Draw arrows to show how the forces of thrust,drag,and Gravity act on a racing car as it moves forward

Answer:

The frequency of wave is 4.34 Hz.

Explanation:

We know the relation:

                                 λ = = × ........................................1

where,

            λ= wavelength

            v= velocity of wave

            T= Period of wave

By the definition of period T, you are given that HALF of T is 0.115 s, so

T = 2 × (0.115 s)

   = 0.23 s

Then,

                  λ = v × T

                     = (7.33 m/s) × (0.23 s)

                    ≅ 1.686 m

Now for frequency, return to equation 1,

    =

      =

      = 4.34

The frequency of the wave is calculated as 4.34 Hz.

Answer:

0.230

Explanation:

That's the answer, the one above isn't, I got this answer correct on acellus

c. -98 m/s

The motion of the rock is a uniformly accelerated motion (free fall) with constant acceleration (negative since it is downward). Therefore, we  can find its velocity using the following suvat equation

where

v is the final velocity

u is the initial velocity

g is the acceleration of gravity

t is the time

For the rock in the problem,

u = 0

So, its velocity at t = 10 s is

where the negative sign indicates that the velocity points downward.

d. -490 m

Since the motion is at constant acceleration, we can use another suvat equation:

where

s is the displacement

u is the initial velocity

g is the acceleration of gravity

t is the time

Substituting:

u = 0

t = 10 s

We find the rock's displacement:

where the negative sign means the displacement is downward.

The angular velocity of a clocks second hand, its minute hand, and its hour hand are 0.1047rad/s, 1.745 × 10⁻³rad/s and 1.454 × 10⁻⁴rad/s respectively.

Time period for second hand;

Time period for minute hand;

Time period for hour hand;

Now, we use the relation between angular speed and time period:

Where ω is the angular velocity and T is the time period in seconds.

For Second hand

For Minute hand

For Hour hand

Therefore, the angular velocity of a clocks second hand, its minute hand, and its hour hand are 0.1047rad/s, 1.745 × 10⁻³rad/s and 1.454 × 10⁻⁴rad/s respectively.

Learn more: brainly.com/question/8711708

Second hand:

1 rev per minute = (2π radians/minute) x (1 min/60sec) = π/30 rad/sec

Minute hand:

1 rev per hour = (2π radians/hour) x (1 hr/3600 sec) = π/1800 rad/sec

Hour hand:

1 rev per 12 hours = (2π rad/12 hr) x (1 hr/3600 sec) = π/21,600 rad/sec

As long as the clock is in good working order, and the hands are turning steadily at their normal rate, there is no angular acceleration.