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2 years ago

The len() function counts the total number of key/value pairs stored in a dictionary and returns this value as an integer.

1 answer:

4 0

The statement is True. The len() function counts the total number of key/value pairs stored in a dictionary and returns this value as an integer.

The entire numbers are set of actual numbers that consist of 0 and all effective counting numbers. while, excludes fractions, terrible integers, fractions, and decimals. all the whole numbers are also integers because integers encompass all the positive and negative numbers.

The integers are the set of complete numbers and their opposites. Fractions and decimals are not included in the set of integers. for instance, 2,5, 0,−12,244,−15, and 8 are all integers. The numbers include eight. five,23, and 413 are not integers.

A variety that isn't a whole variety, a negative whole number, or zero is defined as Non-Integer. it's miles any quantity that isn't always protected in the integer set, that is expressed as { … -4, -three, -2, -1, zero, 1, 2, three, four… }. some of the examples of non-integers consist of decimals, fractions, and imaginary numbers.

Learn more about integer here brainly.com/question/17695139

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A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the

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Answer:

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3 years ago

Which statement describes a digital signal?

hoa [83]

Answer:

"It is made of numbers" describes the digital signal.

Explanation:

The digital signal are the electrical signal which is translated into the pattern of bits. The digital signal are always discrete value in every sampling point. The conversion of the programming into the stream or the binary sequence like 0s and 1s. The digital signals never gets weaken over distance but the analog signal gets weakened or impair at distance. The digital signals are consists of one or two value, Timing graph are square waves.

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3 years ago

Read 2 more answers

The drag on a pitched baseball can be surprisingly large. Suppose a 145 g baseball with a diameter of 7.4 cm has an initial spee

kupik [55]

Answer:

<h2>Part A)</h2><h2>Acceleration of the ball is 10.1 m/s/s</h2><h2>Part B)</h2><h2>the final speed of the ball is given as</h2><h2> $v_f = 35.3 m/s$ </h2>

Explanation:

Part a)

As we know that drag force is given as

$F = \frac{C_d \rho A v^2}{2}$

$C_d = 0.35$

$A = \frac{\pi d^2}{4}$

$A = \frac{\pi(0.074)^2}{4}$

$A = 4.3 \times 10^{-3} m^2$

$v = 40.2 m/s$

so we have

$F = \frac{0.35\times 1.2 (4.3 \times 10^{-3})(40.2)^2}{2}$

$F = 1.46 N$

So acceleration of the ball is

$a = \frac{F}{m}$

$a = \frac{1.46}{0.145}$

$a = 10.1 m/s^2$

Part B)

As per kinematics we know that

$v_f^2 - v_i^2 = 2 a d$

$v_f^2 - 40.2^2 = 2(-10.1)(18.4)$

$v_f = 35.3 m/s$

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3 years ago

Which of the following materials could have been found in the giant cloud that formed the solar system?

iren2701 [21]

Liquid and solid water were not in the giant gas cloudr

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3 years ago

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You are going 30 m/s in a car of mass 1000 kg when you reach a red light and stop your car.

Radda [10]

Answer:

Explanation:

The kinetic energy will convert to heat energy (provided the car has friction brakes and not regenerative brakes as might be found on an electric or hybrid) Also<u> assuming level road</u>.

E = ½mv² = ½(1000)30² = 450,000 J

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2 years ago