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
Gnesinka [82]
3 years ago
15

Math Focus

Physics
1 answer:
zhenek [66]3 years ago
3 0

Answer: 4.

Explanation:

Use formula v = d / t, where v = speed, d = distance and t = time.

v = 10 / 2.5

v = 4.

You might be interested in
A light ray in air enters and passes through a block of glass. What can be stated with regard to its speed after it emerges from
Alik [6]

Answer:

Speed is same as that before it entered glass.

Explanation:

Given:

A light ray enters and passes through the glass as shown in the diagram.

We have to analyze its speed.

Speed of light in air is 3\times 10^8\ ms^-^1 and speed of light in glass is 2.25\times 10^8\ ms^-^1

Whenever a light ray enters a glass block or slab there is bending of light at the interface of the two media.

So speed of light will decrease in glass medium and again it passes to the air.

So

Speed of light in air will again increase or will be equivalent to the earlier speed when it was entering the glass block.

Finally

Speed is same as that before it entered glass as it in the same medium (air).

6 0
3 years ago
Reply quick pls
Sholpan [36]
The ball was moving for 0.8seconds
This is because 4/5 x 1 = 0.8

Hope this helps and good luckkkk :)
4 0
3 years ago
Help yet again :) A hockey player is skating on the ice at 15km/h. He shoots the puck at 138 km/h according to a radar gun on th
IceJOKER [234]

Answer:

speed of puck acc. to the radar gun = 138 km/h

speed of player = 15 km/h

since the player is in motion when he shoots, the speed of the puck will be the sum of the speed of the player and the speed at which he shot. so,

speed of puck = speed of player + speed of puck acc. to player

138 = 15 + speed of puck acc. to player

speed of puck acc. to player = 138 -15

speed of puck acc. to player = 123 km/h

Brainly this answer if you think it deserves it

7 0
3 years ago
Which scientist saw the atom as a positively charged sphere with negative particles ( electrons ) embedded within?
Zigmanuir [339]
Ernest Rutherford is the answer you are looking for my friend.
5 0
3 years ago
Read 2 more answers
Name the net force between objects that allows a car to travel in a circle
iren [92.7K]
I think centripetal force ☺
6 0
3 years ago
Other questions:
  • If a 42kg rolling object slows from 11.5 m/s to 3.33 m/s how much work does friction do?
    6·1 answer
  • 53. A recently discovered planet has a mass four times as great as Earth's and a radius twice as large as Earth's. What will be
    5·1 answer
  • PLS HELP I NEED THIS BY TODAY
    9·1 answer
  • Car A and Car B are traveling to the same destination. If Car A is traveling slower than Car B, which statement is true?
    12·1 answer
  • You place a +1.00 mC charged object in an electric field of 900 N/C that points due East. Determine the magnitude and direction
    14·1 answer
  • What is the net force required to accelerate a 884 kg car at 2 m/sec2?
    6·1 answer
  • How are mechanical waves caused <br><br> please answer ASAP
    7·2 answers
  • Drag each label to the correct location.
    15·1 answer
  • Two sound waves of equal amplitude interfere so that the compression of one wave falls on the rarefaction of the other.Which sta
    5·2 answers
  • An LDR was placed near a light source. The following results were
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!