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Lina20 [59]
3 years ago
15

Which of the following is a benefit of physical activity?

Physics
2 answers:
IgorC [24]3 years ago
8 0
The answer should be : b
zaharov [31]3 years ago
5 0

Answer:

B

Explanation:

better concentration

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Patients with brain tumors may elect to have a procedure known as Gamma Knife. In a typical Gamma Knife procedure gamma rays are
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Thinking not sure but gammer rays are high energy and may cause damage to healthy cells

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4 years ago
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How do simple machines make work easier? A. They add energy to the work. B. They change the strength or direction of a force. C.
WINSTONCH [101]
Your answer is A. They add energy to the work.
6 0
3 years ago
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Find the temperature of a mixture obtained by mixing 32 grams of water at a temperature of 22 degrees Celsius with 88 grams of w
fomenos

Answer:

60.87 °C

Explanation:

Applying,

Heat lost = heat gain

cm'(t₂-t₃) = cm(t₃-t₁).............. Equation 1

Equation 1 can futher be simplified to

m'(t₂-t₃) = m(t₃-t₁)................Equation 2

Where m' = mass of the hot water, m = mass of the cold water, t₁ = initial temperature of the cold water, t₂ = initial temperature of the hot water, t₃ = temperature of the mixture.

From the question,

Given: m' = 88 g, m = 32 g, t₁ = 22°C, t₂ = 75°C

Substitute these values into equation 2

88(75-t₃) = 32(t₃-22)

6600-88t₃ = 32t₃-704

32t₃+88t₃ = 6600+704

120t₃ = 7304

t₃ = 60.87 °C

6 0
3 years ago
suggest why it is better to use light gates and a computer than to use a stopwatch and a ruler to measure the speed of a toy car
grandymaker [24]

Human response times are eliminated from time measurement using light gates. if the stopwatch is damaged, the data logger terminates it.

<h3>What is speed?</h3>

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while u for the final speed. its si unit is m/sec.

To measure the speed of a toy automobile, it is preferable to utilize light gates and a computer as opposed to a stopwatch and a ruler.

Because Light gates eliminate the effects of human reaction delays for measuring time. is damaged,

The stopwatch is stopped by the data logger. With no reaction time, the uncertainty is substantially reduced.

The average speed may be determined by measuring the distance between the two light gates.

Hence, it is better to use light gates and a computer than to use a stopwatch and a ruler to measure the speed of a toy car.

To learn more about the speed refer to the link;

brainly.com/question/7359669

#SPJ1

3 0
2 years ago
Why are input and output good words to use when discussing systems
lisabon 2012 [21]

Answer:

They are good terms to use for the inside and outside system because input refers to the inside parts and output refers to the outside parts .

8 0
3 years ago
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