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mars1129 [50]
3 years ago
10

speed is the ratio of the distance an object moves to a. the direction the object moves. b. the amount of time needed to travel

the distance. c. the motion of the object. d. the displacement of the object.
Physics
2 answers:
Dennis_Churaev [7]3 years ago
5 0
It is the ratio of distance an object moves to the amount of time needed to travel the distance. Option b.
quester [9]3 years ago
4 0

Option (b) is correct. Speed is the ratio of the distance an object moves to <u>the amount of time needed to travel the distance. </u>

<u> </u>

Further Explanation:

The speed of a body is defined as the rate of the distance covered by the body. It means that the speed is the measure of the amount of distance covered by a body in a particular interval of time.

The mathematical expression for the velocity of a body is given as.

speed = \dfrac{{distance}}{{time}}  

The above mathematical expression shows that the speed of a body is the ratio of the distance covered by the body to the amount of time taken by the body to cover the particular distance.

Learn More:

  1. Choose the 200 kg refrigerator. Set the applied force to 400 n (to the right). Be sure friction is turned off. What is the net force acting on the refrigerator brainly.com/question/4033012
  2. Which of the following is not a component of a lever brainly.com/question/1073452
  3. The amount of kinetic energy an object has depends on its brainly.com/question/137098

Answer Details:

Grade: High School

Chapter: Speed and distance

Subject: Physics

Keywords:  Speed, ratio, distance, displacement, rate of distance, covered by body, time taken, mathematical expression, an object.

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Answer:

0.2 T

Explanation:

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3 years ago
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Beryllium has a charge of 2, and bromine has a charge of –1. which is the best name for the ionic bond that forms between them?
Otrada [13]

The best name for the ionic bond that forms between them is Beryllium Bromide.

We have been provided with data,

Beryllium charge, q = 2

Bromine charge, q = -1

As we know the valance electron of Be is +2  and the valance electron of bromine is -1. Since one is metallic and the other is non-metallic.

Now, when they combine they exchange valance electron, and bromine change into bromide so they form Beryllium Bromide.

So, the best name for the ionic bond that forms between them is Beryllium Bromide.  

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8 0
2 years ago
Plz someone help me Asap​
-Dominant- [34]

Answer:

all I know is C

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-KARL IS STOOPID

Explanation:

6 0
3 years ago
You have a pendulum clock made from a uniform rod of mass M and length L pivoting around one end of the rod. Its frequency is 1
drek231 [11]

The new oscillation frequency of the pendulum clock is 1.14 rad/s.

     

The given parameters;

  • <em>Mass of the pendulum, = M </em>
  • <em>Length of the pendulum, = L</em>
  • <em>Initial angular speed, </em>\omega _i<em> = 1 rad/s</em>

The moment of inertia of the rod about the end is given as;

I_i = \frac{1}{3} ML^2

The moment of inertia of the rod between the middle and the end is calculated as;

I_f = \int\limits^L_{L/2} {r^2\frac{M}{L} } \, dr = \frac{M}{3L} [r^3]^L_{L/2} =  \frac{M}{3L} [L^3 - \frac{L^3}{8} ] = \frac{M}{3L} [\frac{7L^3}{8} ]= \frac{7ML^2}{24}

Apply the principle of conservation of angular momentum as shown below;

I _i \omega _i = I _f \omega _f\\\\\frac{ML^2}{3} (1 \ rad/s)= \frac{7ML^2}{24} \times \omega _f\\\\\frac{24 \times ML^2}{3 \times 7 ML^2} (1 \ rad/s)= \omega _f\\\\1.14 \ rad/s = \omega _f

Thus, the new oscillation frequency of the pendulum clock is 1.14 rad/s.

Learn more about moment of inertia of uniform rod here: brainly.com/question/15648129

3 0
3 years ago
Suppose that sunlight is incident upon both a pair of reading glasses and a pair of sunglasses. Which pair would you expect to b
Ainat [17]

Answer: the pair of sunglasses

Explanation:

A good pair of sunglasses are composed of abosorbent lenses that filter the sunlight that affects the eyes retina, especially ultraviolet (UV). So, these sunglasses are used to reduce the amount of light or radiant energy transmitted.

On the other hand, normal reading glasses (in which the lens glass has not been treated to filter ultraviolet sunlight) will let UV rays pass through.

Therefore, if both glasses are exposed to sunlight, the sunglasses are expected to be warmer by absorbing that radiant energy and preventing it from reaching the eyes.

4 0
3 years ago
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