of the filament?
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. (a) At what rate does the sphere radiate energy? (b) If the sphere is in a small container whose walls are at t
At time a grinding wheel has an angular velocity of 22.0 . It has a constant angular acceleration of 33.0 until a circuit breaker trips at time = 2.20 . From then on, the wheel turns through an ang
An electron with a speed of 6.12 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.70 × 103 N/C, traveling along a field line in the direction th
The gravitational constant 6.67259 × 10-11 N m2/kg2. Find the minimum initial velocity of the rocket such that it will escape the gravita- tional field of Planet-I.
Its index of refraction is 1.468 at 410 nm (violet light). Find the dispersion of the slab, which is defined as the difference in the angles of refraction for the two wavelengths.
A mass m = 86 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.1 m and finally a flat straight section at the same height as the center of the loop
A 1293 kg car is traveling along a straight road at 19m/s. four seconds later, it's speed is 24m/s. What is the magnitude of the net force acting on the car during this time?a
A 50 kg satellite circles the earth in an orbit with a period of 300 min. What minimum energy E is required to change the orbit to one with a period of 510 mi
A 25 kg child sits in a swing supported by two chains, each 4.5 m long. The acceleration of gravity is 9.8 m/s2 . If the tension in each chain at the lowest point is 208 N, find the child's speed a