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1 year ago

A rod of length 30.0cm has linear density (mass per length) given by

Physics

1 answer:

jeka941 year ago

5 0

The distance from the center of mass is as shown in the image:

<h3>What is the center of mass?</h3>

The center of mass, sometimes referred to as the balancing point in physics, is the only location where the weighted relative position of the distributed mass accumulates to zero.
Here is where a force can be applied to produce a linear acceleration without also producing an angular acceleration. When calculations in mechanics are made about the center of mass, they are frequently made simpler. It is a fictitious location where one can suppose that an object's full mass is concentrated to see its motion.
In other words, to apply Newton's equations of motion, the center of mass is the particle equivalent of the provided item.

To learn more about the Center of mass, refer to:

brainly.com/question/8662931

#SpJ4

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Two life preservers have identical volumes, but one is filled with Styrofoam while the other is filled with sand. When the two l

soldier1979 [14.2K]

Answer:

Sand

Explanation:

While the term buoyancy may confuse the reader, the question here is referring to buoyant force.

Buoyant force is the amount of pressure exerted on an object by the liquid it is in. Given by the formula

$F_{b} = V_{o} D_{l} g$

Where

$F_{b}$ = Buoyant Force

$V_{o}$ = Volume of Object submerged in the liquid

$D_{l}$ = Density of Liquid

$g$ = Force of gravity

Since in this question the swimmer with the sand is completely submerged in water, more of the volume of his preserver is under the water hence the buoyant force is greater on it than the swimmer with the Styrofoam (as part of him is not submerged in water)

6 0

3 years ago

A 5kg cat is lifted 2m into the air. How much GPE does it gain

luda_lava [24]

m = mass of the cat being lifted = 5 kg

h = height to which the cat is raised into air = 2 m

g = acceleration due to gravity of earth = 9.8 m/s²

U = gravitational potential energy gained by the cat

Gravitational potential energy gained by the cat is given as

U = m g h

inserting the values in the above equation

U = (5 kg) (9.8 m/s²) (2 m)

U = (5 x 9.8 x 2) (kg m²/s²)

U = 98 J

5 0

4 years ago

An electroscope is a device that has small gold foil strips suspended from a metal rod. A student brings a negatively charged ro

Sever21 [200]

I think it is neutral

4 0

4 years ago

A spaceship approaches the earth with a speed 0.50c. A passenger in the spaceship measures his heartbeat as 9- beats per minute.

JulijaS [17]

Answer:

D) 61 beats per minute

Explanation:

5 0

3 years ago

The push of energy given to electrons in a circuit is known as what ?

Sliva [168]

When a battery is connected to a circuit, the electrons from the anode travel through the circuit toward the cathode in a direct circuit. The voltage of a battery is synonymous with its electromotive force, or emf. This force is responsible for the flow of charge through the circuit, known as the electric current.

6 0

3 years ago