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A 21 loudspeaker is suspended 3.0 below the ceiling by two cables that are each 40 from vertical. what is the tension in the cables in newtons?
what is the work done by an external force that transports an electron from B to A is closest to ?
What are carbohydrates? What are carbohydrates?
A constant net force of 1600 N gives a toy rocket an acceleration of 1.6 m/s2. What is the mass of the rocket?
The perspective provided by Multiple-Concept Example 9 is useful here. The highest barrier that a projectile can clear is 15.6 m, when the projectile is launched at an angle of 23.0 ° above the
An electron starts from rest 78.7cm from a fixed point charge with Q = -0.184uC. How fast will the electron be moving when it is very far away? (Ignore any effects of relativity.)
A box slides down a 31° ramp with an acceleration of 1.25 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.
An object weighing 307 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 270 N. Immersed in oil, the object weighs 282 N. Calculate the density o
Renal case study 27 year old puffy, weak tired several months. she noticed red to brown discoloration and the volume was minimal
A camel sets out to cross the desert, which is 20.2 km wide in the north-south direction. The camel walks at the uniform speed 1.81 km/hr along a straight line in the direction 58.1 north of East (o
A "gauge 8" jumper cable has a diameter d of 0.326 centimeters. The cable carries a current I of 30.0 amperes. The electric field E in the cable is 0.062 newtons per coulomb. What is the material o
Joshua Lederberg said, "Our only real competition for domination of the planet remains the viruses." In what respect could you make a similar argument about insects?
A spring has a force constant of 595 N/m and an unstretched length of 6 cm. One end is attached to a post that is free to rotate in the center of a smooth table, as shown in the top view below. The
A 2.0 mL syringe has an inner diameter of 4.0 mm, a needle inner diameter of 0.21 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine
A damped harmonic oscillator consists of a block (m = 1.84 kg), a spring (k = 9.08 N/m), and a damping force (F = -bv). Initially, it oscillates with an amplitude of 24.1 cm; because of the damping
a 75 kg man is at a position 7 meters up an 8 m uniform bar with a mass of 50 kg. If the 15 kg mass is hung at a position 4.5 m from the wall, find the tension in the cable connected 6 meters up the
If two organisms each with the genotypes TtGg mate what are the chances that they will produce a child with the dominant phenotype for height and the recessive phenotype for color?
A Carnot engine performs work at the rate of 420 kW while using 690 kcal of heat per second. If the temperature of the heat source is 550°C, at what temperature is the waste heat exhausted?
If you weigh 690 {rm N} on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 21.0 {rm km}?
At a distance of 3.7 m from a siren, the sound intensity is 3.50 10-2 W/m2. Assuming that the siren radiates sound uniformly in all directions, find the total power radiated ?
By 1935, hunting and trapping had eliminated wolves from the United States except for Alaska
Volcanoes on the Earth eject rocks at speeds of up to 140 m/s. Consider a 1250 m high volcano which ejects rocks in all directions. What is the maximum height above sea level reached by rocks?
A mass of 0.53 kg attached to a vertical spring stretches the spring 37 cm from its original equilibrium position. The acceleration of gravity is 9.81 m/s2 . What is the spring constant?
Tarzan is running at top speed of 5 m/s grabs a vine hanging from a tree. How high can he swing upward on the vine? (Hint: mass doesn't matter)
Ventricular end-diastolic volume Because most of ventricular filling occurs before atrial contraction, EDV would be minimally affected