Sunday
September 21, 2014

Posts by janny


Total # Posts: 18

English
All of these are ways to correct comma splices, run-ons, and fused sentences except
May 29, 2014

English
In a paragraph, each sentence should
May 25, 2014

science
With the class watching from a safe (and dry!) distance below, suppose the student drops the balloon and the balloon hits the sidewalk with a force of 20 N. How much work was done on the sidewalk by the balloon?
April 8, 2013

biology
draw a graph of balloon diameter vs. temperature. what is the correlation?
September 12, 2012

physics
A leather ball of circumference 75.9 m and mass 557 g is forced to the bottom of a swimming pool and then released. After initially accelerating upward, it rises at a constant velocity. a) Calculate the buoyant force on the ball. b) Calculate the drag force the ball ...
March 19, 2012

physics
A supertanker filled with oil has a total mass of 14.1·10^8 kg. If the dimensions of the ship are those of a rectangular box 271 m long, 93.1 m wide, and 93.1 m high, determine how far the bottom of the ship is below sea level (ρsea = 1020 kg/m^3).
March 19, 2012

physics
A 2.49-m-long string, fixed at both ends, has a mass of 7.17 g. If you want to set up a standing wave in this string having a frequency of 455 Hz and 5 antinodes, what tension should you put the string under?
March 3, 2012

physics
131.4 g = 0.1314 kg
February 21, 2012

physics
In a lab, a student measures the unstretched length of a spring as 0.109 m. When a 131.4-g mass is hung from the spring, its length is 0.201 m. The mass-spring system is set into oscillatory motion, and the student observes that the amplitude of the oscillation decreases by ...
February 21, 2012

physics
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2 centered about the free end...
February 19, 2012

physics
A vertical spring with a spring constant of 1.89 N/m has a 0.307-kg mass attached to it, and the mass moves in a medium with a damping constant of 0.0221 kg/s. The mass is released from rest at a position 4.81 cm from the equilibrium position. How long will it take for the ...
February 19, 2012

physics
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2 centered about the free end...
February 19, 2012

physics
Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. If g varies by 0.151 % over the various locations where it is sampled, what is the corresponding variation in the period of the pendulum? Assume that the length of the ...
February 17, 2012

chemistry
a 14.7g ice cube is placed into 324g og water. calvulate the temperature change in the water upon complete melting of the ice. hint: determine how ,uch heat is absorbed by the melting ice and then use q=mc delta T to calculate the temperature change. use the heat of fusiion ...
May 4, 2010

chemistry
How much energy is released when 2.55kg of diethyl ether freezes?
May 4, 2010

chemisry
A 0.125 gram sample if a monoprotic acid of unknown molar mass is dissloved in water and titrated with 0.1003 MNaOH. The endpoint is reached after adding 20.77 ml of base. What is the molar mass of the unknown acid?
May 4, 2010

Math
How do you sovle for P
May 21, 2009

acrostic peom for march
M A R C H please help me today is my last day
March 17, 2009

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