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
zvonat [6]
3 years ago
10

Metric conversions

Physics
1 answer:
AfilCa [17]3 years ago
5 0
<h3>1:-</h3>

  • 1m=10dm

\\ \sf\longmapsto 15m

\\ \sf\longmapsto 15(10)

\\ \sf\longmapsto 150dm

<h3>2:-</h3>

  • 1L=1000cm^3

\\ \sf\longmapsto 0.023cm^3

\\ \sf\longmapsto 0.023\times 0.001

\\ \sf\longmapsto 0.00023L

<h3>3:-</h3>
  • 1km=1000m

\\ \sf\longmapsto 0.00049km

\\ \sf\longmapsto 0.00049(1000)

\\ \sf\longmapsto 0.49m

4:-

  • 1kg=1000g

\\ \sf\longmapsto 0.25kg

\\ \sf\longmapsto 0.25(1000)

\\ \sf\longmapsto 250g

5:-

  • 1g=0.0001hg

\\ \sf\longmapsto 15g

\\ \sf\longmapsto 15(0.0001)

\\ \sf\longmapsto 0.0015hg

You might be interested in
Which one will it be
liq [111]

Answer:

none

Explanation:

it's to high up to be affected by the gravity

3 0
2 years ago
Read 2 more answers
Car A with a mass of 725 kilograms is traveling east at an initial velocity of 15 meters/second. It collides head–on with car B,
ikadub [295]

Answer:

p_t_o_t_a_l=250kg\frac{m}{s}

Explanation:

<u>The total momentum of a system is defined by:</u>

(mv)_t_o_t=m_1v_1+m_2v_2+...

Where,

(mv)_t_o_t is the total momentum or it could be expressed also as p_t_o_t_a_l.

m_1 and m_2 represents the masses of the objects interacting in the system.

v_1 and v_2 are the velocities of the objects of the system.

<em>Remember: </em><em>The momentum is a fundamental physical magnitude of vector type.</em>

We have:

m_1=725 kg

v_1=15\frac{m}{s}\\m_2=625 kg

We are going to take the east side as positive, and the west side as negative. Then the velocity of the car B, has to be <u>negative</u>. It goes in a different direction from car A.

v_2=-17\frac{m}{s}

Then the total momentum of the system is:

p_t_o_t_a_l=m_1v_1+m_2v_2\\p_t_o_t_a_l=(725kg)(15\frac{m}{s})+(625kg)(-17\frac{m}{s})\\p_t_o_t_a_l=10875kg\frac{m}{s}-10625kg\frac{m}{s}\\p_t_o_t_a_l=250kg\frac{m}{s}

8 0
3 years ago
vA child is in danger of drowning in the Merimac river. The Merimac river has a current of 3.1 km/hr to the east. The child is 0
ikadub [295]

Answer:

d = 2.26 km

Explanation:

Let the child is moving with speed same as the speed of water flow

So here the position of child with respect to flow must be zero

And if the boat start at an angle with the vertical

so its relative speed with flow of water is given as

v_x = 24.8 sin\theta

v_y = 24.8 cos\theta

now the time to reach the child is given as

\frac{0.6}{24.8 cos\theta} = \frac{2.5}{24.8 sin\theta }

so now we have

\theta = 76.5 degree

So the time to catch the child is given as

t = \frac{0.6}{24.8 cos78.2}

t = 0.104 h

So distance moved by it in 0.104 h

distance moved by the boat in upstream direction given as

x = (24.8 sin 74.8 - 3.1)(0.104)

x = 2.18 km

In y direction the displacement of boat is

y = 0.6 km

net displacement of the ball is given as

d = \sqrt{x^2 + y^2}

d = \sqrt{2.18^2 + 0.6^2}

d = 2.26 km

4 0
3 years ago
A kettle is rated at 1 kW, 220 V. Calculate the working resistance of the kettle.
Anna [14]

Explanation:

Power of electric kettle, P = 1 kW

Voltage, V = 220 V

(a) Electric power is given by the formula as follows :

P=\dfrac{V^2}{R}

R is resistance

R=\dfrac{V^2}{P}\\\\R=\dfrac{(220)^2}{10^3}\\\\R=48.4\ \Omega

(b) When connected to a 220 V supply, it takes 3 minutes for the water in the kettle to reach boiling point.

Energy supplied is given by :

E=P\times t

P is power, P=\dfrac{V^2}{R}

E=\dfrac{V^2}{R}t\\\\E=\dfrac{(220)^2}{48.4}\times 180\\\\E=180000\ J\\\\E=180\ kJ

5 0
3 years ago
Why is gravitational force and gravity not the same thing?
vekshin1

Answer:

gravitational force is a force while gravity is a fundamental quantity

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • In which state of matter do the particles spread apart and fill all the space available to them?
    6·2 answers
  • Write about a possible scenario where you may be tempted to not use lab safety explain what the correct and most safe choice wou
    5·1 answer
  • At approximately what wavelength of the continuous spectrum will the greatest (maximum) intensity occur when 60-kV electrons str
    10·1 answer
  • Light is not a wave because it does not need a medium. true or false.
    14·2 answers
  • A beam of red light and a beam of blue light have exactly the same energy. Which beam contains the greater number of photons?
    7·1 answer
  • A car climbs 10.0 kilometers up a hill that inclines 8.0 degrees. What is the car's vertical displacement?
    14·1 answer
  • You observe a light ray move from one piece of glass to another (a different type of glass) and the light ray bends towards the
    12·1 answer
  • If you have a mass of 15kg , what is your weight on earth?
    11·1 answer
  • A basketball rolls down a hill until it comes to a stop in a ditch
    9·2 answers
  • The photo shows a toy spring. What kind of energy does the toy have because of its shape?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!