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
9966 [12]
3 years ago
13

A car travels west for 240 km in 4 h. what is the car's velocity?

Physics
2 answers:
nalin [4]3 years ago
4 0
The velocity is 60 because you divide your distance by your time (240÷4=60)
Mila [183]3 years ago
4 0
You convert 240 km to meters: that would be 240 divided by 1,000 to reach your answer of .24 meters. Now, you would want distance over time, so .24 divided by 4 would be .06. Your velocity is .06
You might be interested in
Name the characteristics of electro magnetic waves that i) increases ii) remains constant in the electromagneticspectrum as one
Paul [167]

As we move from Radiowaves to UV waves in electromagnetic spectrum we know that the wavelength is maximum for radio waves while its frequency is minimum

PART (i)

So as we move from radiowaves to UV region

the Frequency will increase

Part (ii)

As we move from Radiowaves to UV region all the parts must have same speed in same medium

All parts will move with speed of light

so Speed will remain the same

4 0
3 years ago
A 74 KG student starting from rest slides down 11.8 m high water slide how fast is it going at the bottom of the slide?
-Dominant- [34]

the answer is going to be 873.2

8 0
3 years ago
Arrow_forward
garri49 [273]

Explanation:

(a) Hooke's law:

F = kx

7.50 N = k (0.0300 m)

k = 250 N/m

(b) Angular frequency:

ω = √(k/m)

ω = √((250 N/m) / (0.500 kg))

ω = 22.4 rad/s

Frequency:

f = ω / (2π)

f = 3.56 cycles/s

Period:

T = 1/f

T = 0.281 s

(c) EE = ½ kx²

EE = ½ (250 N/m) (0.0500 m)²

EE = 0.313 J

(d) A = 0.0500 m

(e) vmax = Aω

vmax = (0.0500 m) (22.4 rad/s)

vmax = 1.12 m/s

amax = Aω²

amax = (0.0500 m) (22.4 rad/s)²

amax = 25.0 m/s²

(f) x = A cos(ωt)

x = (0.0500 m) cos(22.4 rad/s × 0.500 s)

x = 0.00919 m

(g) v = dx/dt = -Aω sin(ωt)

v = -(0.0500 m) (22.4 rad/s) sin(22.4 rad/s × 0.500 s)

v = -1.10 m/s

a = dv/dt = -Aω² cos(ωt)

a = -(0.0500 m) (22.4 rad/s)² cos(22.4 rad/s × 0.500 s)

a = -4.59 m/s²

3 0
3 years ago
What is the magnetic force on a proton that is moving at 5.2 x 107 m/s to the
alisha [4.7K]

Answer:

1.1648×10⁻¹¹ N

Explanation:

Using

F = qvBsinФ..................... Equation 1

Where F = Force on the proton, q = charge, v = velocity, B = magnetic Field, Ф = angle between the magnetic Field and the velocity.

Note: The angle between v and B = 90°

Given: v = 5.2×10⁷ m/s, B = 1.4 T, q = 1.6×10⁻¹⁹ C, Ф = 90°

Substitute into equation 1

F = 1.6×10⁻¹⁹(5.2×10⁷)(1.4)sin90°

F = 11.648×10⁻¹²

F = 1.1648×10⁻¹¹ N.

6 0
3 years ago
Read 2 more answers
Write two examples of machine which changes the direction of force​
Ostrovityanka [42]

Answer:

Washign machine and swingset

Explanation:

4 0
2 years ago
Other questions:
  • 5. The equation shows the formation of nitrogen and hydrogen. What effect does increasing the pressure have on this equilibrium?
    9·1 answer
  • PLEASE HELP When astronauts eliminate waste in space, which is likely to be used?  [A] showers and faucets, spraying hot water..
    12·1 answer
  • What is the difference between a molecule ard<br> a compound ?
    14·1 answer
  • Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with a force of 79.9 N , Jill pul
    10·1 answer
  • If a roller coaster cart needs more Kinetic Energy to reach the top of the track, what are two ways to increase the amount of Ki
    15·1 answer
  • I'm not quite sure how the formula works. I thought it was
    8·1 answer
  • Savaş atı kitabında joey hangi hastalığa yakalandı​
    11·1 answer
  • The energy of a machine that is transformed into heat:
    13·1 answer
  • Which statement about an atom is correct?(1 point)
    5·2 answers
  • The light elastic rod supports a 4 kg sphere. when an 18n vertical force is applied to the sphere, the rod deflects 14 mm. a) fi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!