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
PolarNik [594]
3 years ago
10

When are scalars used?

Physics
1 answer:
Shkiper50 [21]3 years ago
7 0
When you have to wait some
You might be interested in
6. (a) Suppose the earth is revolving round the sun in a circular orbit of radius one b astronomical unit (1.5% 10 km). Find the
kkurt [141]

Answer:

tough

ques

Explanation:

5 0
2 years ago
**URGENT PLEASE HELP**
nalin [4]

Answer:

This depends on what angle they are approaching each other before they collided.The two simple cases are if they are running in the same direction or opposite direction from each other. For either case, use the conservation of momentum equation to solve: M_total*V_result = M1*V1 + M2*V2

Explanation:

Here are two possible solutions.

Head-on collision: M1=78, V1=8.5, M2=72, V2=-7.5 (that's negative because he's running the other way), M_total = 78+72 = 150, so V_result = (78*8.5 - 72*7.5)/150 = 0.82 m/s. Sanity check, they weigh about the same and so most of their velocity should cancel out.

Running the same way: change the sign of V2 to positive so V_result = (78*8.5 + 72*7.5)/150 = 8.02 m/s. Sanity check, they weigh about the same and the resultant speed is between the two starting velocities.

<em>hope it helps:)</em>

7 0
4 years ago
Read 2 more answers
"how long would it take for a ball dropped from the top of a 400-foot building to hit the ground? round your answer to two decim
Lelechka [254]
Hello

Let's convert first the height from foot to meters:
S=400~ft=121.92~m
This is the space covered by the ball in its accelerated motion, where the acceleration is the gravitational acceleration:
a=g=9.81~m/s^2
The law of motion is given by
S= \frac{1}{2}at^2
Re-arranging, we can get the total time of the motion:
t= \sqrt{ \frac{2S}{a} }=4.99~s&#10;
which is the time the ball takes to hit the ground.
7 0
3 years ago
Read 2 more answers
Janet recently read an article about the role that the brain plays in processing emotions. Janet comes over to your house for di
Ira Lisetskai [31]
Amygdala helps in processing emotions
I hope I could answer part of your question
3 0
3 years ago
To withstand ‘g-forces’ of up to 10 g’s, caused by suddenly pulling out of a steep dive, fighter jet pilots train on a ‘human ce
Marina86 [1]

Answer:

34.292 m/s

Explanation:

When plane dives the gravitational acceleration becomes 10 times extra i-e

acceleration a = g= 10g's=10 ×9.8= 98 m/sec2

radius of dive circle = 12 m

v= speed= ?

Using

a= \frac{v^{2} }{r}

==> v^{2} = a × r = 98 × 12 = 1176 (\frac{m}{s}) ^{2}

==> v= \sqrt{1176(\frac{m}{s} )^{2} }

==> v= 34.292 m/s

4 0
3 years ago
Other questions:
  • How many steps in glycolysis have atp as a substrate or product?
    9·1 answer
  • The magnetic field on the axis of a circular current loop (Eq. 5.41) is far from uniform (it falls off sharply with increasing z
    11·1 answer
  • The shortest wavelengths occur in the:red end of the spectrumblue end of the spectrummiddle of the spectrum The light-gathering
    5·1 answer
  • How do you study physics?
    6·2 answers
  • When you walk at an average speed (constant speed, no acceleration) of 20.7 m/s in 75.8 sec you will cover a distance of______?
    14·1 answer
  • you throw a snowball horizontally. it hits a target 2 meters away. you notice that it hit .9 m below were u aimed. with what hor
    8·1 answer
  • A wheel with a 0.10-m radius is rotating at 35 rev/s. it then slows uniformly to 15 rev/s over a 3.0-s interval. what is the ang
    14·1 answer
  • In a step-down transformer, which describes the primary winding compared with the secondary winding? A higher voltage and fewer
    6·2 answers
  • Hi I need help with this question (see image ). Please show workings. If necessary.​
    7·1 answer
  • YALL PLEASE PLEASE HELP IF YOU KNOE THE ANSWER TO BOTH OF THEM IT WILL BE VERY NICE PLEASE HELP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!