does the equilibrium condition depend upon the number of forces and, thereby, sources of torque on either side of the fulcrum?
which observer, in which case, observes the highest frequency sound from one of the other two sources?
what is the first step in force-field analysis? multiple choice question. increasing the positive forces identifying the thrusters and counterthrusters
how was william parsons (lord rosse) in 1845 able to see spiral structure in some nebulae, whereas others had not noticed this spiral structure before?
if the piston is pushed down until the vapor is at half its original volume, and the temperature is held constant, what is the final value of pressure?
A light ray travels through water and reflects off a glass surface back into the water. How do the phases of the incident light and the reflected light compare?.
a certain 1350 kg car can accelerate from rest to 23.4 m/s in 7.7 s. what is its acceleration? how large a force is needed to produce this acceleration
A light ray travels through water and reflects off a glass surface back into the water. How do the phases of the incident light and the reflected light compare?.
Consider a junction in a circuit that splits into a parallel circuit configuration with three branches. Your multimeter reading between the two nodes reads 12 v. If each resistor has a value of 2 ω, what is the current i in each branch of the parallel resistor configuration? explain why you arrived at these answers. What can you say if each resistor had a different value?.
Water has a heat capacity that is approximately ten times larger than the heat capacity of copper metal. Assuming 100 j of energy is deposited into equal masses of the two materials as heat energy, what is true about the change in temperature?.
in a car lift used in a service station, compressed air exerts a force on a small piston of circular cross-section having a radius of 3.79 cm. this pressure is transmitted by a liquid to a second piston of radius 26.2 cm. what force must the compressed air exert in order to lift a car weighing 13800 n? answer in units of n.
You are driving home from school St at 97 km/h for 190 km and then it begins to rain and you slow to 61 km/h instantly you arrive home after five hours how far is your hometown from school
At what frequency should a 200-turn, flat coil of cross sectional area of 300. 0 cm2 be rotated in a uniform 30. 0-mt magnetic field to have a maximum value of the induced emf equal to 8. 0 v?.
in the figure below, three forces are applied to a trunk that moves leftward by 3 m over a frictionless floor. the force magnitudes are , , and and the indicated angle is 600. during the displacement, (a) what is the net work on the trunk by the three forces and (b) does the kinetic energy of the trunk increase or decrease?
a small car of mass mmm and a large car of mass 4m4m drive along a highway at constant speed. they approach a curve of radius rrr . both cars maintain the same acceleration aaa as they travel around the curve. how does the speed of the small car vsvsv s compare to the speed of the large car vlvlv l as they round the curve?
