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3 years ago

Which example would most likely decrease friction?

Physics

1 answer:

andreev551 [17]3 years ago

7 0

Answer:

using cleats other than gym shoes

Explanation:

the cleats hwve spikes and help gain speed

You might be interested in

How does the expansion of the universe support the big bang theory ?

garik1379 [7]

Because when the explosion is still occurring and is making the universe bigger

6 0

3 years ago

The voltage V in a circuit that satisfies the law V = IR is slowly dropping as the battery wears out. At the same time, the resi

Anastasy [175]

Answer:

$-0.5\times 10^{-4} A/s$

Explanation:

We are given that

$\frac{dV}{dt}=-0.01 V/s$

R=600 ohms

I=0.04 A

$\frac{dR}{dt}=0.5ohm/s$

$V=IR$

$\frac{dV}{dt}=\frac{\partial V}{dI}\frac{dI}{dt}+\frac{\partial V}{dR}\frac{dR}{dt}$

$\frac{dV}{dt}=R\frac{dI}{dt}+I\frac{dR}{dt}$

Substitute the values

$-0.01=600\times \frac{dI}{dt}+0.04\times 0.5$

$-0.01-0.04\times 0.5=600\frac{dI}{dt}$

$-0.03=600\frac{dI}{dt}$

$\frac{dI}{dt}=\frac{-0.03}{600}=-0.5\times 10^{-4}A/s$

5 0

4 years ago

A bowler throws a ball down the lane toward the pins. The ball reaches the pins and slowly moves through them, knocking down the

Iteru [2.4K]

Answer:

First one

Explanation:

Maybe because example if a ball that has less mass bounces higher than the one w/more , then a bowling ball should be able with more force.

hope that helped:/

6 0

3 years ago

Two magnets are sliding towards each other. One of the magnets, which has a mass of 125 grams, is moving in the positive x-direc

olasank [31]

Answer:

0.45 m/s in the negative x-direction

Explanation:

From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum

Momentum, p=mv where m is the mass and v is the velocity

$m_1v_1+m_2v_2=(m_1+m_2)v_c$ where $v_c$ is the common velocity, $v_1$ and $v_2$ are velocities of magnet moving in positive x-direction and magnet moving in negative x-direction respectively, $m_1$ and $m_2$ are masses of magnet moving in positive x-direction and magnet moving in negative x-direction respectively.

Substituting 125 g for $m_1$ and 85 g for $m_2$ , 7.33 m/s $v_1$ , -11.9 m/s for $v_1$ then

$125 g\times 7.33 m/s + (85 g\times -11.9)=(125 g+ 85 g)\times v_c$

$-95.25 g. m/s=210 g v_c$

$v_c=\frac {-95.25 g.m/s}{210 g}=-0.453571429 m/s
\approx -0.45 m/s$

Therefore, the velocity of single unit is 0.45 m/s in the negative x-direction

5 0

3 years ago

The Earth's place in space can be described as _________.

Olin [163]

The answer is B because if you use process of elimination, you find that A is invalid because Venus is the second planet. C is out because Mars is the 4th planet. D is out because we are nowhere near the Andromeda Galaxy. We are millions of light years away.

4 0

3 years ago

Read 2 more answers