Numerade

Questions asked

BEST MATCH

What is the direction of this acceleration? The acceleration is parallel to $\vec{v}$ and perpendicular to $\vec{B}$ and so is vertical, along the particle's path The acceleration is perpendicular to $\vec{v}$ and parallel to $\vec{B}$ and so is horizontal, along the particle's path. The acceleration is perpendicular to $\vec{v}$ and $\vec{B}$ and so is horizontal, toward the center of curvature of the particle's path The acceleration is perpendicular to $\vec{v}$ and $\vec{B}$ and so is horizontal, out of the center of curvature of the particle's path

View Answer

BEST MATCH

When economists say that money serves as a medium of exchange, they mean that it is Multiple Choice declared as legal tender by the government. a monetary unit for measuring and comparing the relative values of goods. a means of payment.

View Answer

BEST MATCH

Why do you think it is a bad idea to use an antacid that has both CaCO3 and magnesium hydroxide as active ingredients?

View Answer

BEST MATCH

Bacterium A can grow only in the absence of oxygen. Hence bacterium A is a ________________________.

View Answer

BEST MATCH

Please label the structures on the diagram that are ONLY found in the Gram-negative cell. Not all labels are used. O antigen Lipoprotein Peptidoglycan Lipid A LPS Phospholipid bilayer Periplasm

View Answer

BEST MATCH

A discrete PID controller is used to set the speed of a motor. The set point for the motor, as measured by the speed sensor, is 5 V. The table below shows the actual output values for each loop of the controller program. Time (ms) Speed (V) 0 0 66.70 0.54 133.40 2.70 200.10 4.24 If the controller has settings of $K_p = 2.76$, $K_i = 0.00263$ and $K_d = 7.07$ (with all units defined in time units of ms), what is the current output value of the PID controller? Give your answer in V to 2 decimal places. Round your answer to 2 decimal places. Advice The correct answer is: 3.63 [5 marks, 2 decimal places otherwise 4.0 marks]

View Answer

BEST MATCH

Solve the triangle. 34° A b C 73° a=9 B C B = (Do not round until the final answer. Then round to the nearest degree as needed.) b? (Do not round until the final answer. Then round to the nearest tenth as needed.) c? (Do not round until the final answer. Then round to the nearest tenth as needed.)

View Answer

BEST MATCH

True/False (a) According to the first law of thermodynamics, the energy of the universe is constant. Thus, $\Delta E$ is always equal to zero. [Select] (b) When 15 g of aluminum, 15 g of water, and 15 g of silver are subjected to the same amount of heat, water would undergo the smallest change in temperature. (The specific heat capacities of aluminum, water, and silver are 0.89, 4.18, and 0.235 J/g°C, respectively.) [Select] (c) For the reaction 2P + 5Cl$_2$ $\to$ 2PCl$_5$ (at constant pressure), the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps. [Select]

View Answer

BEST MATCH

Find the accumulated future value of a 13-year $230,000 continuous income stream that has been compounded continuously at 4.6%. Round to the nearest dollar.

View Answer

BEST MATCH

Question 2 - A drill press was purchased 2 years ago for $40,000. The press can be sold for $15,000 today, or for $12,000, $10,000, $8000, $6000, $4000, or $2000 at the ends of each of the next 6 years. The annual operating and maintenance cost for the next 6 years will be $2700, $2900, $3300, $3700, $4200, and $4700. A) Determine the marginal cost to extend service for each of the next 6 years if the MARR is 12%. (1.5 points) B) (Bonus) If a new drill press has a minimum EUAC of $7000, when should the drill press be replaced? Explain your answer. (1 point)

View Answer

ines m.