A boat floats south on the Amazon River at a speed of 6 m/s. The boat and
passengers have a combined mass of 540 kg.

a. What is the momentum of the boat? (Remember, momentum is a vector
quantity.)

b. The passengers paddle backward, reducing the speed to 4 m/s. What was the
impulse applied to the boat by the paddling?

Schultz et al (1980) assessed the intelligence of 100 young and 100 older people (average age was about 20 years and 64 years respectiv ely). They found declines in certain kinds of intelligence and spontaneous flexibility with age.(a) Identify the independent and dependent variables in this study. (b) Did they use a longitudinal or crosssectional design? Briefly explain your answer. Can someone help me solve this :): ?( brainliest to the correct answer/explanation) Suppose you deposit a principal amount of p dollars in a bank account that payscompound interest. If the annual interest rate r (expressed as a decimal) and the bankmakes interest payments n times every year, the amount of money A you would haveafter t years is given by:A = P[1+ (r/n)]"Find the account balance after 20 years if you started with a deposit of $1000, and thebank was paying 4% interest compounded quarterly (4 times a year). Round youranswer to the nearest cent.Answer: The general function of an enzyme in the body is to ________. The general function of an enzyme in the body is to ________. eliminate waste products from the blood act as a reactant in carbohydrate storage catalyze chemical reactions maintain homeostasis maintain a neutral pH An investor purchases a stock for $52 and a put for $0.60 with a strike price of $50. The investor sells a call for $0.60 with a strike price of $58. What is the maximum profit and loss for this position 1. A man decided to buy new furniture from Futuristie Purniture for $2600, Futuriste Vurnituregave the man two choices pay the entire amount in one payment with cash, or pay $1000 as a dewspayment and 1120 per month for two full years in the finanong plan. If the man chooses thefinancing plan, how much more would he payl Please help me with this problem! If anybody answers first in this, i will give brainliest to you! Be the first one to answer this then i will give out a brainliest award to you!Are you sure your that person? I need help i will mark brainliest please The American car battery industry boasts that its recycling rate now exceeds 95%, the highest rate for any commodity. However, with changes brought about by specialization and globalization, parts of the recycling system are moving offshore. This is particularly true of automobile batteries, which contain lead. The Environmental Protection Agency (EPA) is contributing to the offshore flow with newly implemented standards that make domestic battery recycling increasingly difficult and expensive. The result is a major increase in used batteries going to Mexico, where environmental standards and control are less demanding than they are in the U.S. One in five batteries is now exported to Mexico. There is seldom difficulty finding buyers because lead is expensive and in worldwide demand. While U.S. recyclers operate in sealed, mechanized plants, with smokestacks equipped with scrubbers and plant surroundings monitored for traces of lead, this is not the case in most Mexican plants. The harm from lead is legendary I wish to have $10,000 at the end of 8 years in a bank offering a simple interest rate of 7.5% per year. How much should I deposit in the bank? Please ANSWER CORRECTLY! I will give brainliest for CORRECT answer The Department of Education would like to test the hypothesis that the average debt load of graduating students with a bachelor's degree is equal to $17,600. A random sample of 28 students had an average debt load of $18,800. It is believed that the population standard deviation for student debt load is $4800. The is set to 0.05. The confidence interval for this hypothesis test would be ________. what is the main argument in lifeboat ethics Write a paragraph about your favorite book or movie. Use at least six common and sixproper nouns correctly. Justin hires Miguel to sell his baseball glove for $560. As part of their contract, Justin will pay him $100 to conduct the sale. Justin is a _______________________. Group of answer choices What is the slope of the line ? Read and choose the correct option.Juan tiene una herida!de primeros auxilios est en el bao.La etiquetaO La recetaO El botiqunO El farmacutico what is the standard unit used to measure mass? Cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will be inhibited from doing all of the following EXCEPT:________.a) extend pseudopodia b) move vesicles within a cell c) contract muscle fibers d) divide in two Which of these must exist for natural selection to cause change ? select the example that best describes a renewable resource.A.after a shuttle launch, you can smell the jet fuel for hours.B.solar panels generate electricity that keeps the satellites running.C.tractor trailers are large trucks that run on diesel fuel.D. we use our barbeque every night; it cooks with propane.