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A car is driven 225 km west and then 78 km southwest (45 degrees). What is the displacement of the car from the point of origin (magnitude and direction)?
A man weighing 690 and a woman weighing 500 have the same momentum. What is the ratio of the man's kinetic energy to that of the woman ?
A hawk flies in a horizontal arc of radius 12.0 m at a speed of 4.00 m/s, and increases its speed at the rate of 1.20 m/s2. Find the acceleration (and direction) under these conditions.
How much greater is the angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on the inside back cover. The peri
A 5.0 syringe has an inner diameter of 6.0 , a needle inner diameter of 0.27 , and a plunger pad diameter (where you place your finger) of 1.2 . A nurse uses the syringe to inject medicine into a p
If a person can jump a maximum horizontal distance (by using a 45 degree projection angle) of 3.0m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and
A ball of mass 16.9 g is attached to a cord of length 0.52 m and rotates in a vertical circle. What is the minimum speed the ball must have at the top of the circle so the cord does not become slac
How much energy is necessary to place three charges, each of 2.0 micro Coulomb's, at the corners of an equilateral triangle of side 2.0cm?
A displacement vector is 50.0 m in length and is directed 57.0o east of north. What is the northward component of this vector? What is the eastward component of this vector?
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