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A 0.114 kg meterstick is supported at its 36.6 cm mark by a string attached to the ceiling. A 0.649 kg mass hangs vertically from the 4.67 cm mark.
1) Describe your local and surrounding ecologies and environments 2) List the specific factors that distinguish your local ecology and environment.
Suppose after charging a 4.8 microF capacitor to 5 V, you connect it to the second uncharged capacitor of 13 microF. What voltage will you voltmeter read across the second capacitor after repeating
A person holds a ladder horizontally at its center. Treating the ladder as a uniform rod of length 3.30 m and mass 7.43 kg, find the torque the person must exert on the ladder to give it an angular
A cart loaded with bricks has a total mass of 21.2 kg and is pulled at constant speed by a rope. The rope is inclined at 27.2 ? above the horizontal and the cart moves 27.1 m on a horizontal floor.
A typical adult human has a mass of about 70 .What force does a full moon exert on such a human when it is directly overhead with its center 378,000 away? Compare this force with the force exerted
A cosmic-ray proton in interstellar space has an energy of 14.0 MeV and executes a circular orbit having a radius equal to that of Venus's orbit around the Sun (1.08 * 10^11 m). What is the magnetic
By how many decibels do you reduce the sound intensity level due to a source of sound if you quadruple your distance from it? Assume that the waves expand spherically in dB??
Calculate its average speed(b) Calculate its average velocity for the entire trip, using "away from the trainer" as the positive direction.
A toy of mass 0.155 kg is undergoing SHM on the end of a horizontal spring with force constant 305 N/m. When the object is a distance 1.20×10-2 m from its equilibrium position, it is observed
Sam, a train engineer, blows a whistle that has a frequency of 4.0 102 Hz as the train approaches a station. If the speed of the train is 35 m/s, what frequency will be heard by a person at the stat
A 30-06 caliber hunting rifle fires a bullet of mass 0.0146 kg with a velocity of 314 m/s to the right. The rifle has a mass of 2.49 kg. What is the recoil speed of the rifle as the bullet leaves th
Sally travels by car from one city to another. She drives for 24.0 min at 63.0 km/h, 52.0 min at 42.0 km/h, and 18.0 min at 81.0 km/h, and she spends 5.0 min eating lunch and buying gas. Determine
A 2.10- sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats. T
Lamborghini states that its 2004 Murciélago® has a mass of 1650 kg. On a particular test run, its 580 hp (433 kW) engine accelerates the car from 0 to 100 km/h (62 mph) in 3.60 seconds.
What is the shape of the can's trajectory as seen by the boy? (d) An observer on the ground watches the boy throw the can and catch it. In this observer's ground frame of reference, describe the sha
An elevator car, with a mass of 500 kg, starts at rest and moves upward with a constant acceleration until it reaches a velocity of 1.60 m/s after 2.70 seconds. If the car rises 2.16 m during this
Similarly, if you shined a spotlight to the left and recorded the particle's shadow, you would get the motion diagram for its y component. How would you describe the two motion diagrams for the comp
A golf ball with an initial angle of 34? lands ex- actly 240 m down the range on a level course. The acceleration of gravity is 9.81 m/s2. Neglecting air friction, what initial speed would achieve t
A dish of hot food has an emissivity of 0.4 and emits 20 W of thermal radiation. If you wrap it in aluminum foil, which has an emissivity of 0.08, how much power will it radiate?
A 18.0 18.0 square loop of wire lies in the xy-plane with its bottom edge on the x-axis. The resistance of the loop is 0.530 . A magnetic field parallel to the z-axis is given by 0.810 , where is in
Two cicadas, Chirpy and Milada, jump from the top of a vertical cliff. Chirpy just drops and reaches the ground in 3.10 , while Milada jumps horizontally with an initial speed of 98.0 . How far fro
A 1.5 kg copper block is given an initial speed of 3.0 m/s on a rough horizontal surface. Because of friction, the block finally comes to test. If the block absorbs 85% of its kinetic energy, calcul
A constant force of 105 N, directed upward, is applied to a 3.9 Kg toy rocket by the rocket's engine. what is the rockets acceleration?
To water the yard, you use a hose with a diameter of 3.4 cm. Water flows from the hose with a speed of 1.5 m/s. If you partially block the end of the hose so the effective diameter is now 0.62 cm, w