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A 106 kg water skier floating in a lake is pulled from rest to a speed of 13 m/s in a distance of 25 m. What is the net force exerted on the skier, assuming his acceleration is constant?
What do these error messages and warning tell you about how closely VirtualUnknow Microbiology mimics nature in demonstrating the ubiquity of microbes?
Sam, whose mass is 71.0 , takes off down a 45.0 high, 11.0 slope on his jet-powered skis. The skis have a thrust of 180 . Sam's speed at the bottom is 40.0 .
Why it is important you lift the lids of the petri dish as little as possible in ubiquity of microorganism
The cars wheels lock, the tires begin skidding, and the car slides to a halt in a distance of 25.0 m. What is the coefficient of kinetic friction between your tires and the wet road?
You purchase a rectangular piece of metal that has dimensions 5.00 mm x 15.0 mm x 30.0 mm and mass 1.90×10-2 kg. The seller tells you that the metal is gold. To check this, you compute the av
Atoms can be represented by simply listing the number of protons, neutrons, and electrons-for example, 2 p+; 2 n0; 2 e- for helium. Which atom represents the 18O isotope of oxygen?
A 66.0 {rm kg} construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted into place?
A motorist traveling at 13 m/s encounters a deer in the road 47 m ahead. If the maximum acceleration the vehicle's brakes are capable of is -5 m/s^2, what is the maximum reaction time of the motoris
Explain the role of the liver, intestinal bacteria, vitamin K, clotting factors and calcium ions in the process of blood clot formation.
A magnetic field of 75 mT that is oriented parallel to the current in the 13 m side of the triangle. Compute the net force on the loop by working out the force exerted on each side and summing.
Suppose after charging a 2.1 µF capacitor to 9 V, you connect it to the second uncharged capacitor of 14 µF. What voltage will your voltmeter read across the second capacitor after repe
A 0.68 {rm kg} mass at the end of a spring vibrates 4.0 times per second with an amplitude of 0.13 {rm m}. Determine the velocity when it passes the equilibrium point.
If a beetroot cilynder was placed in a test tube of 0.5% saponin at 20oC anf left for 30 minutes, what would you expct to observe? why?
On a very muddy football field, a 100 linebacker tackles an 75 halfback. What is the direction of this velocity?
On another planet a simple pendulum consisting of a 0.151 kg mass suspended on a 1.2 m long string has a period of 3.860 seconds. What is the acceleration on this planet?
explain each step of the method as it applies to your web experiment and real life example paper must include two explanations of scientific methods
A projectile is fired horizontally from a gun that is 47.0 m above flat ground, emerging from the gun with a speed of 250 m/s.
A coin is placed 32 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When the speed of the coin is 100 cm/s (rotating at a constant rate), the co
Assume that the platform is initially at rest and the torque is applied for 12.0 rotations. Neglect friction. What is the rotational kinetic energy of the platform K_rot,f at the end of the process
Determine (a) the velocity when it passes the equilibrium point, (b) the veolocity when it is 0.10 m from equilibrium, (c) the total energy of the system, and (d) the equation describing the motion
Where does enzymatic hydrolysis of the macromolecule occur in food?
The center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface. Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a
What is the maximum compression of the spring, and at what compression of the spring does the box have its maximum speed?
The area of the piston in the master cylinder is 1.75 cm2, and that of the piston in the brake cylinder is 6.4 cm2. The coefficient of friction between shoe and wheel drum is 0.50. If the wheel has