PHYSICS HIGH SCHOOL

Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s2.

Answers

Answer 1

Answer:

Answer:

F = 18.9 N

Explanation:

m = 0145 kg

a = 130 m^2

F = ma = (0.145kg)(130m/s^2) = 18.9N

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A geologist finds a layer of rock that is coarse-grained granite.What type of rock did the geologist find? A.extrusive igneous rock B.intrusive igneous rock C.foliated metamorphic rock D.nonfoliated metamorphic rock
All of the following are long-term risks associated with exposure to secondhand smoke EXCEPT:a. increased risk of respiratory illness b. increased risk of lung cancer c. change in senses d. increased risk of cardiovascular disease In what year were cigarette packages made to include 6 warning labels that mentioned the surgeon general
Light is traveling through the different media shown. In which medium does light travel fastest?
If you push down on a table with a force of 5 newtons, what is the normal force pushing back on you?
A boat loaded with a barrel of water floats in a swimming pool. When the water in the barrel is poured overboard, the swimming pool level will _____.Question 6 options:fallremain unchangedrise

The Milankovitch cycles may have changed Earth's climate in the past. These cycles involve _____.volcanic activity on Earth
plate tectonics
Earth's tilt and orbit
sunspots

Answers

The Milankovitch cycles describe the effects of changes in Earth's movement on the climate over a long period of time. These cycles involve variations in things such as eccentricity (orbital shape), axial tilt along with axial precession. This results in changes in the solar radiation which reaches the Earth and thus affects the climate. The correct answer is Earth's tilt and orbit.

I had a different quiz, different question, same answer:

Which of these contributes to the creation of Milankovitch cycles?

B:Changes in Earth's axial tilt

What is the relationship between a revolution and an orbit?

Answers

Both are in motion, however the Earth rotates on its axis while it Revolves around the Sun.

"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

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.

Answers

Answer:

$4.8\cdot 10^(-19) C$

Explanation:

For a drop in equilibrium, the weight is equal to the electric force (in magnitude):

$W = F_e$

where here we have

$W=1.00\cdot 10^(-14)N$ is the weight of the drop

$F_e$ is the magnitude of the electric force, which can be rewritten as

$F_e = qE$

where

q is the charge of the oil drop

$E=2.08 \cdot 10^4 N/C$ is the magnitude of the electric field

Substituting into the equation and solving for q, we find the charge of the oil drop:

$q=(W)/(F_e)=(1.00\cdot 10^(-14)N)/(2.08\cdot 10^4 N/C)=4.8\cdot 10^(-19) C$

Which element of art creates edges of shapes and visual cues for the viewer in terms of both motion and space?a. emphasis
b. form
c. line
d. unity

Answers

The element of art that creates edges of shapes and visual cues for the viewer in terms of both motion and space is line. The correct option among all the options that are given in the question is the third option or option "c". The lines have the ability to create a sense of motion when drawn in spaces.

The correct answer for the question that is being presented above is this one: "c. line." The element of art creates edges of shapes and visual cues for the viewer in terms of both motion and space is the line. Line is one of the basic elements of art.

An optical telescope is an instrument that collects and _____.A. focuses light from very small objects

B. focuses light from distant objects

C. reflects light from distant objects

D. stores heat from distant objects

Answers

Answer: The correct answer is option (B)

Explanation:

Telescope is an optical device which is designed to make distant object appear nearer. It contains combination of lenses and mirrors which collects the light rays and focus them as the as magnified image.

An optical telescope is a telescope which is used to gather and focus light from visible region of the electromagnetic spectrum to form a magnified image or a photograph of distant objects .This image can be seen by the observer.

Hence ,the correct answer is option(B).

An optical telescope is an instrument that collects
and focuses light from distant objects

1 poinWhat exercise could you do that works on cardiovascular endurance and
muscular strength?*
Bicep Curls
Dips
Stairs
Squats
O Other:

Answers

stairs!

stairs are a great cardiovascular endurance exercise, and also help muscular strength in the legs and core.

hope this helps!

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