Find the frequency of small oscillations for a thin homogeneous plate if the motion takesplace in the plane of the plate and if the plate has the shape of an equilateral triangle andis suspended (a) from the midpoint of one side and (b) from the apex.
chemical equation for 3-nitroacetophenone using tin and hydrochloric acid
Which one of the following cells (Ch. 4) has the greatest surface-to-volume ratio? a. bacterium b. human red blood cell c. round, starch-storing cell in a potato d. frog egg e. ostrich egg
A 3.8 kg object starting from rest falls through a viscous medium and experiences a resistive force R = −b v, where v is the velocity of the object.The acceleration of gravity is 9.8 m/s2 .If the object’s speed reaches one-half its ter- minal speed in 5.018 s, determine the terminal speed.Answer in units of […]
http://session.masteringphysics.com/problemAsset/1169211/1/jfk.Figure.20.P47.jpgPart A:What is the force on the 1.0nC charge in the figure? Give the magnitude. Express your answer using two significant figures.Part B:Give the direcion. Express your answer using two significant figures.
1. Give the formula or the name of the following hydrated salts:a. cobalt(II) chloride hexahydrate b. iron(II) sulfate heptahydratec. CaCl2 x 2H2Od. Cu(NO3)2 x 3H2O 2. The mass percent of water in a hydrate of MnCl2 is 36.41%. What is the formula of the hydrate?3. A hydrated compound has analysis of 18.29% Ca, 32.37% Cl,and […]
suppose the gravitational force between two massive spheres is 100 N. If the distance between the spheres is doubled, what is the force between the masses?
A)Supposing that it remains at that value all the way to absolute zero, calculate the number of calories it would take to change a 0.50g ice cube at absolute zero (-273 degree C}) to 0.50 g of boiling water.B)How does this number of calories compare with the number of calories required to change the same […]
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 53.9 m/s^2. The acceleration period lasts for time 6.00 s until the fuel is exhausted. After that, the rocket is in free fall.
How many moles are in 0.162 L of a 1.94 M solution of potassium chloride (74.55 g/mol)?
