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
irina [24]
2 years ago
7

I WILL GIVE BRAINLIST just please help with these problems 3

Physics
1 answer:
statuscvo [17]2 years ago
3 0

Answer:

16. 68.18 Km/h

17. 3 miles.

Explanation:

16. Determination of the speed

Distance travelled = 150 Km

Time = 2.2 hours

Speed =?

Speed is simply defined as the distance travelled with time. Mathematically, it is expressed as:

Speed = Distance / time

With the above formula, we can obtain the speed as follow:

Distance travelled = 150 Km

Time = 2.2 hours

Speed =?

Speed = Distance /time

Speed = 150 / 2.2

Speed = 68.18 Km/h

17. Determination of the distance.

Speed = 3 mph

Time = 1 hour

Distance =?

Speed = Distance /time

3 = distance / 1

Distance = 3 miles

You might be interested in
Distinguish between speed and velocity.
Yuliya22 [10]
Sometimes they are the same in physics. it depends how the question is worded but speed comes before velocity. If you take the derivative of speed you will end up with its velocity. The same goes when you take the integral of velocity.
8 0
3 years ago
Read 2 more answers
The mass number of iodine is 126, and it’s in the 53rd place in the periodic table. It has
Yuri [45]
It has 52 Protons and 73 Neutrons
7 0
3 years ago
Earth orbits the sun once every
Karo-lina-s [1.5K]

Answer:1 trip around the earth is an angular displacement of 2*pi

3.6525*10^2 days

I

Explanation:24 h/1 day * 3.600*10^3 s/1h = 3.156*10^7 s

Angular speed = angular displacement / time

Angular speed = 2*pi rads / 3.156*10^7 s = 1.9910*10^-7 rad/s

3 0
3 years ago
the density of aluminum is 2700 kg/m3. if transverse waves travel at in an aluminum wire of diameter what is the tension on the
Sunny_sXe [5.5K]

The tension on the wire is 52.02 N.

From the question, we have

Density of aluminum = 2700 kg/m3

Area,

A = πd²/4

A = π x (4.6 x 10⁻³)²/4

A = 1.66 x 10⁻⁵ m²

μ = Mass per unit length of the wire

μ = ρA

μ = 2700 kg/m³ x 1.66 x 10⁻⁵ m²

μ = 0.045 kg/m

Tension on the wire = √T/μ

34 = √T/0.045

34² = T/0.045

T = 52.02 N

The tension on the wire is 52.02 N.

Complete question:

The density of aluminum is 2700 kg/m3. If transverse waves propagate at 34 m/s in a 4.6-mm diameter aluminum wire, what is the tension on the wire.

To learn more about tension visit:  brainly.com/question/14336853

#SPJ4

5 0
1 year ago
Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
Marina CMI [18]

Answer:

Peer Review

Explanation: I took the test

6 0
3 years ago
Other questions:
  • A 25.0-meter length of platinum wire with a cross-sectional area of 3.50 × 10^−6 meter^2 has a resistance
    8·1 answer
  • a 300 gram toy car and a 500 gram toy car are sitting on a shelf that is 2 meters higher than the floor. by what percentage is t
    15·1 answer
  • 680 hertz 0.5 meters whats the speed of the sound of the wave
    7·1 answer
  • If there were no friction between the girl and the slide on the hill, what would most likely happen to her motion
    5·1 answer
  • As your bike coasts downhill, your speed goes from 2 m/s to 4 m/s in 0.5 seconds. What is your acceleration?
    8·2 answers
  • Help! 200 g of water is heated and its temperature goes from 280 K to 300 K. What is the mass?
    5·1 answer
  • Plz help me with these :)
    12·2 answers
  • A storm front moves in and Rachel and Pam notice the column of mercury in the barometer rises only to 736 mm. Assume the density
    11·1 answer
  • Determine the number of milliliters in a volume of 2.81 fluid ounces
    12·1 answer
  • A wave has a wavelength of 3 m and a frequency of 340 Hz. How far will the wave go in 20 s?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!