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
dybincka [34]
2 years ago
6

Explaining How Momentum Can Cause

Physics
1 answer:
Ghella [55]2 years ago
6 0

Answer:

The astronaut can throw the hammer in a direction away from the space station. While he is holding the hammer, the total momentum of the astronaut and hammer is 0 kg • m/s. According to the law of conservation of momentum, the total momentum after he throws the hammer must still be 0 kg • m/s. In order for momentum to be conserved, the astronaut will have to move in the opposite direction of the hammer, which will be toward the space station.

Explanation:

You might be interested in
Electrons in a particle beam each have a kinetic energy of 4.0 × 10 −17 J. What is the magnitude of the electric field that will
Dmitry_Shevchenko [17]

Answer:

-833.3 N/C

Explanation:

Kinetic energy, K, in terms of electric field, E, is given as:

K = qEr

q = charge = e = 1.6 × 10⁻¹⁹C

E = Electric field

r = distance = 0.3m

The electric field can be gotten by making E subject of formula:

E = K/(qr)

The electeic field needed to stop the electrons must be equal in magnitude to the electric field carried by these electrons:

E = (4.0 × 10⁻¹⁷)/(-1.6 × 10⁻¹⁹ * 0.3)

E = -833.3 N/C

This is the electric field needed to stop the electrons.

The negative sign means that the electric field must be in a direction opposite to the motion of the electrons.

3 0
3 years ago
Read 2 more answers
A person drives a car around a circular road with a constant speed of 20 m/s. The
ale4655 [162]

Answer:

16 m/s^2

Explanation:

acceleration tangential = (v^2)/r

a=400/25

a=16 m/s^2

Side note: next time, be more specific when asking about acceleration in circular motion. There's more than one type! Example:

angular acceleration=acceleration tangential/r

angular acc.=16/25

angular acc.=0.64 rad/s^2

5 0
3 years ago
Read 2 more answers
The diagram shows a positive charge moving in a magnetic field.
slavikrds [6]

By the right hand rule the magnetic force on the charge acts up

6 0
2 years ago
Read 2 more answers
The interference of two sound waves of slightly different frequencies produces
Leviafan [203]
Beats.

When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is called "beating" or producing beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves.
4 0
2 years ago
Read 2 more answers
Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?
Flura [38]

Answer:

TO answer this question i need wave speed

Explanation:

4 0
2 years ago
Other questions:
  • A 100.0 mL sample of 1.020 M HCl is mixed with a 50.0 mL sample of 2.040 M NaOH in a Styrofoam cup. If both solutions were initi
    7·1 answer
  • Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction
    15·2 answers
  • A 30 g particle is undergoing simple harmonic motion with an amplitude of 2.0 ✕ 10-3 m and a maximum acceleration of magnitude 8
    11·2 answers
  • Pls look at the photo above, thanks
    8·1 answer
  • If you place a balloon in the freezer, it will __________.
    8·2 answers
  • A sphere mass m1 and a block of mass m2 are connected by a light cord that passes over a pulley. The radius of the pulley is R,
    12·1 answer
  • Light incident on a polarizer is then passed through a second polarizer. If the polarizer and the analyzer are perpendicular to
    9·2 answers
  • Pls help All objects above _____ emit radiation. 0°C 0°F 0 K 100 K
    8·2 answers
  • 30 points plus brainliest for best answer no funny answers Assignment: Waves Concept Map Exploration Your concept map will compa
    6·1 answer
  • Which of the following is true of work?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!