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Find the tension in the spring. If spring is removed,what horizontal force would have to be applied to the mass to keep it at rest?
When doing a genetic cross, why is it necessary to remove parent flies before the pupae have hatched?
For a circular parallel-plate capacitor whose radius is 0.1 m, and which the separation between the plates is 2mm, what is the capacitance of this capacitor?
What is a biome nearby temperate deciduous that is good for side trips?
In all three motion graphs, the unit of time is in seconds and the unit of displacement is in meters. In plotting the points, round-off the coordinate values to the nearest integer. Construct a gra
A 205-kg crate is pushed horizontally with a force of 725 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
A 23.7-mW laser beam of diameter 2.11 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror.
If an adult has a faulty version of the human-analog to ced-4 of the nematode, what is the result?
A large flat sheet of charge has a charge per unit area of 7.4 μC/m2. Find the electric field intensity just above the surface of the sheet, measured from its midpoint. Answer in units of N/C.
The goal is to find the height of the target above sea level. (a) Draw a diagram of the situation, identifying the two triangles that are important to finding the solution.
Two horizontal forces, 233 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume th
A 50.0 kg pole vaulter running at 10.0 m/s vaults over the bar. Assuming that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was th
1. What are possible sources of the microorganisms in the bean water?
A crate slides down a ramp with an acceleration of 0.657 m/s/s when the ramp makes an angle of 37.2 º to the horizontal. At what angle would the crate slide with constant velocity?
WHy is it important to preserve a representative of each biome?
An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 18.0 µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along
Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion. Using the position of the bob at its lowest point as the reference level, determine the tot
If a diploid species has a gene with 18 known alleles, then any individual organism of that species can/must have which of the following?
A 10.4 kg block sits on a frictionless horizontal table. The block is attached to a horizontal ideal string that goes over an ideal pulley and is connected to another identical 10.4 kg block that h
What is the velocity of Toyota Prius relative to the VW Passat when they are 350 apart, just before they meet?
Joe loses 7 pounds during basketball practice. How many cups of water must he consume to replenish this loss?
A man pushes on a piano with mass 170 so that it slides at constant velocity down a ramp that is inclined at 19.4 above the horizontal floor. Neglect any friction acting on the piano. Calculate the
Modern electroplaters can cover a surface area of 120 m2 with one troy ounce of gold (volume = 1.611 cm3). What is the thickness of the electroplated gold?
Andalusian chickens with the genotype CBCB are black, those with the genotype CWCW are white, and those with the genotype CBCW are gray. What is the expected genotypic ratio of a CBCB x CBCW cross?
Describe the structure of the ATP and GTP molecule.