PHYSICS HIGH SCHOOL

A car with a mass of 1800 kilograms is traveling at a speed of 29 m/s on a horizontal flat road. Calculate the radius of its path. Which formula must be used to solve this?

Answers

Answer 1

Answer:

Explanation:

r = v^2 / g

where:

r is the radius of the path (in meters)

v is the speed of the car (in meters per second)

g is the acceleration due to gravity (in meters per second squared)

In this case, v = 29 m/s and g = 9.81 m/s^2. Therefore, the radius of the car's path is:

r = 29^2 / 9.81 = 82.5 meters

So the answer is 82.5

15N

Explanation:

The choices for this question are

7.2 N
15.0 N
70.6 N
85.6 N

Givens

$m=7.2kg$

$W=70.6N$

$v=1 m/s$

$F=15N$

However, to solve this we just need to use Newton's third law which states: "When an object exerts a force on another object, the second object will exert an equal and opposite force to the first object".

If the bowling ball strikes a pin with a force of 15N, then the pin will exert the same 15N on the bowling ball, but with the opposite direction. If the bowling force is positive, then the pin force will be negative.

Therefore, the right answer is the second choice 15N.

Imagine that current is flowing couterclockwise around a squre loop of wire in front of you

Answers

Answer: The loop's right side approaches you.

How do geologist locate the epicenter of an earthquake?

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by taking measurements from 3 seismograms.

Select all that apply. Choose the statement(s) that best describe Earth's hydrologic, rock, and tectonic cycles.a. They continuously recycle Earth's materials.
b. They contribute to a balance or equilibrium of Earth's materials.
c. Old material is disposed of, never to be used again, and new material is created.
d. The cycles are powered by the earth's rotation and orbit.

Answers

Answer: a. They continuously recycle Earth's materials.

b. They contribute to a balance or equilibrium of Earth's materials.

Earth's hydrologic cycle involves the cycling of water. A natural replenishment process of water. Rock and tectonic cycles causes replenishment of rocks and geospheres. These cycles allows the generation of new materials. They contribute to a balance or equilibrium of Earth's material, for example magma release from earth crust during volcanic eruptions can destroy all nearby and superficial rocks, but when the magma solidifies to form new rocks. Therefore, materials which are destroyed are again created hence, equilibrium remains maintained.

Answer:

. They continuously recycle Earth's materials.

b. They contribute to a balance or equilibrium of Earth's materials.

Explanation:

A truck crossing a bridge causes the bridge to vibrate. The bridge ceases to vibrate after the truck crosses. This is an example of _____.

Answers

an example of forced vibrations

True or false An upward fold in a rock is called a plateau.

Answers

That statement is false. An upward fold on a rock is acalled an anticlinea typical anticline is convex up in which the hinge or crest is located where the curvature is the greatest and the limbs are the side of the fold that dip away from the hinge

Final answer:

An upward fold in rock is not a plateau, but is termed an anticline. They form when two continental masses collide, causing the Earth's crust to fold and buckle, forming many of the world's mountain ranges.

Explanation:

False, an upward fold in a rock is not called a plateau but is termed as an anticline. The formation of this kind of structure occurs when two continental masses are in a collision course moving towards each other. They push against each other under great pressure causing the Earth's crust to buckle and fold. Some rock gets dragged deep below the surface while other folds are elevated to heights of many kilometres. This upward fold or anticline, is how many mountain ranges on Earth were formed, such as the Alps which resulted from the African plate bumping into the Eurasian plate.