Suppose that you are riding a bike away from your dog who sits and watches you leave. If you use the bicycle as a reference frame, how does your dog appear to move?

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Answer 1

Answer: If you use the bicycle as a reference frame, your dog will appear to be moving backwards farther from you/your bicycle. Although the dog is sitting on one place, your bicycle is moving away from the dog.

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Which of these units results when a distance of 35 m is multiplied by a force of 27 n, and then divided by a time of 5s? a newtom n is kg * m/s2 in si base units?

Answers

Answer:

SI unit for Joule per second is $(kg m^(2) )/(s^(2) )$ .

Explanation:

When a distance of 35 m is multiplied by a force of 27 N.

Force × distance = 27 N × 35 m = 945 Joule

945 Joule = 945 $(kg m)/(s^(2) ) * m$

945 joule = 945 $(kg m^(2) )/(s^(2) )$

This is SI unit for force multiplied by distance.

The above quantity is divided by 5 s.

$(945)/(5) (Joule)/(s)$ = 189 $(kg m^(2) )/(s^(3) )$

SI unit for Joule per second is $(kg m^(2) )/(s^(2) )$ .

Answer:

$(F * d)/(t) = 189 (kg m^2)/(s^3)$

Explanation:

Here first we multiplied the force with the distance so we have

F = 27 N

distance = 35 m

so the product is given as

$F* d = 27 N * 35 m$

$F* d = 945 N m$

now we have to divide it by time

so we have

$(F * d)/(t) = (945)/(5)$

$(F * d)/(t) = 189 Nm/s$

so it is

$(F * d)/(t) = 189 (kg m^2)/(s^3)$

a stroller is pushed from rest, accelerating at 500m/s. what is the velocity after it has traveled 6.32m?

Answers

The velocity a stroller is pushed from rest, accelerating at 500m/s is 7.5 m/s.

To find the final velocity of the stroller after it has traveled a certain distance while accelerating, one can calculate it using the third equation of motion:

v²-u² = 2as

The third equation of motion is one of the equations used in classical physics to describe the motion of an object with constant acceleration.

Given:

Acceleration, a = 500 m/s²

Distance, s = 6.32 m

The velocity is computed as:

v² - 0² = 2 × 500 × 6.32

v² = 6320

v = 79.5 m/s

Hence, the velocity a stroller is pushed from rest, accelerating at 500m/s is 7.5 m/s.

To learn more about velocity, here:

brainly.com/question/17959122

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A mixed dentition usually consists of

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During childhood a mixed dentition refers to the period when a person has both baby) teeth and permanent (adult) teeth in their mouth. This stage occurs as children start losing their baby teeth and new permanent teeth gradually take their place. It's a part of development that lasts for several years until all the primary teeth are replaced by permanent ones.

The density of seawater is 1.025 g/ml. what is the mass of 1000 liters of seawater in g amd kg?

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You are giventhe density of seawater which is 1.025 grams per milliliters and its volume at1000 liters. You are required to find the mass of the seawater in grams andkilograms. You need to know that density is equal to mass over volume. Let usdenote D as our density, V our volume and M as our mass. So,

D = M/V
M = D*V
M = (1.025g/mL)(1000 L)(1000mL/1L)
M =1,025,000 g
To changeinto kilograms, simply divide it by 1000
M = (1,025,000g)(1kg/1000g) = 1,025kg

Which best compares a brush and a commutator in an electric motor?

Answers

The purpose of the brush is supposed to be to lessen the amount of damage or wear placed upon the motor. I hope this helps with your answer choices since you did not post any.

3 The components of a 15-meters-per-secondvelocity at an angle of 60.° above the horizontal
are
(1) 7.5 m/s vertical and 13 m/s horizontal
(2) 13 m/s vertical and 7.5 m/s horizontal
(3) 6.0 m/s vertical and 9.0 m/s horizontal
(4) 9.0 m/s vertical and 6.0 m/s horizontal

Answers

First draw a picture to help make the problem easier. (see attached)

Next you can use sin and cos to find the x and y components of the velocity.

First lets find the vertical component:
$sin = (opp)/(hyp)$
$sin(60) = (y)/(15m/s)$
Multiply both sides by 15m/s
$15m/s * sin(60) = y$
y ≈ 13 m/s

Now you can find the horizontal component:
$cos = (adj)/(hyp)$
$cos(60) = (x)/(15m/s)$
Multiply both sides by 15m/s
$15m/s * cos(60) - x$
x = 7.5

Therefore the answer is 2, the vertical (y) component is 13m/s and the horizontal (x) component is 7.5m/s.

The components of the velocity are :

(2) 13 m/s vertical and 7.5 m/s horizontal

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Further explanation

Vector is a quantity that has a magnitude and direction.

A vector in a cartesian coordinate is represented by an arrow in which the slope of the arrow shows the direction of the vector and the length of the arrow shows the magnitude of the vector.

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A position vector of a point is a vector drawn from the base point of the coordinates O (0,0) to that point.

The addition of two vectors can be done in the following ways:

$\overrightarrow {AB} + \overrightarrow {BC} = \overrightarrow {AC}$