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
jeyben [28]
2 years ago
10

HELPPP PLEASE !!!!!!!

Physics
1 answer:
vlabodo [156]2 years ago
6 0

Explanation:

a) d = ½.a.t²

200 = ½(4)t²

200 = 2t²

t² = 200/2

t² = 100

t =√100 = 10 s

b) Vt = a. t

= 4(10)

= 40 m/s

c) V av. = d/t = 200/10 = 20m/s

You might be interested in
What is the force of repulsion between two points positive charges 5 and 8 separated at a distance of 0.02m apart
Zinaida [17]

Explanation:

F =(frac{1}{4{pi}{varepsilon}_o}) x (frac {q_1q_2}{r^2})

F =(frac {5 {times} 10 {times} 8 {times} 10}{0.002 {times} 0.002}) x 9 x 10

F = 900N

4 0
2 years ago
If Isaiah is driving his new car on the highway, and goes 103.5 meters in 5.5 seconds,
Andrej [43]

Answer:

103.5m/5.5s= 18.8m/s

Explanation:

Formula for finding velocity average is:

v average= change in x(meters)/ change in time(seconds).

4 0
3 years ago
A characteristic of matter that can be observed without changing the identity of the matter is a_______________.
ludmilkaskok [199]

Answer: A characteristic of matter that can be observed without changing the identity of the matter is a physical property.

Explanation:

A property that does not bring any change in chemical composition of a substance are known as physical properties.

For example, shape, size, mass, volume, density, etc of a substance are all physical properties.

Whereas a property that changes chemical composition of a substance is known as chemical property.

For example, precipitation, reactivity, toxicity etc are chemical property.

A chemical change cannot be reverted back.

Therefore, we can conclude that a characteristic of matter that can be observed without changing the identity of the matter is a physical property.

3 0
3 years ago
How do you find final speed of two objects that sticked together after colliding on an frictionless inclined plane?
Nady [450]

Explanation:

sorry please can jspme one pleasejhe

5 0
2 years ago
Nearly all volcano and earthquakes activity happen where
Bess [88]
They usually occur at “The Ring of Fire”
8 0
3 years ago
Read 2 more answers
Other questions:
  • Red cabbage juice can be used as an acid-base indicator. When a solution is highly acidic, the juice turns red. As the acidity d
    11·2 answers
  • If you are lying down and stand up quickly, you can get dizzy or feel faint. This is because the blood vessels don’t have time t
    10·1 answer
  • Starting at 1.0 m/s, a cheetah runs with a constant acceleration for 4.8 s reaching a speed of 28 m/s. What is the acceleration
    9·1 answer
  • Momentum has a _____.<br> a. direction only<br> b. magnitude only<br> c. direction and magnitude
    14·2 answers
  • When you don't have enough room to stop, you may _______ to avoid what's in front of you.
    12·2 answers
  • True or false the molecular formula for ibuprofen is the same as the empirical formula
    14·1 answer
  • Name
    12·2 answers
  • An egg is Free Falling Down from a nest in a tree (neglect air resistance)​
    11·1 answer
  • The phrase change in which a substance changes from a gas directly to a solid is
    12·1 answer
  • How does light behaves when light passes through water?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!