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
leva [86]
3 years ago
12

1. To describe the length of a classroom, a student should use what? A) centigrams B) centimeters C) kilometers D) meters 2. Whi

ch is a standard metric base unit, correctly matched with what it measures?
A) Kelvin: time B) second: time C) meter: volume D) gram: temperature A tectonic plate near Niihau, an island in Hawaii, grows at an average rate of 11 cm/year. How many centimeters will the plate grow in 2 years?
A) 2 cm B) 11 cm C) 22 cm D) 30 cm The plate near the Artic Ridge is among those with the slower growth rates, moving slightly less than 2.5 cm/year. How much will the plate move in 10 years? A) less than 5 cm B) equal to 25 cm C) less than 25 cm D) greater than 25 cm
Physics
2 answers:
Gemiola [76]3 years ago
7 0
1).  To describe the length of a classroom, a student can use any unit
he feels like using.  Some units will produce ridiculous numbers, though. 
The most convenient numbers will result from using meters or centimeters. 
If the room is, say, 20 feet long, then that's about 0.0061 kilometer, or
about 610 centimeters, or about 6.1 meters.
Meters is probably best.

2).
A). Kelvin: time.       No.  Kelvin is a unit of temperature.
B). second: time    Yes.  Second is a unit of time.
C). meter: volume    No.  Meter is a unit of length or distance.
D). gram: temperature.  No.  Gram is a unit of mass.

3).  A plate near Hawaii grows about 11 cm per year.
So it grows 11 cm in the first year, and another 11 cm in the second year.
The total growth in 2 years is (11cm + 11cm) = 22 cm .

4).  A slower plate in the Arctic moves slightly less than 2.5 cm per year.
It moves ...
slightly less than 2.5 cm in the 1st year
slightly less than 2.5 cm in the 2nd year
slightly less than 2.5 cm in the 3rd year
slightly less than 2.5 cm in the 4th year
slightly less than 2.5 cm in the 5th year
slightly less than 2.5 cm in the 6th year
slightly less than 2.5 cm in the 7th year
slightly less than 2.5 cm in the 8th year
slightly less than 2.5 cm in the 9th year
and
slightly less than 2.5 cm in the 10th year
for a grand total of 
           (slightly less than 2.5 cm x 10) = less than 25 cm in 10 years.

sdas [7]3 years ago
7 0

1 d,   2 b,   3 c,   4 c that is the answer to them

You might be interested in
Mass and Weight: What is the mass of an object that experiences a gravitational force of 685 N near Earth's surface where g
11Alexandr11 [23.1K]

Answer:

m = 69.9 kg

Explanation:

The mass and the weight of an object are two different quantities. Mass is basically the amount of matter that is present in a body. It remains same everywhere in the universe and measured in kilograms.

Weight is basically a force. It is the force by which earth attracts everything towards itself. The weight of an object changes from planet to planet, with the change in value of the gravitational acceleration (g).

Therefore, the relation between mass and weight of an object is given by the following formula:

W = mg

m = W/g

where,

m = mass = ?

W = Weight = 685 N

g = 9.8 m/s²

Therefore,

m = (685 N)/(9.8 m/s²)

<u>m = 69.9 kg</u>

4 0
3 years ago
A student who was training for a cross country race jogged for 2. 0 hours and covered a distance of 14. 0 kilometers. What was t
FinnZ [79.3K]

The average speed is 116.66m/s.

Given - The path traced is 14km , time for jogging is 2 hrs=120min

To find the average speed-

  1. Speed refers to the ease of the movement and degree of mobility as a result of force application.
  2. Due to this there is involvement of velocity.
  3. Journey of average speed is the cumulative of distances and time.
  4. Kinetic theory refers to the Boltzmann constant connecting to the standards of distance traversed.

calculations-

Speed= \frac{Distance}{Time}

Speed= 14 000 / 120

= 116.66m/s

To learn more about average speed -

<u>brainly.com/question/27753148</u>

#SPJ4

6 0
1 year ago
Name three characteristics of scientists that are important to their work but are also found in nonscientists.
Alina [70]

Answer:

The three characteristics of a good scientist are his curiosity, creativity and problem-solving skills.

Explanation:

3 0
3 years ago
Which is not a form of light?
kifflom [539]

Radio waves, Middle-C, and halitosis are not forms of light.

8 0
3 years ago
An object is lifted upward at a constant speed. The gain in potential energy of the object is due to the
Ann [662]

Answer:

b

Explanation:

7 0
3 years ago
Other questions:
  • How is the percent efficiency of a machine determined?
    6·1 answer
  • When a simple machine multiplies force, it decreases
    15·1 answer
  • A dog runs with an initial speed if 7.5m/s on a waxed floor. it slides to a stop in 15 seconds. What is the acceleration ​
    6·1 answer
  • An object is pushed with a force of 50 Newtons and accelerates at 25 m/s2 . What is the object’s mass?
    9·1 answer
  • The electrons that produce the picture in a
    7·1 answer
  • Match the given equation with the verbal description of the surface: A. Circular Cylinder B. Plane C. Cone D. Half plane E. Sphe
    8·1 answer
  • If an object is thrown in an upward direction from the top of a building 160 ft. High at an initial speed of 21.82 mi/h what is
    7·1 answer
  • Which are the upthrust forces?
    9·2 answers
  • What do both types of bone marrow do that is found in our long bones.<br> (answer asappp)
    9·1 answer
  • an airplane flying due north at 90. km/h is being blown due west at 50. km/h. what is the resultant velocity of the plane?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!