1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dolphi86 [110]
3 years ago
5

Hi guys this is my last points and i need some answers :)

Physics
1 answer:
Zinaida [17]3 years ago
6 0

Answer:

Number 1: B  Number 2: D

Explanation:

You might be interested in
What can one say for sure about element #99, Einsteinium (Es))? a) There's no such element! b) It is an alkali metal. c) It is r
Dmitrij [34]

Answer:

Option (C)

Explanation:

Einsteinium is an element of the periodic table grouped in the Actinide series, with atomic number 99. They are dense element and highly electro-positive. <u>They are highly radioactive</u>, i.e the atoms within the element are unstable and constantly decay until they reach a stable environment. It has 99 number of electrons and protons, 153 number of neutrons.

Due to its high radioactivity, they are health hazardous and can used in making nuclear weapons but their uses are very limited and unknown.

Thus, the correct answer is option (C).

8 0
3 years ago
Suppose a man pushes a crate with a force of 20 N north. What is the magnitude and direction of the reaction force?
Goryan [66]

20 N north because He is pushing it 20 newtons north.

5 0
2 years ago
If you walk at an average speed of 5 km/h for 30 minutes, how
Inessa05 [86]

The distance that would be accumulated during the journey is 2.5 meters

The parameters given in the question are  written below;

average speed= 5 km/hr

time = 30 minutes

convert 30 minutes to hours

= 30/60

= 0.5 hours

Distance-= speed × time

= 5 × 0.5

= 2.5 meters

Hence the distance of the entire journey is 2.5 meters

Please see the link below for more information

brainly.com/question/24268730?referrer=searchResults

3 0
2 years ago
Electricity costs 10p per unit. How much will it cost Sam to use a 85W laptop and a 60W lamp for an hour?
Goryan [66]
The standard unit is KW/hr, = 1,000W/hr.
(85 + 60) = 145W.
You need to find its fraction of 1,000W., so (145/1000) = 0.145 KWH.
(0.145 x 10p) = 1.45p. per hr.
6 0
2 years ago
This questions pls help
abruzzese [7]

Answer:

1. True

2. False

3. True

4. True

5. False

7 0
2 years ago
Read 2 more answers
Other questions:
  • Use the IUPAC nomenclature rules to give the name for this compound - SiO2
    13·2 answers
  • The case whereby sound waves are heard at either a higher or lower pitch due to an object's motion is called:
    14·2 answers
  • Explain in 3 or 4 sentences how materials are sorted by nature.
    5·1 answer
  • When should you use a piece of pipe as a leverage extension on the handle on a wrench?
    5·1 answer
  • An automobile with 0.500 m radius tires travels 80,000 km before wearing them out. How many revolutions do the tires make, negle
    5·1 answer
  • Receiving delicious food is to escaping electric shock as ________ is to ________.
    10·1 answer
  • Which term describes the number of thoughs that pass a point in a given amount of time
    10·1 answer
  • The distance between Neptune and the Sun is 30.06 AU. What is this distance in millions of kilometers? (One AU is about 150 mill
    10·2 answers
  • What is the speed that is measured in speedometer to track speed violation?
    5·1 answer
  • A 17.0-m-high and 11.0-m-long wall and its bracing under construction are shown in the figure. Calculate the force, in newtons,
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!