All categories

3 years ago

What is the wavelength of a wave?

Physics

1 answer:

zubka84 [21]3 years ago

6 0

Definition: Wavelength can be defined as the distance between two successive crests or troughs of a wave.

You might be interested in

If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t − 16t2. (a) What

romanna [79]

Answer:

s = 400 ft

The maximum height reached by the ball is 400 ft

Explanation:

Given;

Initial vertical velocity v = 160 ft/s

Height function s = 160t - 16t^2 ......1

The maximum height is reached when the change in height with respect to time is zero.

ds/dt = 0

Differentiating the height function;

ds/dt = 160 - 32t = 0

160 - 32t = 0

Solving for t;

32t = 160

t = 160/32

t = 5 seconds

Therefore, the maximum height is at t = 5;

Substituting into equation 1 (the height function)

s = 160(5) - 16(5^2)

s = 800 - 400

s = 400 ft

The maximum height reached by the ball is 400 ft

4 0

4 years ago

The average speed of a car that travels 500 km in 5 hours is

ASHA 777 [7]

Answer:

100km/h

Explanation:

500km/5 = 100km per hour

5 0

4 years ago

Amber applies a net force of 35 N to pull her younger brother (32 kg) in a wagon (3 kg). at what rate does the wagon accerlerate

Ket [755]

Answer:

C. 1.00 m/s^2

Explanation:

We can solve the problem by using Newton's second law:

$F=ma$

where

F is the net force acting on an object

m is the mass of the object

a is its acceleration

In this case, the net force applied by Amber is F=35 N, while the total mass of the brother+the wagon is

$m=32 kg+3 kg=35 kg$

Therefore, we can re-arrange the previous equation to find the acceleration:

$a=\frac{F}{m}=\frac{35 N}{35 kg}=1.00 m/s^2$

6 0

3 years ago

Describe the motion of a swing that requires 6 seconds to complete one cycle. What is its period and the frequency? Round to the

shutvik [7]

Period = 6 seconds and $frequency = 0.167Hz$ .

<u>Explanation:</u>

We have , the motion of a swing that requires 6 seconds to complete one cycle. Period is the amount of time needed to complete one oscillation . And in question it's given that 6 seconds is needed to complete one cycle. Hence ,Period of the motion of a swing is 6 seconds . Frequency is the number of vibrations produced per second and is calculated with the formula of $\frac{1}{t}$ . SI unit of frequency is Hertz or Hz. We know that time period is 6 seconds so frequency = $\frac{1}{t}$