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3 years ago

What s physics?

2 answers:

7 0

The answer is (B. The study of Matter and Energy) but technically you could consider physics all of these as engineering is based on physics and that would be the study of inventions, chemistry and biology were both discovered because of physics, and physics invokes more math than any other subject as it applies math to the entire Universe.

Montano1993 [528]3 years ago

6 0

The study of matter and energy is physics.

Answer: Option B

<u>Explanation:</u>

Physics is the study of events related to mater and energy. The earth is composed of matter which when reacts forms and releases energy.

Mathematics is the study of calculations and fundamental calculations on arithmetic expressions, whereas chemistry deals with the reaction between two substances. Inventions happen in various fields and therefore it is not particularly restricted to the area of physics alone.

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A particle in uniform circular motion requires a net force acting in what direction?

mel-nik [20]

The net force will point towards the acceleration of the object, as supported by Newton's second law.

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3 years ago

A 9.5 V battery supplies a 3.5 mA current to a circuit for 7.0 h. Part A How much charge has been transferred from the negative

pychu [463]

Answer:

88.2 C

Explanation:

The current can be defined as the rate of flow of charge in a conductor.

The relation between charge current and time is given as

I = Q/T

I = current, Q= charge and T = time

that is ampere = coulomb / second

The amount of charge passed is from the negative to the positive terminal

shall be given by:

Q = I * t = 3.5mA * 7h * 3600s/h = 88.2 C

Note: take care of the units.

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3 years ago

A boy is using a rope to pull a sled to the left on a horizontal surface. The rope is parallel to the surface. What are the dire

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Answer:

Explanation:

Check attachment

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3 years ago

A race car has a centripetal acceleration of 15.625 m/s2 as it goes around a curve. If the curve is a circle with radius 40 m, w

myrzilka [38]

The centripetal acceleration is given by
$a_c = \frac{v^2}{r}$
where v is the tangential speed and r the radius of the circular orbit.

For the car in this problem, $a_c = 15.625 m/s^2$ and r=40 m, so we can re-arrange the previous equation to find the velocity of the car:
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3 years ago

Brandon buys a new Seadoo. He goes 22 km north from the beach. He then goes 11km to the east. Then chases a boat 3 km north. Wha

KIM [24]

Answer:

36kms

Explanation:

22+1=33

33+3=36

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3 years ago