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
Alex73 [517]
3 years ago
11

1. Physics is the study of_

Physics
1 answer:
Alexeev081 [22]3 years ago
5 0

Answer:

Explanation:

1. Physics is the study of mass , energy and their mutual relationship.

2. List the fundamental Sl (metric) units for:

time - s,

displacement - m,

velocity - ms,

acceleration- m/s2,

force - N,

weight - Kg,

mass- kg

friction - N.

3. On a "position vs. time" graph, how is velocity found?

A straight line will obtained.

4. On a "position vs. time" graph, how is acceleration represented?

Under the slope of straight line.

5. 32,000 m = 32km

25 m/s =  55.9 miles/hr

50 km/hr =  13.9m/s

6. (2.0 x 105 km) (3.1 x 1012 m) = 658 812 000 m2

7. Describe the motion of the object whose velocity is illustrated in the graph below:

velocity

You might be interested in
A tube closed at one end is used to determine the speed of sound in air. The resonances occur every 32 cm when a 530-Hz tuning f
soldi70 [24.7K]

Answer:169.6m/s

Explanation:

Wavelength=32cm=0.32m

Frequency=580Hz

Velocity=frequency x wavelength

Velocity=580x0.32

Velocity=169.6m/s

6 0
3 years ago
Refer to the image. Calculate the magnitude of change in velocity of the cue ball.
valkas [14]

Answer:

If you add the 2 velocity vectors you get the velocity of the third vector which is the (change in) velocity of the cue ball after striking the cushion

V * 2 * cos 45 = 4 * cos 45 = 2.83 m/s

6 0
2 years ago
A constant force of 5KN pulls a crate along a distance of 15 m in 75s.What is the power​
xxMikexx [17]

Explanation:

We know,

1KN = 1000N

Then, Force(F) = 5*1000N

=5000N

Here,

Power (P)=Work(W)/Time(T)

=Force * distance/ Time (W = F*s)

= 5000*15/75

=1000

So, The power of body or object is 1000Watt.

I hope this will be helpful for you.

8 0
4 years ago
An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vecto
kupik [55]

Answer: rp/re= me/mp= 544 * 10^-6.

Explanation: To calculate this problem we have to consider the circular movement by the electron and proton inside a magnetic field.

Then the dynamic equation for the circular movement is given by:

Fcentripetal= m*ω^2.r

q*v*B=m*ω^2.r

we write this for each particle then we have the following:

q*v*B=me* ω^2*re

q*v*B=mp* ω^2*rp

rp/re=me/mp=9.1*10^-31/1.67*10^-27=544*10^-6

4 0
4 years ago
True or false. when objects collide , some momentum is lost
ycow [4]

Answer:

It is neither false nor true. When they collide some of one of the objects goes to the other object.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • When a cold can of soda is insulated, the heat flow into the can on a hot day ____. a. increases c. stays the same b. decreases
    9·2 answers
  • PLEASE ANSWER ASAP!! A photographer in a helicopter ascending vertically at a constant rate of 9.5 m/s accidentally drops a came
    9·2 answers
  • In a chemical reaction, the total mass of the reactants is 10.0 grams. The total mass of the products must be:
    5·1 answer
  • For question #17, use the following picture:
    9·1 answer
  • The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. The volcano was o
    7·1 answer
  • In ionic bonds what happens to electrons?
    12·2 answers
  • Which type of rock contains minerals arranged in crystals and forms when molten rock cools and turns solid?
    6·1 answer
  • A rigid body rotates about a fixed axis with a constant angular acceleration. Which one of the following statements is true conc
    13·1 answer
  • gabriel and arely have performed an experiment and are not sure their results are valid. what should they do to check their resu
    11·2 answers
  • How much Power does a truck use to complete 4,100 J of Work in 30<br> seconds? *
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!