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
Lunna [17]
3 years ago
15

1 st QUESTION: In the raisin experiment what was your first step of the scientific method?

Physics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer: A. ask a question

You might be interested in
Johnny walked to the other side of his building using the following steps: 10 meters North, 20 meters to the West, 40 meters Sou
nataly862011 [7]

<u>Answer: </u>

  Distance traveled = 70 meters

  Displacement = 36.06 meters

<u>Explanation: </u>

 Let north be positive Y and east be positive X

 10 meters north, displacement = 10 j meters

 20 meters west, displacement = -20 i meters

 40 meters south, displacement = -40 j meters

 Total displacement = (10 j - 20 i – 40 j) meters = (- 20 i - 30 j) meters

 Magnitude of displacement = \sqrt{20^2+30^2}=\sqrt{1300}= 36.06 meters

 Distance traveled = 10+20+40 = 70 meters

6 0
3 years ago
Convert an acceleration of 12m/s^2 to km/h^2​
ozzi

Answer:

43.2

because to convert from m/sec to kmph we need to multiply by 3600/1000

4 0
3 years ago
Two samples of water are mixed together.
Anon25 [30]
<h3><u>Answer;</u></h3>

A.75°C

<h3><u>Explanation</u>;</h3>

Let the change in temp of cold water be  x degrees,

while that of  hot water be 100 - x degrees.

Heat exchange =  mcΔt

Ice

Δt = x

m = 0.50 kg

c = 4.18 kJ/kg*°C

Hot water

Δt = 100 - x

m = 1.5 kg

c = 4.18

But;

Heat lost = heat gained

0.50 * c * x = 1.5 * c * (100 - x)          

0.50 *x = 1.5*(100 - x)                          

0.5x = 150 - 1.5x                                  

0.5x + 1.5x = 150 - 1.5x + 1.5x            

2x = 150                                              

x = <u>75° C</u>

Hence; the equilbrium temperature will be 75° C

7 0
2 years ago
Does the mass of a parachute affect terminal velocity?
vovangra [49]

Answer:

The greater weight increases the terminal velocity by acting as an extra force against gravity and air resistance.

6 0
2 years ago
What is the displacement of the runner, whose velocity versus time graph is shown in the Figure, in the first 15.5 s?
muminat

Answer:

10 displacement of the runner

6 0
3 years ago
Other questions:
  • What is the exact time of a full earth rotation?
    5·2 answers
  • A student is trying to calculate the density of a ball. She already knows the mass, but she needs to determine the volume as wel
    6·1 answer
  • What is 6.9x10^7 written is standard form
    9·2 answers
  • Under what condition is it possible for liquid water to have a higher temperature than water vapor when both are in the same con
    10·1 answer
  • A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 m
    9·2 answers
  • What state of matter can easily be compressed (squeezed into a much smaller space)? *
    9·1 answer
  • Distance= 10km due West in 1hour calculate the velocity​
    9·2 answers
  • 2. What gravitational attraction does the moon have on the earth? (mass of earth is 6 x
    6·1 answer
  • The Sun's energy comes from which nuclear reaction?​
    11·2 answers
  • A 2.0 cm thick brass plate (k_r = 105 W/K-m) is sealed to a glass sheet (kg = 0.80 W/K m), and both have the same area. The expo
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!