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3 years ago

Objects with less density than water will?

Physics

1 answer:

ruslelena [56]3 years ago

6 0

Objects with less density than water will float when you put them in water.

Objects with greater density than water will sink when you put them in water.

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An 80.0 kg hiker walks a distance of 400.0 m along a road that slopes 5.0 degrees upward, and then stops. What is the hiker's fi

lana66690 [7]

The height difference is found by
$\delta H=400sin(5 \°)=34.86m$
Then the change in potential energy is
$E=mgh=(80.0kg)(9.8 \frac{kgm}{s^2})(34.86)= 27332J$

4 0

3 years ago

A pendulum with a length of 1.00 m is released from an initial angle of 12.5°. After 1 000 s, its amplitude has been reduced by

Viefleur [7K]

Answer:

A student is conducting a pendulum experiment. Which of the following pieces of safety equipment would be the most vital to conduct this test?

Explanation:nduebidndo eyn h ehj jd

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3 years ago

If an ice skater with a mass of 50 kg was accelerating at 10 m/s and is on her way to hit a

IrinaK [193]

500N

Explanation:

Given parameters:

Mass of skater = 50kg

Acceleration = 10m/s

Unknown:

Force = ?

Solution;

Force is a push or pull on a body. it is given as the product of mass and acceleration:

Force = mass x acceleration

Input the parameters:

Force = 50 x 10 = 500N

She hits the wall with a force of 500N

Learn more:

Force brainly.com/question/3820012

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3 years ago

Which element would have the lowest electronegativity? (1 point)O an element with a large number of valence electrons and a larg

nekit [7.7K]

Answer:

an electron with element with large number of valence electron and large atomic <u>radius</u>

8 0

3 years ago

Una niña está empujando un baúl. El PESO del baúl es de 230 N y el roce es de 50 N, la niña sólo logra ejercer una fuerza de 30

Gre4nikov [31]

Answer:

Su padre necesita aplicar una fuerza de 20 newtons en la misma dirección que la fuerza aplicada por su hija.

Explanation:

Asúmase que el baúl se mueve en una superficie horizontal. La fuerza de rozamiento dada por el problema es la fuerza de rozamiento estático máximo, se requiere una fuerza externa antiparalela a la fuerza de rozamiento estático máximo para que el baúl se empiece a mover. La ecuación de equilibrio de fuerzas horizontales sobre el baúl es:

$\Sigma F = P - f = 0$