PHYSICS HIGH SCHOOL

A graduated cylinder should be read at the top of the meniscus. True

False

Answers

Answer 1
Answer:

Answer:

Explained

Explanation:

A graduated cylinder should be read at the top of the meniscus or the down of the meniscus purely depends upon the kind of liquid used. Water gives a concave meniscus whereas mercury gives a convex meniscus. The measurement should account for the meniscus. Measurement should be taken such that line we are reading must be even with center of the meniscus. From the above explanation we can

If it's Mercury in the graduated cylinder, then the statement is true.

If it's water in the graduated cylinder, then the statement is false.
Answer 2
Answer: -- If it's Mercury in the graduated cylinder, then the statement is true.

-- If it's water in the graduated cylinder, then the statement is false.

Related Questions

The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light'sA. transmission qualities. B. color. C. wave nature. D. particle nature.
A drive find difficulty to drive a car when the ground is cover with ice explain why?
a bullet of mass 40 gm is fired from a gun of mass 8 kg with a velocity of 800 m/s, calculate the recoil velocity of gu
The wave function for a traveling wave on a taut string is (in si units) y(x,t) = 0.340 sin 15πt − 4πx + π 4 (a) what are the speed and direction of travel of the wave? g
Endothermic reactions give off heat as they proceed. a. True b. False

A person walks 25 m west and then 45 m at the angle of 60 degrees north of east what is the magnitude of the total displacement?

Answers


To solve this question, we need to use the component method and split our displacements into their x and y vectors. We will assign north and east as the positive directions.

The first movement of 25m west is already split. x = -25m, y = 0m.

The second movement of 45m [E60N] needs to be split using trig.
x = 45cos60 = 22.5m
y = 45sin60 = 39.0m

Then, we add the two x and two y displacements to get the total displacement in each direction.

x = -25m + 22.5m = -2.5m
y = 0m + 39.0m

We can use Pythagorean theorem to find the total displacement.
d² = x² + y²
d = √(-2.5² + 39²)
d = 39.08m

And then we can use tan to find the angle.
inversetan(y/x) = angle
inversetan(39/2.5) = 86.3

Therefore, the total displacement is 39.08m [W86.3N]

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.A caterpillar tries to climb straight up a wall two meters high, but for every 2 cm up it climbs, it slides down 1 cm. Eventually, it reaches the top. When it reaches the top, it does not pull itself over so it will slide down 1 cm. At this point, the caterpillar was exhausted and fell to the ground. What is the total displacement?

0 up

0 down

0 n/a

199 up

199 down

199 n/a

200 up

200 down

200 n/a

Answers

0 because he did not change his position where he was in the beginning

Answer:

0

Explanation:

Scientists have observed that the average sunspots have increased in the last 50 years. Which of these statements best describes an effect of this increase in sunspots? A) Earth's temperature has become cooler.
B) Earth's temperature has not changed over time.
C) Earth's temperature has become warmer.
D) Earth's temperature has reduced by fifty times.

Answers

Answer:

Earth's temperature has become cooler

Explanation:

The number of sunspots, as you have learned, can indicate whether the sun is in a maximum-activity period or a minimum-activity period. Some scientists believe this can have an overall effect on the climate of Earth.

The right answer for the question that is being asked and shown above is that: "B) Earth's temperature has not changed over time." Scientists have observed that the average sunspots have increased in the last 50 years. The statement that best describes an effect of this increase in sunspots Earth's temperature has not changed over time. 

You check the weather and find that the winds are coming are coming from the west at 15 miles per hour. This information describes wind's velocity, direction, acceleration, or speed?

Answers

Velocity
It is not showing acceleration, or changes in speed
It is showing direction, but not only that
It is showing speed, but not only that

It is showing speed and direction, which is Velocity

Answer:

velocity

Explanation:

Examples of the skills used in science include ____ and ____. a. data, diagrams b. clues, detectives c. facts, inferences d. observations, measurements

Answers

Examples of the skills used in science include measurements and observations. I am pretty sure that the last option is the most suitable one, because it represents main tools that scientists use during the research whereas the rest of represented tools are used in criminal and math issues.

2a. Abecomes
jeep starts from it the
starts from it the state of rest. If its
velocity 60m/s and its take 5 minute: what is the accelera
ution of the jeep
the distanced travelled by
the jeep:​

Answers

\bf \underline{ \underline{Given : }}

  • Initial velocity,u = 0 m/s

  • Final velocity,v = 60 m/s

  • Time taken,t = 5 min = 5 × 60 sec = 300 seconds

\bf \underline{ \underline{</p><p>To \: be \: calculated : }}

Calculate the acceleration ( a ) and distance (s ) covered by the jeep.

\bf \underline{ \underline{Solution : }}

We will first calculate the acceleration of the jeep.

CASE 1 :

By Using first equation of motion ,

\sf \: v = u + at

\sf \star \: Substituting \: the \: values...

\sf\rightarrow \: 60 = 0 + a * 300

\sf \rightarrow \: 60 = 300a

\sf \rightarrow \: 300a = 60

\sf \rightarrow \: a = \cancel (300)/(6)

\sf \rightarrow \: a = 50 \: m {s}^( - 2)

Thus,the acceleration of the jeep is 50 m/s².

Now, Let us calculate the distance travelled by the jeep.

CASE 2 :

By Using third equation of motion ,

\sf {v}^(2) = {u}^(2) + 2as

\sf \star \: Substituting \: the \: values...

\sf \rightarrow \: {60}^(2) = {0}^(2) + 2 * 50 * s

\sf \rightarrow \: 3600 = 100s

\sf \rightarrow \: 100s = 3600

\sf \rightarrow \: s = \cancel(3600)/(100)

\sf \rightarrow \: s = 36 \: m

Thus,the distance covered by the jeep is 36 m .
Other Questions
Millikan measured the electron's charge by observing tiny charged oil drops in an electric field. Each drop had a charge imbalance of only a few electrons. The strength of the electric field was adjusted so that the electric and gravitational forces on a drop would balance and the drop would be suspended in air. In this way the charge on the drop could be calculated. The charge was always found to be a small multiple of 1.60 × 10-19 C. Find the charge on an oil drop weighing 1.00 × 10-14 N and suspended in a downward field of magnitude 2.08 × 104 N/C.
What's the value of 57,281 joules in Btu
Only Women and children can be victims of domestic violence
The model of the universe that suggests that the sun is the center of the universe was first brought by A. Brahe.B. Kepler.C. Ptolemy.D. Copernicus.Can also someone add few facts about this suggestion and its author?