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
8090 [49]
3 years ago
13

Round the following off to required number of significant figures.

Physics
2 answers:
Ray Of Light [21]3 years ago
6 0
140 but I’m not sure. Have a great day
Stells [14]3 years ago
4 0

Answer:

140

hope this helps

have a good day :)

Explanation:

You might be interested in
How can weather be forecast​
Ugo [173]

Answer:

using satellite

Explanation:

mark brainliest

8 0
3 years ago
What is the relationship in which the ratio of the manipulated variable and the responding variable is constant? A. inverse prop
Dafna1 [17]
That's a direct proportion.
6 0
3 years ago
A motorist driving at 25 meters/second decelerates to
Ilia_Sergeevich [38]
Work done = 0.5*m*[(v2)^2 - (v1)^2]
where m is mass,
v2 and v1 are the velocities.

Given that m = 1.50 x 10^3 kg, v2 = -15 m/s (decelerates), v1 = 25 kg,

Work done = 0.5 * 1.50 x 10^3 * ((-15)^2 - 25^2) = 3 x 10^5 joules

Just ignore the negative value for the final result because work is a scalar quantity.
8 0
3 years ago
Read 2 more answers
Someone help me please, I don't know how to do it :( ​
elena-14-01-66 [18.8K]

Answer:

fn /2 .3 'in

Explanation:

3 0
3 years ago
1. An object (m = 500 g) with an initial speed of 0.2 m/s collides with another object (m = 1.5 kg) which was at rest before the
Anettt [7]

Answer:

Explanation:

1 )

We shall apply conservation of momentum law to solve the problem.

mv = ( M +m) V , m and M are masses of small and large object , v is the velocity of small object before collision and V is the velocity of both the objects together after collision .

.5 x .2 = (1.5 + .5)V

V = .05 m /s

2 ) We shall use formula for velocity of object after elastic collision as follows

v₁ = \frac{(m_1-m_2)}{(m_1+m_2)} u_1+\frac{2m_2u_2}{(m_1+m_2)}

m₁ and m₂ are masses of first and second object u₁ and u₂ are their initial velocity and v₁ and v₂ are their final velocity.

Putting the values

= \frac{(200-1000)}{(1000+200)} \times 1 +\frac{2 \times1000\times0}{(1000+200)}

= - .66 m /s

Since the sign is negative so it will be in opposite direction .

4 0
3 years ago
Other questions:
  • A car moved with a constant speed of 104km/hr how long will it take to travel a distance of 422.9km?
    7·1 answer
  • The magnetic fields in all planets are generated by the dynamo effect, caused by rapidly rotating and conducting material flowin
    15·1 answer
  • PLEASE HELP!!!!
    7·1 answer
  • What is centripetal force
    14·1 answer
  • if a swimmer is traveling at a constant speed of 0.85 m/s how long would it take to swim the length of 50 meter olymic sized poo
    13·1 answer
  • A perfect bouncy ball would continue bouncing the same height forever. But in reality, the ball stops bouncing because energy is
    7·1 answer
  • Stereotypes are widely held beliefs that people have certain traits because
    14·1 answer
  • The speed of sound in air is about 330m/s. How long will it take to travel 1km answer in seconds to one decimal point
    6·1 answer
  • Why do living beings and machine need energy?​
    12·2 answers
  • What gravitational force does the moon produce on the earth is their centers are 3. 88x10^8 m apart and the moon has a mass of 7
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!