1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
USPshnik [31]
3 years ago
13

Water waves in a shallow dish are 7.0 cm long. At one point, the water moves up and down at a rate of 4.0 oscillations per secon

d. (a) What is the speed of the water waves?
Physics
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

0.28 m/s

Explanation:

From the equation of a moving wave,

V = λf.................. Equation 1

Where V = speed of the water wave, λ = wave length of the water wave, f = frequency of the water wave.

Given: λ = 7.0 cm = 0.07 m, f = 4 Hz.

Substitute into equation 1

V = 0.07(4)

V = 0.28 m/s.

Hence the speed of the water wave = 0.28 m/s

You might be interested in
Vinny is on a motorcycle at rest, 200 m away from a ramp that jumps over a gully. Calculate the minimum constant acceleration Vi
soldier1979 [14.2K]

Answer: 6.25 m/s^2

Explanation:

The distance between Vinny and the ramp is 200m

And he has 8 seconds (At max) to reach that distance.

The initial velocity is 0m/s

The initial position is 0m

Now, we want to find the constant acceleration in order to do this, so suppose that we have a constant acceleration A.

a(t) = A.

To have the velocity, we must integrate over time, and remember that the constant of integration is equal to zero because the initial velocity is zero.

v(t) = A*t

For the position, we integrate again over time.

p(t) = 0.5*A*t^2

And we want to travel 200m in 8 seconds, then:

p(8s) = 200m

0.5*A*(8s)^2 = 200m

A*32s^2 = 200m

A = 200m/32s^2 = 6.25 m/s^2

This is the minimum acceleration in order to do this, if Vinny has a larger acceleration he will travel the 200m in a smaller time.

7 0
3 years ago
A motor lifts a 500kg elevator a height of 100 m at a constant speed in 50 secs. How much power did the motor supply
MA_775_DIABLO [31]

Answer:

9,800 watts

Explanation:

The first step is to calculate the force

F= mg

= 500 × 9.8

= 4,900 N

The next step is to calculate the work done

= 4,900 × 100

= 490,000 joules

Therefore the power can be calculated as follows

Power= work done /time

= 490,000/50

= 9,800 watts

3 0
2 years ago
What is the equation for electric potential
Rama09 [41]

Answer:

The unit of charge is the Coulomb (C), and the unit of electric potential is the Volt (V), which is equal to a Joule per Coulomb (J/C).

Explanation:

4 0
3 years ago
What are some examples of pressure
aniked [119]
Squeezing a ball is one
3 0
3 years ago
When a can is crushed did it undergo a physical change
brilliants [131]
Because even though  the object got crush and misshape it still has the same identity. the identity never change
4 0
3 years ago
Other questions:
  • An electron is located in an electric field of magnitude 600. newtons per coulomb. what is the magnitude of the electrostatic fo
    14·1 answer
  • Factors that influence Wellness
    8·1 answer
  • A boat moves through the water of a river at 4.72 m/s relative to the water, regardless of the boat’s direction. If the current
    15·2 answers
  • The muzzle velocity of an armor-piercing round fired from an M1A1 tank is 1770 m/s (nearly 4000 mph or mach 5.2). A tank is at t
    7·1 answer
  • Which statement best describes longitudinal waves
    10·1 answer
  • Laura is skydiving when at a certain altitude she opens her parachute and
    15·1 answer
  • As a object falls from a high-flying stationary helicopter, its velocity increases and its acceleration ____.
    9·2 answers
  • You throw a football straight up. Air resistance can be neglected. When the football is 4.00 mm above where it left your hand, i
    14·1 answer
  • Can you guys help me with this guestion?
    10·1 answer
  • In part A of the lab we see that the magnetic field of a long straight wire __. a. increases with distance in a linear relations
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!