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A girl delivering newspapers covers her route by traveling 7.00 blocks west, 4.00 blocks north, and then 3.00 blocks east.
(a) What is her resultant displacement?
_______ blocks
(b) What is the total distance she travels?
________ blocks
A 75 kg ladder that is 3.0 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at a point 1.2 m from the base of the ladder. find the static frictional force between the floor and the ladder
q1. suppose the gravitational force between two massive spheres is 100 n. if the distance between the spheres is
An artillery shell is fired with initial velocity of 300 m/s at 55 angles above the horizontal. to clear an avalanche, it explodes on a mountainside 42s after firing. What is the x and y coordinates of the shell where it explodes, relative to its ..
A solid insulating sphere of radius a = 5 cm is fixed at the origin of a co-ordinate system as shown. The sphere is uniformly charged with a charge density ? = -312 ?C/m3. find the electric potential at the outer surface of the insulating sphere
Suppose the solenoid filled with a paramagnetic substance such as liquid oxygen. Qualitatively,how will this change your your answer to Part (b)? Will your reply increase, decrease,or remain the same.
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.315 m and mass 4.89 kg, what should the radius of the disk be
A 370-?F capacitor and a 10m H inductor are in series with a 365 ? resistor. What is the impedance at the resonant frequency
The coeffiecient of static friction between Jimmy's hand and his tennis racket is 0.45. How hard must he squeeze the racket if he wants to exert a force of 200 N along the longitudinal axis of the racket
q1. assume that abc firm has an optimal capital structure comprised of debt preferred stock and common equity. in this
A copper block is removed from a 300°C oven and dropped into 1.00 kg of water at 20.0°C. The water quickly reaches 26.5°C and then remains at that temperature. What is the mass of the copper block?
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.4 m/s2 for 4.7 seconds. What is the acceleration of the yellow car
For a Nd:YAG laser there are four pump levels located at 1.00 eV, 1.24 eV, 2.40 eV, and 2.54 eV. What is shortest possible pump wavelength (in nanometers) that could be used to populate any of the excited energy levels
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