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A sample of nitrogen gas occupies a volume of 2.00 L at 756 mmHg and 0.00 C. The volume increases by 2.00 L and the temperature decreases to 137 K. What is the final pressure exerted on the gas?
The initial temperature of a 1.00 liter sample of argon is 20 C. The pressure is decreased from 720 mmHg to 360 mmHg and the volume increases to 2.14 liters. What was the change in temperature of the argon?
322 L of hydrogen occupies a volume of 197 L at STP. If the initial temperature of the hydrogen was 37 C, what was its initial pressure?
A sample of argon has a volume of 5.0 dm3 and the pressure is 0.92 atm. If the final temperature is 30C, the final volume is 5.7 L, and the final pressure is 800 mmHg, what was the initial temperature of the argon?
A sample of sulphur dioxide occupies a volume of 652mL at 40C and 720mmHg. What volume will the sulphur dioxide occupy at STP?
Swati bought 600 shares of stock at a price of Rs 20 per share. She must pay her stock broker a 2% commission for the transaction.
Write a program that the display the following:
-The amount paid for the stock alone (without the commission)
-The amount of the commission
-The total amount paid
Suppose the production cost is R293 250, computing cost is R1 035, labour cost is R4 140 and the saving on reusable material is R1 725, determine the number of devices produced
A projectile is fired at an angle of 30° above the horizontal from the edge of a vertical cliff. Ignore
air resistance. (a) Is the projectile’s velocity ever only horizontal? If so, when; if not, why not?
(b) Is its velocity ever only vertical? If so, when; if not, why not? (c) Are there any points at which
the projectile’s acceleration is either parallel or perpendicular to its velocity? Explain.
When preparing a bouquet, a florist can choose from seven roses, six carnations, and four chrysanthemums. How many bouquets can the florist make if the bouquet must have at least one flower?
A method called sine, which takes as its only parameter a value of type double, and returns a value
of type double. The parameter represents an angle expressed in radians, and the value returned by
the method represents the trigonometric sine of this angle. For example, suppose the following method
call is executed:
#339914 on Dec 2023