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It moves at constant speed. At time t2=5s, its acceleration is (4m/s^2)i + (-6m/s^2)j. what is the radius of the path taken by the particle?
A mass of 0.53 kg attached to a vertical spring stretches the spring 37 cm from its original equilibrium position. The acceleration of gravity is 9.81 m/s2 . What is the spring constant?
A 0.75m diameter solid sphere can be rotated about an axis through its center by a torque of 11.5 m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s. What is
Why is water essential to health maintenance?
Four identical particles each have charge 0.1 μC and mass 0.03 kg. They are released from rest at the vertices of a square of side 0.33 m. How fast is each charge moving when their distances from
A row of six 1.0 N wooden blocks is being pushed across a tabletop at a constant speed by a toy tractor that exerts a force of 1.3 N on the row. What is the coefficient of kinetic friction between
Three equal point charges, each with charge 1.55 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.300 m. What is the electric potential energy U of the system?
A small block of mass m=0.032kg can slide along a frictionless loop-the-loop, with the loop radius R=12cm. The block is released from rest at point P, at height h=5R above the bottom of the loop. Ho
Some bacteria acquire there energy from sunlight. Would you expect these bacterias to have chlorophyll? explain
A uniform 5.8 m tall aluminum ladder is leaning against a frictionless vertical wall. The ladder has a weight of 252 N. The ladder slips when it makes a 56 degree angle with the horizontal floor. D
The endocrine and nervous system are major regulating systems of the body. However, the nervous system has been compared to an airmail delivery system and the endocrine system to the pony express. bri
What is the stopping potential if the intensity of the light is doubled?
1. Two black guinea pigs were mated repeatedly over several years. They produced 29black progeny and 9 white progeny. Explain these results, giving the genotypes ofparents and progeny
An anchor holding a boat stationary on a river forms a 30 degree angle with the river bottom. The anchor line is 100 meters long. Assuming the river has a uniform depth, how deep is the river direct
The magnitudes of F1 and F2 are F1=45.0 newtons and F2=80 newtons. Using a scale drawing and the graphical technique, determine (a) the magnitude of F3.
How does mitochondria differ from chloroplasts? How is it similar?
A small ball of mass 51 g is suspended from a string of length 89 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 31degrees with the vertical, ?nd the cent
Give the common and scientific names of the three bird species that have had at least 90% of their genomes sequences and are now publicly available.
Maricruz slides a 68 kg crate, m, up an inclined ramp 2.0 m long and attached to a platform 1.0 m above floor level. A 415 N force, F, parallel to the ramp, is needed to slide the crate up the ramp
Find the flare's maximum height if it is fired on the level salt flats of Utah. Find the distance from its firing point to its landing point if it is fired on the level salt flats of Utah.
To raise the pitch of a certain piano string, the piano tuner:
What is the minimum coefficient of friction between the beam and the wall for the beam to remain in static equilibrium?
An egg is thrown nearly vertically upward from a point near the cornice of a tall building. What is the direction of its acceleration at the highest point?
Suppose one speaker is driven at 578 Hz and the other at 561 Hz. What is the beat frequency in Hz?
If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Suppose it is displaced 0.130 from its equilibrium position and released with