What is the speed of sound
A closed organ pipe 0.8 m long has a diameter of 7.0 cm. The air in the church is 15oC. What is the speed of sound at 15oC?
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A toy cannon uses a spring to project a 5.40 g soft rubber ball. The spring is originally compressed by 5.09 cm and has a force constant of 7.97 N/m. When the cannon is fired, the ball moves 15.3 cm through the horizontal barrel of the cannon, and
Of the roles that the press plays in the American political system, which is it least equipped to carry out properly?
Ethanol, is added to gasoline to produce E85, a fuel for automobiles engines. How many grams of O2 are required for complete combustion of 421g of ethanol ? When C2H5OH +3O2 produces 2CO2 + 3H2O.
Why was printing and publishing books and music so profitable in the Renaissance? How was information transmitted before printing was invented?
A Federation starship (1.0 106 kg) uses its tractor beam to pull a shuttlecraft (1.0 104 kg ) aboard from a distance of 8 km away. The tractor beam exerts a constant force of 4.0 104 N on the shuttlecraft. Both spacecraft are initially at rest. Ho
50.0 g of KCl at 27.0 °C is dissolved in 100. mL of 27.0 °C water in a coffee cup calorimeter. What is the final temperature of the salt solution? Assume that the heat capacity of the solution is 4.184 J/g·°C
A box of textbooks of mass 24.7 kg rests on a loading ramp that makes angle a with the horizontal. The coefficient of kinetic friction is .25 and the coefficient of static friction is .37. Find the minimum angle at which the box starts to slip.
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.
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Bearing in mind that there may be several, choose a social, behavioral, or cultural factor associated with your selected domestic violence
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
Question: Jena and Ben are employees of Big City Electronics. They began to have a consensual sexual relationship.
Question: Identify a true statement about validity as applied to a test. Multiple choice question
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
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Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred