Numerade

Questions asked

BEST MATCH

17. As shown in Figure 17, a heavy crate ($m = 60 kg$) is being lifted, and by accident, when the left end has been lifted up (with the right end still on the ground), the workman lost his grip. Assume that when the workman lost his grip, the bottom of the crate was oriented at an angle of 30° to the ground and the crate was initially stationary. What is the angular acceleration of the crate immediately after the workman's grip was lost? The coefficient of friction between crate and ground is $\mu = 0.4$, $a = 0.7 m$, and $b = 2 m$.

View Answer

BEST MATCH

What is happening during the process of transformation? insertion of genes deletion of genes species change prokaryote becomes a eukaryote

View Answer

BEST MATCH

1. Car A is moving south toward point P and car B is moving west away from point P. Car A is traveling at 35 mph and car B is traveling at 45 mph. How fast is the distance between the cars changing when car A is 50 miles from P and car B is 70 miles from P? 2. A 25 ft ladder rests on a wall. The bottom of the ladder is sliding away from the wall at a rate of 2 ft/sec. How fast is the top of the ladder sliding down the wall when the top of the ladder is 10 ft from the floor. 3. An airplane flies over a man at an altitude of 1000 ft. When the angle of elevation is $\pi/4$ radians, the angle of elevation is decreasing at a rate of .15 rad/sec. Find the speed of the airplane. 4. When two resistors $R_1$ and $R_2$ are placed in parallel position, the resultant resistance is given by $$ \frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2}$$ Find the rate of change of the resultant resistance when $R_1$ is increasing at a rate of 2 Ohms/sec and $R_2$ has a resistance of 250 Ohms and is decreasing at a rate of 3 Ohms/sec. 5. In a circuit, the Power, the current and the Resistance are related by the equation $$P = I R T.$$ How fast is the power changing when the current is 2 amps increasing at a rate of .11 amps/sec and the resistance is 500 Ohms and decreasing at a rate of 20 Ohms/sec?

View Answer

BEST MATCH

Multiple Choice Question Assuming all other factors remain constant, if variable cost per unit increases, then the break-even point will: O increase O decrease

View Answer

BEST MATCH

Question 22 (1 point) Listen Which of the following is not true about migration? Migration plays an important role in the economies of developing countries A major source of foreign exchange in some countries is the money sent home by migrants Migration provides a valuable safety valve for poor countries The best and brightest professionals are very unlikely to migrate to developed countries Every year thousands of nurses migrate from countries such as Kenya and the Philippines to the United States

View Answer

BEST MATCH

A proton moves whats the magnitude and direction of the electic field seen on the electron

View Answer

BEST MATCH

Question 5 12.5 pts In the figure below, economies of scale are present up to an output of: A. 10 tonnes of coffee B. 5 tonnes of coffee C. 15 tonnes of coffee D. 13 tonnes of coffee E. 19 tonnes of coffee

View Answer

BEST MATCH

Blossom Company factors $ \$ 372000 $ of accounts receivable with Splish Factors Inc. on a without recourse basis. The receivables records are transferred to Splish Factors, which takes over full responsibility for collections. Splish assesses a finance charge of $ 3 \% $ and withholds an initial amount equal to $ 8 \% $ of the accounts receivable for returns and allowances. The cash paid by Splish Factors to Blossom Company is $ \$ 372000 $. $ \$ 360840 $. $ \$ 342240 $. $ \$ 331080 $.

View Answer

BEST MATCH

At the plane interface between two linear dielectrics with dielectric constant E and E2, the electric field E makes an angle with the normal to the interface. Find the electric field E, in the other medium and the polarization charge density on the interface. [10]

View Answer

BEST MATCH

Price ATC $34 MC $26 $18 $13 This firm MR: D 20 30 Quantity is in a competitive market. can make a profit. cannot make a profit. is not a monopolist because its MR<P.

View Answer

stephen c.