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In the figure, a 3.8 kg block is accelerated from rest by a compressed spring of spring constant 650 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction ?k = 0.241. The frictional force stops the block in distance D = 7.8 m. What is the original compression distance of the spring?
Write an e-mail that will impress your supervisor. Make sure the subject line is concise and descriptive or what the memo is about.
Q#1Assume the demand curve for beer is given by P=11.7-2Q; the supply curve is given by P=Q.
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. What width of the north wall can she see
In the purification process, the organic layer is washed with 2 M NaOH and then with water. What is the purpose of these washes
How many cells are on the plate. What fraction of the cell surface is occupied by receptors versus normal phospholipids
Characteristics of Mendels garden pea plant Pisumsativum that make it an ideal organism for genetic experiments and why the two characteristics are useful.
An astronomical telescope for hobbyists has an angular magnification of -130. The eyepiece has a focal length of 5.50 mm. how long is the telescope
A solution contains 0.063g of oxalic acid, H2C2O4*2H2O, in 250 mL. What is the molarity of this solution?
One method of determining the refractive index of a transparent solid is to measure the critical angle when the solid is in air. what is the index of refraction of the solid
Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.0 and a current of 12. What is the radius of the bigger loop
A simple harmonic oscillator with m = 0.740kg and total energy E = 125J has amplitude 1.65m, Find the maximum acceleration
Silver has a resistivity of 1.62×10^?8 ?m, and a density of 1.05×10^4 kg/m3. What is L? 2.At 20.0 °C, a mainly silicon resistor has a resistance of 585 ?, At what temperature will their resistances be equal
Ray of light leaves point A and reflects from mirror and travels to point B. Point B is level with bottom of mirror and distance between the two is 30 cm, How far from bottom does the light ray hit the mirror
A uniform metal rod, with a mass of 3.4 kg and a length of 1.3 m, is attached to a wall by a hinge at its base. Find the vertical component of the force exerted on the rod by the hinge
a record is turning at the rate of 33 r.p.m. when the 45 r.p.m. button is pressed. what is the angular acclereration of the record
A charged particle moves in a region of uniform field along a helical path (radius = 1.0 cm, pitch = 6.0 cm) as shown. Illustrate what is the angle between the velocity of the particle and the magnetic field?
How much must this spring be stretched to store.
A 4.1-kg block slides down an inclined plane that makes an angle of 29° with the horizontal. Find the coefficient of kinetic friction between the block and plane
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
An object with mass 0.180kg is acted on by an elastic restoring force with force constant 10.5N/m. What is the amplitude of oscillation
A block in the shape of a rectangular solid has a cross-sectional area of 4.50 cm2 across its width, a front-to-rear length of 16.0 cm, Whats the conductivity of the material
Object A, which has been charged to + 29.2 nC, is at the origin. Object B, which has been charged to - 28.9 nC, is at ( x,y ) = ( 0.0;{rm cm},; 1.50 cm ).What is the y-component of force (vec{F}_{rm A ; on ; B})_{rm y} on B due to A.
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