Physics High School

1. The law of reflection states that the angle of _______ is equal to the angle ofreflection

•refraction
•incidence

Answers

Answer 1

Answer:

refraction

Explanation:

but this is easy so why

Related Questions

please help me please please, i will brainliest the right answer

Answers

help with whatttt? there’s nothing

Use what you know about mass and how you use it to calculate force in the following situation. If each washer has a mass of 4. 9 g, then the mass of two washers in kilograms would be. Given that F = ma, and if 4 washers are attached to the string and car instead of 2, then the applied force on the car will be. Recall a = 10 m/s2.

Answers

Considering the change of units and the definition of weight, the mass of two washers would be 0.0098 kg and if 4 washers are attached to the string, then the applied force on the car will be 0.196 N.

Mass of two washers

If each washer has a mass of 4.9 g, then the mass of two washers will be calculated simply by multiplying the mass of 1 washer by the amount you have of them, in this case 2:

4.9 g×2= 9.8 g

Being 1 kg = 1000 g, you apply the following rule of three to make the change of units: if 1000 g equals 1 kg, 9.8 g equals how many kilograms?

[tex]mass=\frac{9.8 gramsx1 kg}{1000g}[/tex]

Solving:

mass= 0.0098 kg

Finally, the mass of two washers would be 0.0098 kg.

Applied force

On the other side, mass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.

The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

Weight is calculated as the product of the object's mass and the value of the gravitational acceleration:

W= m×g

In this case, you know:  

m= 4.9 g×4= 19.6 g= 0.0196 kg → the mass of 4 washers in kilogramsg= 10 m/s²

Replacing:

W= 0.0196 kg× 10 m/s²

Solving:

W= 0.196 N

Finally, if 4 washers are attached to the string, then the applied force on the car will be 0.196 N.

Learn more:

brainly.com/question/15566515?referrer=searchResults brainly.com/question/15271930?referrer=searchResults brainly.com/question/4735812?referrer=searchResults

Answer:

C, B

Explanation:

Other Questions
What is the slope and y-intercept that represents this table? Im 6th grade please help worth points and brainlestSemester 1 Physical Education Assignment:California Physical Education Standard 4 Grade 6Students demonstrate knowledge of physical fitness concepts, principles, and strategies to improve health and performance.Compile and analyze a log noting the food intake/calories consumed and energy expended through physical activity.Instructional Activity: Explain to your student that physical activity is not the only way to maintain a healthy body and mind. Explain that the foods we eat have an effect on our body. It is important to eat a balanced diet with proteins, vitamins, and minerals. Explain to your students that proteins keep your energy high and your belly full. Eggs, Milk, Cheese, Pork, and Chicken all contain protein. Ask your student to think of other healthy foods that contain protein. Vitamins and minerals also work to keep your body healthy and your mind happy. Direct your student to the following website: http://kidshealth.org/teen/food_fitness/nutrition/vitamins_minerals.html Ask your student to look at the vitamin chart and at the mineral chart. What foods did you eat today that contain vitamins and minerals? Assignment: Record what you ate today. Look over the vitamin and mineral chart. Which vitamins and minerals did your food contain? What can we do to increase the amount of healthy vitamins and minerals that we consume? Did you eat protein today? Which foods can we eat that will give our bodies the protein needed for energy and health? Which of the following could best replace the word "domain"in this sentence?The domain of community vitality focuses on the strengthsand weaknesses of relationships and interactions withincommunities.o virtueceo fieldo collectiveO valueIc!Submit How many moles is 7.78 x 1024formula units of MgCl2? What drives subduction at a converging plate boundary? 5) So far you have a MP3 Player with 0.5 GB of music already stored on the MP3 player and know that each song is about 0.002 GB of memory. What are the possible numbers of additional songs that you can put on the MP3 player if it holds at most 2 GB? PLZ HELPGiven the side lengths, determine whether the triangle is acute,right, obtuse, or not a triangle.15,17,21Not a triangleA cute RightObtuse3,9,10Not a triangle AcuteRightObtuse a number decreased by 23% equals 123 Why did people create new tools? A. to use raw materials B. to learn a craft C. to practice new skills D. to make life easier A steep mountain is inclined 74 degrees to the horizontal and rises 3150 feet above the surrounding plain. A cable for a cable car is to be installed from a point 725 feet from the base to the top of the mountain. Find the length of cable needed. The Constitution limits the power of the federal government by: help please! (earth science/heat) True or False (See Image)The remainder theorem can be used to check if a binomial is a factor of a larger polynomial. JKLM is a rhombus. What is the measure of KML?JK369NMLm2KML =#O(numerical response only) The sum of Alyssa's age and her sister's age is 48 years. Alyssa's age is 6 years less than twice her sister's age. What is Alyssa's age, and what is her sister's age? Find the values of x and y that makes these triangles congruent by HL. Please I really need help Ill give brainliest Based on the information in the diagram, which trianglecongruence property can be used to justify that triangle ABC is congruent to triangle FGH? what battle in the pacific did the talkers help win which prophet introduced a third way for the israelites to live in exile? Read this figure of speech. Decide if it is a metaphor or simile.The wind is a warrior.