What role does energy play when an object is not moving?

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A force of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. What is the force acting on the object in the horizontal direction?
A shorter electromagnetic wave is _____. more powerful less powerful hotter colder
Julie's psychologist helped her get over her fear of spiders. Which goal of psychology has the phycologist met ?
What happens when there is a change in pressure at any point in a fluid
for uniform acceleration in rectilinear motion, which of the following is not correct? (a) velocity-time graph is linear (b) acceleration is the slope of velocity time graph (c) the area under the velocity-time graph equals displacement (d) velocity-time graph is nonlinear

What change takes place in a wave when the frequency of the wave increases? A.fewer wavelengths pass a given point per second

B.no change occurs in the number of wavelengths that pass a given point per second

C.a greater number of wavelengths pass a given point per second

D.the number of wavelengths that pass a given point per second doubles

Answers

The answer is C. As the frequency of the waves increases, a greater number of wavelengths pass a given point per second. From the wave formula, we see that there is an indirect relationship between frequency and the wavelength. thus, as the frequency increases the wavelength decreases resulting to a smaller distance between the waves which will show greater number of wavelengths between waves.

How far can a bike rider traveling at 5.2 m/s go in 15 seconds

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If he's traveling at 5.2 m/s, then he covers
5.2 meters in the 1st second
5.2 meters in the 2nd second
5.2 meters in the 3rd second
5.2 meters in the 4th second
.
.
.
.
5.2 meters in the 14th second, and
5.2 meters in the 15th second.

He covers 5.2 meters 15 times in 15 seconds.
To find the total distance, you could write down 5.2 meters
15 times and add them all up. Or you could use the newly-
discovered, labor-saving process called 'multiplication' to do
the same thing. With multiplication, it can be done in one line:

(5.2 m/s) x (15 sec) = 78 meters .

The collision of two plates causes the formation of

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the collision of two plates causes the formation of MOUNTAINS

Suppose you are standing in front of a concave spherical mirror. Which of the following image properties are possible? Your image is upright.Your image is inverted.

Your image is enlarged.

Your image is reduced.

Your image is real.

Your image is virtual.

All of the above.

Answers

Answer:

All are correct

Explanation:

A concave spherical mirror produces both types of images real and virtual of an object.

The concave spherical mirror forms a real image when the object placed between the focus and infinity.

The concave spherical mirror forms a virtual image when the object is placed between focus and the pole of the mirror.

So, it forms real and virtual both types of images and it forms the image size is more than object size, equal to object size and less than the object image.

All the options are correct.

In a game of darts, the dart thrower releases the dart directly at the center of the target (the "bull’s eye") with a speed of 13.0 m/s, and the dart strikes the wall, 0.23 m directly below the center of the target. How far from the wall, along the x-axis, was the dart released?

Answers

Answer:2.81 m

Explanation:

Given

speed(u)=13 m/s

dart strikes 0.23 m below

i.e. vertical distance traveled by dart is 0.23 m

considering dart motion similar to Projectile

$h=ut+(at^2)/(2)$

$0.23=0+(9.8t^2)/(2)$

$t=0.216 s$

Horizontal distance travel by dart =u\times t

$=13* 0.216=2.81 m$

The process by which atoms are arranged to form a material with a crystal shape is called

Answers

Explanation:

The process by which atoms are arranged to form a material with a crystal shape is called crystallization.

With the help of crystallization process we can purify a solid compound.

For example, ice and snowflakes occur due to crystallization of water.

In this process, small quantity of desired solvent is added into the impure solid. Then it is heated to let the solid dissolve and after that it is cooled down so that crystals are formed. Then with the help of vacuum filtration pure solid is extracted.

Answer:

Crystallization is the correct answer.

Explanation:

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Fill in the blank with the correct response.Employing the use of a(n) will help you manage a STEM project.

Which of the following refers to the increasing size of deserts worldwide? A. disintegration B. desertification C. decomposition D. disaggregation

Two men decide to use their cars to pull atruck stuck in mud. They attach ropes and one pulls with a force of 515 N at an angle of 31◦ with respect to the direction in which the truck is headed, while the other car pulls with a force of 926 N at an angle of 25◦ with respect to the same direction. What is the net forward force exerted on the truck in the direction it is headed?