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2 years ago

How can you produce more power than an excavator?

Physics

1 answer:

suter [353]2 years ago

8 0

Just do energy spent divided by time to get your answer :). With this we can say a human might be able to!

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In a series circuit with three resistors connected to a power source, what would happen to the equivalent resistance and current

igor_vitrenko [27]

Answer:

The equivalent resistance would decrease and the current would increase.

Mark me as the brainlyest

3 0

2 years ago

Read 2 more answers

A dog pulls on a leash with a force of 15 23 is a big dog. The leash makes an angle of 36.7 degrees to the horizontal. What are

ch4aika [34]

Answer:

$x = 12.027N$ and $y = 8.964N$

Explanation:

The first sentence of this question is not explanatory enough. However, I'll assume the force to be 15N

$Force = 15N$

$\theta = 36.7$ to the horizontal

Required

Solve for the x and y components

Since the given angle is to the horizontal, the x and y coordinates are calculated using the following illustrations.

$Sin\theta = \frac{y}{Force}$ ---- y component

$Cos\theta = \frac{x}{Force}$ ---- x component

Calculating the y component.

Substitute 15 for Force and 36.7 for $\theta$

$Sin\theta = \frac{y}{Force}$ becomes

$Sin(36.7) = \frac{y}{15}$

Make y the subject

$y = 15 * Sin(36.7)$

$y = 15 * 0.5976$

$y = 8.964N$

Calculating the x component.

Substitute 15 for Force and 36.7 for $\theta$

$Cos\theta = \frac{x}{Force}$ becomes

$Cos(36.7) = \frac{x}{15}$

Make y the subject

$x = 15 * Cos(36.7)$

$x = 15 * 0.8018$

$x = 12.027N$

Hence, the x and y components of the force are: 8.964N and 12.027N respectively.

6 0

2 years ago

At the end of a bike ride up a mountain, Chris was at an elevation of 500 meters above where he started. If Chris's mass is 60kg

lawyer [7]

294000J

Explanation:

Given parameters:

Height of hill = 500m

Mass of Chris = 60kg

Unknown:

Potential energy increase = ?

Solution:

Potential energy is the energy by virtue of the position of a body.

Potential energy = mgh

m is the mass of the bike

g is the acceleration due to gravity

h is the height

At the base of the hill,

P.E = mgh = 60 x 9.8 x 0 = 0J

At the top:

P.E = mgh = 60 x 9.8 x 500 = 294000J

Potential energy increase = 294000J - 0J = 294000J

learn more:

Potential energy brainly.com/question/10770261

#learnwithBrainly

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3 years ago

BRAINLIST A wave travels at a constant speed. How does the wavelength change if the

Studentka2010 [4]

I think it will be (c)

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2 years ago

Why doesn't the skateboarder rolls as high up the ramp each time you go down the ramp

Alexandra [31]

Because of the law of inertia and it’s effect on the skater

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3 years ago