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Give three examples each of mechanical weathering and chemical weathering. What is frost wedging? How do plants and animals contribute to weathering? What is permafrost? What causes sinkholes?
Data on x = temperature rating (F°) and y = price ($) for 11 sleeping bags manufactured by Bergans of Norway provided the estimated regression equation ÿ = 359.2668 - 5.2772x. For these data s = 37.9372.
A stamp collector is viewing a stamp with a magnifying glass held next to her eye. Her near point is 25 cm from her eye. What is the angular magnification when the image of the stamp is 39 cm from the eye
An aluminum tank of volume 0.0300 meters cubed is filledto the top with mercury at 20 degrees C. THe tank is placed insidea chamber with an interior temperature of 70.0 degrees C. The coefficient of volume expansion for mercury is 1.82 x 10-4/C;
In frustration, you throw your physics book straight down from a cliff with an initial speed 23.8 m/s. The book hits the ground after 7.48s. how high was the cliff
Calculate the y-component of the magnetic force.
What is the angular displacement in radians of the Earth around the Sun in one hour? Assume the orbit is circular and takes exactly 365 days in a counterclockwise direction, as viewed from above the North Pole.
Two very small plastic balls of equal mass are released from rest. One of them carries +10 µC of excess charge and the other one carries +1µC of charge. No other charges or fields are present. Which of the following statements are true about them as ..
A wire is 2.5 m long. After applying a force to one end of thewire, it is now 2.501 m long. Calculate the tensile strain in the wire
A series RLC circuit is shown in the figure. The circuit is powered by an AC source. The peak emf of the AC source is 110 volt, What is the resonant frequency of this RLC circuit (in the unit of Hertz
a uniform electric field exists in a region between two oppositely charged plates. an electron is released from rest at
In the wood machine shown below, m1= 2.00 kg and m2= 7.70 kg. the masses of the pulley and string are negligible by comparison. How far will m1 descend below its innitial level? Find the velocity of m1 after 1.80 s.
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s, What is the work done on the ball by the racket
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