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
MariettaO [177]
3 years ago
6

A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.70 ✕ 107 km. Radio waves travel at

the speed of light (3.00 ✕ 108 m/s). How many seconds does it take for the signal to reach the Earth?

Physics
1 answer:
Ahat [919]3 years ago
3 0

Answer: 2.9 × 10 E 3 sec

Explanation: The explanation is attached

You might be interested in
What must occur for work to be done on an object?
stiv31 [10]
The answer is D since work done must have displacement..if theres force but no displacement there will be no work done based on W=Fs
4 0
2 years ago
Read 2 more answers
During the flight of the ball, what is the direction of its Acceleration due to gravity
vekshin1
Regardless of what direction an object is moving, the acceleration
due to gravity is always directed toward the center of the Earth. 
That's the direction commonly known as "down".
4 0
2 years ago
A hockey stick strikes a hockey puck of mass 0.17 kg. If the force exterted on the hockey puck is 35.0 N and there is a force of
GREYUIT [131]

Answer:

a=190\ m/s^2

Explanation:

Mass of a hockey puck, m = 0.17 kg

Force exerted by the hockey puck, F' = 35 N

The force of friction, f = 2.7 N

We need to find the acceleration of the hockey puck.

Net force, F=F'-f

F=35-2.7

F=32.3 N

Now, using second law of motion,

F = ma

a is the acceleration of the hockey puck

a=\dfrac{F}{m}\\\\a=\dfrac{32.3}{0.17}\\\\a=190\ m/s^2

So, the acceleration of the hockey puck is 190\ m/s^2.

5 0
3 years ago
If you walk 6mph how far would you get in 10 seconds?
abruzzese [7]

Answer:

0.017

Explanation:

6÷3600×10=

6÷360=0.00166666666

=0.017(rounded)

3 0
2 years ago
Read 2 more answers
A solid uniform cylinder of mass 4.1 kg and radius 0.057 m rolls without slipping at a speed of 0.79 m/s. What is the cylinder’s
Amiraneli [1.4K]

Answer:

The cylinder’s total kinetic energy is 1.918 J.

Explanation:

Given that,

Mass = 4.1 kg

Radius = 0.057 m

Speed = 0.79 m/s

We need to calculate the linear kinetic energy

Using formula of linear kinetic energy

K.E_{l}=\dfrac{1}{2}mv^2

K.E_{l}=\dfrac{1}{2}\times4.1\times(0.79)^2

K.E_{l}=1.279\ J

We need to calculate the rotational kinetic energy

K.E_{r}=\dfrac{1}{2}\times I\omega^2

K.E_{r}=\dfrac{1}{2}\times\dfrac{1}{2}\times mr^2\times(\dfrac{v}{r})^2

K.E_{r}=\dfrac{1}{4}\times m\times v^2

K.E_{r}=\dfrac{1}{4}\times4.1\times(0.79)^2

K.E_{r}=0.639\ J

The total kinetic energy is given by

K.E=K.E_{l}+K.E_{r}

K.E=1.279+0.639

K.E=1.918\ J

Hence, The cylinder’s total kinetic energy is 1.918 J.

8 0
3 years ago
Other questions:
  • Which materials are the best thermal insulators?
    15·2 answers
  • A meter stick is pivoted at its 50 cm mark but does not balance because of non-uniformities in its material that cause its cente
    5·1 answer
  • A temperature inversion can adversely affect air quality and is characterized by ________
    5·1 answer
  • Please help on this question​
    13·1 answer
  • How much heat is needed to melt 13.74 kg of silver that is initially at 20°C?
    15·1 answer
  • A wooden beam with a mass of 10.8 kg is supported by vertical supports
    15·1 answer
  • In which city did the wright brothers take off on their very first flight
    6·1 answer
  • If you know the power rating of an appliance and the voltage of the line it is attracted to , you can calculate the current the
    15·2 answers
  • When rockets split do they come back to earth?
    15·1 answer
  • Please help me on this physics, i got confused​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!