All categories

3 years ago

which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

Physics

2 answers:

erma4kov [3.2K]3 years ago

4 0

The duck at 12m/s has a greater speed than the heron which travels at 10m/s

anastassius [24]3 years ago

4 0

Answer:

The speed of duck is greater than the speed of heron.

Explanation:

$Speed(S)=\frac{Distance(D)}{Time(T)}$

Speed of heron : S

Distance covered by herons in 60 seconds = 600 m

D = 600 m . T = 60 seconds

$S=\frac{600 m}{60 s}=10 m/s$

Speed of duck : S'

Distance covered by herons in 5 seconds = 60 m

D' = 60 m . T' = 5 seconds

$S'=\frac{60 m}{5 s}=12 m/s$

12 m/s > 10 m/s

S' > S

The speed of duck is greater than the speed of heron.

You might be interested in

Really easy it's physics.

iragen [17]

I think it’s B because we aren’t looking for Vf

4 0

3 years ago

Read 2 more answers

Initially (at time t = 0) a particle is moving vertically at 7.5 m/s and horizontally at 0 m/s. Its horizontal acceleration is 1

Lelu [443]

Answer:

t = 0.657 s

Explanation:

given,

initial vertical velocity = 7.5 m/s

initial horizontal velocity = 0 m/s

angle = 49◦

using kinetic equation

final velocity in vertical direction

v sinθ = u_y - gt ........................(1)

final velocity in horizontal direction

v cosθ = u_x + a_x × t

here u_x = 0.0 m/s

v cosθ = a_x×t ......................(2)

Dividing equation (1) / (2)

$tan \theta =\dfrac{u_y - gt}{a_x\times t}$

solving for time t

$t = \dfrac{u_y}{tan \theta \times a_x + g}$

u_y = initial velocity along x direction

acceleration along a_x = 1.4 m/s²

g = acceleration due to gravity = 9.8 m/s²

θ = 43° , u_y = 7.5 m/s

$t = \dfrac{7.5}{tan 49^0\times 1.4+ 9.8}$

t = 0.657 s

time taken by the particle is t = 0.657 s

6 0

3 years ago

Help me plz science middle school

elena55 [62]

The correct answer is A. He created a way of naming organisms based on genus and species

Explanation:

Carl Linnaeus created a simple but precise system for naming organisms of any species and kind. This system was known as binomial nomenclature and the names of organisms depend on two main elements: the genus and the species. The first element is a broad category that covers species with a common origin, and the second one is the species, which describes organisms that can reproduce and share many common features including DNA sequence. According to this, the correct answer is A.

3 0

4 years ago

_____ can be reduced but it cannot be eliminated.

Sonbull [250]

Heat can be reduced but it cannot be eliminated completely there is some amount if heat energy present even if it is absolute zero(-273degrees Celsius)

3 0

3 years ago

Read 2 more answers

If the amplitude of the waves coming from a light bulb decreased, which would you expect to happen?

jekas [21]

The amplitude of the electromagnetic waves coming from
a light bulb is exactly an indication of the energy carried by
the waves.

If their amplitude decreases, then the waves are carrying less
energy. The brightness of the light decreases, AND the bulb
runs cooler, because it produces less heat.

4 0

3 years ago

Read 2 more answers