Search & Filtering
5.A balloon has a volume of 2.25 L when the temperature is 400C. What will be the volume if the balloon is cooled to 120C? Assume the pressure to be constant.
4. A 2.5 litre sample of a gas is heated from 250 C to 550C at constant pressure. Compute the volume at the higher temperature?
2. A tank ( not rigid) contains 2.5 litres of helium gas at 280C . At constant pressure, what will
be the volume of the tank after heating it and its content to 430C temperature?
The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches. Pediatricians regularly measure the heights of toddlers to determine whether there is a problem. There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.
A 12 ohm resistor is in series with an 8 ohm load. What is the total source voltage if the voltage across the 12 ohm resistor is 36 Volts?
- What amounts of each species is expected to be present at the end of the reaction between 3.2 g of solid gallium and 3.2 g of gaseous oxygen?
- Elemental copper and HNO3 react to form copper (II) nitrate, nitrogen dioxide, and water. What is the percent yield of the reaction where 0.185 Mg of copper and 0.0125 Tg of HNO3 react to form 1.95 x 1020 fg of nitrogen dioxide?
- When 1.25g of H2Se gas is bubbled into a solution containing 2.00g of potassium hydroxide, how many grams of the potassium-containing product forms, assuming that the reaction proceeds with 92.0% yield?
- Phosphorous and hydrogen react to form 4.00 g of product with 35.5 % yield. If 1.05 g of hydrogen remained unreacted, how much phosphorus must have been present at the start?
- How many of each of the spectator ions are present after the reaction of 1.0g calcium sulfate and 1.0g potassium phosphate?
- A resistor R in series with an 8 ohms resistor is connected across a 60 V voltage source delivering 2.5 A of current. Find the value of resistor R.
A company such as San has many stakeholders. The shareholders is San are usually viewed as....... stakeholders
The average number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is 660 mg, and the standard deviation is 35 mg. Assume the variable is normally distributed.
_______3. If a sample of 10 cups of ice cream is selected, what is the probability that the mean
of the sample will be larger than 670 mg?
A. 11.84% B. 14.18% C. 18.41% D. 19.41%
_______4. If a sample of 10 cups of ice cream is selected, what is the probability that the mean
of the sample will be smaller than 625 mg?
A. 0.0008% B. 0.008% C. 0.08% D. 0.8%
_______5. If a sample of 10 cups of ice cream is selected, what is the probability that the mean
of the sample will be larger than 637 mg?
A. 91.28% B. 98.12% C. 98.21% D. 99.21%
Explain the following observation on the basis of theory of relativity, the half-life of a
particular particle as measured in the laboratory comes out to be 4.0 × 10-8 s when its speed is 0.8c
and 3.0 × 10-8 s when its speed is 0.6c.
