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3 years ago

The amount of fluid displaced by a submerged object depends on its

Physics

2 answers:

Daniel [21]3 years ago

7 0

The amount of fluid displaced by a submerged object depends on its volume.

Monica [59]3 years ago

5 0

It depends on its volume

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If you apply the same amount of force to a 0.1-kilogram baseball and a 0.05-kilogram tennis ball, which one will accelerate more

DIA [1.3K]

Answer:

The tennis ball.

Explanation:

Because the baseball is heavier, it requires more force to move it, whereas the tennis ball requires less force, so it will move more. Hope that makes sense!

8 0

3 years ago

How to remember physics derivation easier? <br>

polet [3.4K]

Answer:

hmm let's see

Explanation:

ok, ill use the second equation of motion, u see its quite simple

recall that

average velocity= u+v/2

now think of that v like a box you can can call it velocity lol obviously its velocity

now remember the first equation of motion which is

v=u+at now this is inside the box, now you have to replace the v with it

then it becomes u+u+at/2

now u notice there are two initial velocity u know what to do with that

now it becomes

2u + at/2 now since the numerator applies to both then you can simplify it like this

2u/2+at/2

all the same the pont im trying to make is that you can use imaginative ways to mater derivation you can also reverse it if you don't unferstand you can drop your number

7 0

3 years ago

A girl is sitting in a sled sliding horizontally along some snow (there is friction present).

Naddika [18.5K]

Answer:

159 N

Explanation:

The force of friction is a resistive force that acts against an object in motion (or on the verge of moving).

There are two types of force of friction:

Force of static friction: it occurs when the object is still at rest
Force of kinetic friction: it occurs when the object is sliding on a surface and it is in motion

In this problem, we are in the 2nd situation, so we want to calculate the force of kinetic friction.

This force is given by:

$F=\mu_k N$

where

$\mu_k$ is the coefficient of kinetic friction

N is the normal force exerted on the object

For the sled and the girl in this problem,

$\mu_K = 0.25$ is the coefficient of kinetic friction

N = 636 N is the normal force

So the force of friction is

$F=(0.25)(636)=159 N$

8 0

3 years ago

Several large firecrackers are inserted into the holes of a bowling ball, and the 6.3 kg ball is then launched into the air with

Anni [7]

Answer

given,

mass of the ball = 6.3 kg

speed of the ball = 10.4 m/s

angle made with horizontal = 43°

m_a = 1.8 kg v_a = 2.2 m/s

m_b = 1.6 kg v_b = 1.8 m/s

mass of third particle = 6.3 - 1.8 - 1.6

= 2.9 kg

u cos θ = 10.4 x cos 43° = 7.61 m/s

by using conservation momentum along x-axis

6.3 x 7.61 = 1.8 × (-2.2) + 0 + 1.6 × V₃ₓ

V₃ₓ = 32.44 m/s (toward right)

by using conservation momentum along y-axis

0 = 0 + 1.6 x 1.8 + 1.6 × V₃y

V₃y = -1.8 m/s (indicate downward)

velocity of the third particle

$v = \sqrt{32.44^2 + (-1.8)^2}$

v = 32.49 m/s

$tan \theta = \dfrac{-1.8}{32.44}$

$\theta = tan^{-1}(\dfrac{-1.8}{32.44})$

θ = 3.176° (downward with horizontal)

4 0

3 years ago

Orsted found that the needle of a compass could be redirected if placed near a wire carrying current. This illustrated a fundame

cricket20 [7]

Answer:

Orsted found that the needle of a compass could be redirected if placed near a wire carrying current. This illustrated a fundamental physics finding that a <u>magnetic field exerts a force on a charge.</u>

Explanation:

In the Orsted's experiment he placed a magnetized needle next to a conductor through which an electric current was circulating. Incredibly, the needle deviated, evidencing the presence of a magnetic field. The conclusion was that electric currents generate magnetic fields, thus demonstrating the relationship between electric currents and magnetic fields, , which can exert a force on a charge.

4 0

3 years ago