When does it reach the street again

Assignment Help Chemistry
Reference no: EM13166448

a baseball is seen to pass upward by a window 22m above the street with the vertical speed 13m/s. if the ball was thrown froom the street.

a) what was its initial speed?
b) what altitude does it reach?
c) when was it thrown?
d) when does it reach the street again?

Reference no: EM13166448

Questions Cloud

Calculate the total number of moles of cl- ions in solution : 0.134 mole of KCl and 0.185 mole of CaCl2 were dissolved in water. calculate the total number of moles of Cl- ions in the solution.
Calculate the amount needed per employee : Calculate the amount needed per employee if the discount rate is not 10%, but 6%. If the workforce numbers 3,000, what is the total difference in cost between these two assumptions?
What ways can management accountants adapt : Do you agree with above statement and what ways can management accountants adapt the services they provide to the new environment?
Calculate the enthalpy change for the dissolution : Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
When does it reach the street again : a baseball is seen to pass upward by a window 22m above the street with the vertical speed 13m/s. if the ball was thrown froom the street.
What is the concentration of li+ in the original solution : If 5 mL of the original unknown sample was diluted to 200 mL prior to analysis, what is the concentration of Li+ in the original solution?
Calculate the concentrations of n2o4 and no2 : At a particular temperature, K = 4.0 x 10^-7 for the reaction N2O4(g) ---> 2NO2(g). In an experiment, 1.0 mol N2O4 is placed in a 10.0L vessel. Calculate the concentrations of N2O4 and NO2 when this reaction reaches equilibrium.
How many grams of sodium nitrate must be heated : Sodium nitrate decomposes upon heating to form sodium nitrite and oxygen gas. This reaction is sometimes used to produce small quantities of oxygen in the lab. How many grams of sodium nitrate must be heated to produce 128g of oxygen?
Calculate the equilibrium concentration of ag+ : Excess Ag2CO3 is added to an 0.2 M K2CO3solution. Calculate the equilibrium concentration of Ag+ under these conditions.Ksp for Ag2CO3 is 8.1 x 10-12.

Reviews

Write a Review

Chemistry Questions & Answers

  What is the value for w for this reaction

A chemical reaction takes place in a container of cross-sectional area 100 cm2 As a result of . the reaction, a piston is pushed out through 11 cm against an external pressure of 689 torr. What is the value for w for this reaction?

  Calculate the mass of hydrogen per oxide needed

Calculate the mass of hydrogen per oxide needed to obtain 0.460 L of oxygen gas at STP. 2H2O2(aq) → 2H2O(l) + O2(g).

  Compute the downward pressure in pascals due to gravity

Calculate the downward pressure in pascals due to gravity exerted by the bottom face of a 3.25kg cube of iron that is 7.50 cm

  What was the percent (by mass) of acetic acid in the sample?

A 15.6 mL sample of vinegar, containing acetic acid, HC2H3O2, was titrated using 0.6216 M NaOH solution. The titration required 19.80 mL of the base. Assuming the density of the vinegar to be 1.0 g/mL, what was the percent (by mass) of acetic acid..

  Compute the zero-point energy of a harmonic

Calculate the zero-point energy of a harmonic oscillator consisting of a rigid CO molecule adsorbed to a metal surface by a bond of force

  How many grams of h3po4 are present

How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?

  How many grams of fe2o3 are needed

the Na formed during the breakdown of NaN3 reacts with Fe2O3. How many grams of Fe2O3 are needed to react with 35.3 g Na?

  Explain molar solution of nacl in water

In a 0.1 molar solution of NaCl in water, which one of the following will be closest to 0.1?" A) the mole fraction of NaCl B) The mass fraction of NaCl

  How many molecules of oxygen gas are needed

how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?

  Explain does a chemical change occur when you cook an egg

Does a chemical change occur when you cook an egg? Why or why not? When you fry an egg, it becomes a solid, the heat makes it smoke, and the color changes from clear and yellow to all yellow.

  Estimate the bond length of the bond in picometers

The dipole moment of HBr (a polar covalent molecule) is 0.784 (debye), and its percent ionic character is 11.6 . Estimate the bond length of the bond in picometers.

  State what mass of hcl gas must be added to buffer

What mass of HCl gas must be added to 1.00L of a buffer solution that contains [acetic acid]= 2.0M and [acetate]= 1.0M

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd