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
Natali [406]
3 years ago
8

If a space probe sends back info on an object traveling through space at close to the speed of light astronomers will be working

with speeds of:
A.) billions of meters per second
B.) trillions of meters per second
C.) millions of meters per second
D.) hundreds of meters per second.
Physics
1 answer:
OleMash [197]3 years ago
8 0
The speed of light in a vacuum is 300,000,000 m/s
That is three hundred million meters per second.
Therefore, the answer is
C) millions of meters per second
You might be interested in
Which two types of waves can transmit energy through a vacuum?
nalin [4]
The answer would be the sound waves.
4 0
3 years ago
Read 2 more answers
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down,
maw [93]
V^2=u^2 +2aS
U is found first by considering that first 8 secs and using v=u+at. {different v and u though}

V=-u+gt.
Magnitude of u = magnitude of v if there is no resistance ( because the conservation of energy says the k. E. must be the same when it passes you as when it left your hand).... up is negative here, down is positive.
V+v=gt
2v= g x 8
V=4xg.= the initial velocity for the next calculation
V^2=(4g)^2+(2xgx21)

So v can be calculated.

4 0
3 years ago
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. a
USPshnik [31]
Refer to the diagram shown below.

Let I = the moment of inertia of the wheel.
α = 0.81 rad/s², the angular acceleration
r = 0.33 m, the radius of the weel
F = 260 N, the applied tangential force

The applied torque is
T = F*r
   = (260 N)*(0.33 m)
   = 85.8 N-m

By definition,
T = I*α

Therefore,
I = T/α
  = (85.8 N-m)/(0.81 rad/s²)
  = 105.93 kg-m²

Answer: 105.93 kg-m²

6 0
3 years ago
A student drops two metallic objects into a 120-g steel container holding 150 g of water at 25°C. One object is a 206-g cube of
spayn [35]

Answer:

Mass of the aluminium chunk = 278.51 g

Explanation:

For an isolated system as given the energy lost and gains in the system will be zero therefore sum of all transfer of energy will be zero,as the temperature will also remain same

A specific heat formula is given as                  

Energy Change = Mass of liquid x Specific Heat Capacity x Change in temperature

                                       Q =  m×c×ΔT

                        Heat gain by aluminium + heat lost by copper  = 0    (1)

For Aluminium:

      Q = m\times0.897\frac{J}{g.k}\times(25-5)

      Q = m x 17.94 joule

For Copper:

Q= 206g\times0.385\frac{J}{g.k} \times(88-25)

       Q= 4996.53 Joule

from eq 1

     m x 17.94 = 4996.53

     mass of aluminium = \frac{4996.53}{17.94} g

    Mass of the aluminium chunk = 278.51 g

                         

3 0
3 years ago
Why doesn’t she love me
o-na [289]
I bet she does just give her tule work on yourself
7 0
3 years ago
Read 2 more answers
Other questions:
  • However, sometimes levers are designed to increase the input force needed to move an object. Which of the following is most like
    5·1 answer
  • If an object is moving to the right and there is a net force acting on it to the left, what will happen to the object?
    9·1 answer
  • n the metric system the acceleration due to gravity near Earth's surface is about 9.81 meters per second per second. What is the
    6·1 answer
  • Help DUE TONIGHT!
    12·1 answer
  • An object is thrown straight up with an initial velocity of 10 m/s, and there is an air resistance force causing an acceleration
    14·1 answer
  • 12. One object has half the mass of another object. The first object also has half the ---.
    7·1 answer
  • The Gulf Stream off the east coast of the United States can flow at a rapid 3.3 m/s to the north. A ship in this current has a c
    9·1 answer
  • Three thermometers are in the same water bath. After thermal equilibrium is established, it is found that the Celsius thermomete
    9·1 answer
  • How much force is required to keep 780 n box moving at constant velocity across the floor of the friction force between the box
    10·1 answer
  • What happens to the resistance of two resistors when connected in series​ circuit
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!