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A car starts from the rest covers a distanc 500m while accelerating uniformly at 10m/s2.
A Population Has A Mean Of 73.5 And A Standard Deviation Of 2.5
A. Find the mean and standard deviation of x for samples of size 30
B. Find the probability that the mean of a sample of size 30 will be less than 72
An umbrella check girl returns 2 umbrellas at random to 2 customers who had previuosly checked in namely andrea and althea. If Andrea's umbrella was black and althea's umbrella was yellow. List the elements of the samplke space all possible orders in which the umbrellas can be returned and list all possible values of the random variable x the number of correct matches
A Population Has A Mean Of 73.5 And A Standard Deviation Of 2.5
A cube of mass 10kg is at rest on a horizontal surface when it is subjected to a horizontal for P that varies with time t as P=20t. If the static and kinetic coefficients of friction are both 0.4, calculate the velocity of the cube after 5s.
FeCl2 NiSO4 CuSO4 Cr(NO3)3
which of the compound cointains an ion with 2+ Charge? And why?
A mixture of CCl4 and water is immiscible,showing two layers of colorless liquids.What happens to the layer of H2O and CCl4 if a crystal of KMnO4 is added?
A mixture of CCl4 and water is immiscible,showing two layers of colorless liquids.What happens to the layer of H2O and CCl4 if a crystal of KMnO4 is added?
Tri-pak Packaging produces cardboard boxes that are sold in bundles of 1000 boxes. The market is highly competitive, with boxes currently selling for R100 per thousand. Tri-pak’s total and marginal cost curves are: TC = 3,000,000 + 0.001Q2 MC = 0.002Q where Q is measured in thousand box bundles per year.
1. What volume of carbon dioxide is formed, at r.t.p., by burning 100 g of carbon? The equation is:
C(s) + O 2 (g) CO 2 (g).
2. What is the volume of 6.50 mol of nitrogen gas at r.t.p.?
3. What volume would 200 g of SF 6 occupy at room temperature and pressure?
4. Methane reacts with steam to produce carbon monoxide and hydrogen, according the following
equation: CH 4 (g) + H 2 O(g) CO(g) + 3H 2 (g)
What volume of H 2 , at room temperature and pressure, would 20 g of methane produce?
5. Burning propane, C 3 H 8 , forms carbon dioxide and water according to the equation: C 3 H 8 + 5O 2
3CO 2 + 4H 2 O. If 50 dm 3 of CO 2 , at r.t.p., was formed, how many grams of propane was burned?
#340153 on Dec 2023