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
Helga [31]
3 years ago
12

6 An object can never have

Physics
1 answer:
MAVERICK [17]3 years ago
6 0

Answer:

B

Explanation:

Speed is the magnitude of the velocity vector, so it can never be negative.

You might be interested in
g An astronaut must journey to a distant planet, which is 189 light-years from Earth. What speed will be necessary if the astron
Butoxors [25]

Answer:

The value is v  =  2.999 *10^{8} \  m/s

Explanation:

From the question we are told that

   The time taken to travel to the planet from earth is t = 189 \ light-years

    The  time to be spent on the ship is  t_{s} =  12 \  years

Generally speed can be obtained using the mathematical relation represented below

       t_s  =  2 * t *  \sqrt{1 -  \frac{v^2}{c^2 } }

The 2 in the equation show that the trip is a round trip i.e going and coming back

=>    12 =  2 * 189 *  \sqrt{1 -  \frac{v^2}{(3.0*10^{8})^2 } }

=>     v  =  2.999 *10^{8} \  m/s

5 0
3 years ago
What committee decides which bills move to the House floor for debate and sets the terms for the debate?
spayn [35]
 i think the answer is B-House Rules Comittee
6 0
3 years ago
Dissolving common salt in water is physical or chemical change?
Ipatiy [6.2K]

Answer: Physical

Explanation: There are no changes being done to the salt. Think of it this way, if you dissolve the salt in water then boil the water completely, you will have the same salt you started with.

8 0
3 years ago
Quel est le type de rayonnement produit par la radioactivité
Dmitriy789 [7]

Il existe troi types de rayons produits lors de la désintégration des éléments radioactifs:

-- "particules alpha" . . . noyaux d'hélium, composés chacun de 2 protons et 2 neutrons

-- "rayons bêta" ou "particules bêta" . . . flux d'électrons

-- "rayons gamma" . . . rayonnement électromagnétique avec les longueurs d'onde les plus courtes connues et l'énergie la plus élevée

8 0
3 years ago
A boat having stones floats in water. If stones are unloaded in water, what will happen to the level of water?​
Pani-rosa [81]

Explanation:

If the stones are unloaded from the boat, the weight of the boat will decrease. Therefore, the volume of the water displaced by the boat will also decrease. Due to this, the volume of the boat immersed in the water decreases. Hence, the level of the water around the boat will decrease.

5 0
3 years ago
Other questions:
  • The owner of a window treatment company wants to design Shades that will cover the windows of the house. the shades should also
    14·2 answers
  • A new interstate highway is being built with a design speed of 120 km/h. For one of the horizontal curves, the radius (measured
    10·1 answer
  • Most of the compunds that make up organisms contain __
    9·1 answer
  • A photon of wavelength 0.99235 nm strikes a free electron that is initially at rest. the photon is scattered straight backward.
    8·1 answer
  • Which of the following is a property of all periodic waves?
    6·1 answer
  • An airplane is flying in a horizontal circle at a speed of 480 km/h (). If its wings are tilted at angle =40° to the horizontal
    6·1 answer
  • What is buoyancy? How is it related to the force of gravity?
    13·1 answer
  • a mango fruit drop down from top of its tree which is 5m high. How long does it take to reach the ground​
    14·2 answers
  • How many times a minute does your heart usually beat?
    6·2 answers
  • Students have a small steel ball and a large steel ball, and they have a short ramp and a tall ramp.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!