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
konstantin123 [22]
3 years ago
15

A. In what frame of reference does special relativity apply? b. In what frames must general relativity be used? c. Describe what

happens to time and length at speeds close to the speed of light.
Physics
1 answer:
madam [21]3 years ago
8 0

Answer:special relativity apply to INERTIAL FRAME REFERENCE

Explanation:

inertial frame of reference is the one in which acceleration is zero this means object is moving with constant velocity

You might be interested in
this Punnett square shows the cross between two pants. One parent has round seeds (RR). And the other parent has wrinkled seeds
Bad White [126]

All Offsprings will be round because it comes out as dominant evrytime and it has 0 ressesives. Hope this helped ;)

4 0
3 years ago
A 26.0 kg beam is attached to a wall with a hinge while its far end is supported by a cable such that the beam is horizontal. If
Nuetrik [128]

Answer:

Force exerted by the hinge on the beam = 109.24N

Explanation:

Weight = mg = 26 x 9.81 = 255.06 N

Vertical component = T sin θ

Horizontal component = Tcos θ

Now, there are 3 vertical forces acting on the beam. These are;

- The downward force which is the weight of the beam.

- The vertical components of the tension in the cable.

-The force that hinge exerts on the beam are the upward forces.

Hence, for the beam to remain horizontal, the sum of the upward forces must be equal to the weight of the beam.

For us to determine the vertical component of the tension in the cable, we will do a torque problem. Let the pivot point be at the hinge. Let’s assume that the length of the beam is L. The vertical component of the tension in the cable will produce clockwise torque while the weight of the beam will produce counter clockwise torque.

Tbus;

Clockwise torque = TL sin 61

Since the center of mass of beam is at the middle of the beam, the distance from the hinge to the weight of the beam is L/2.

Counter clockwise torque = WL/2

Thus;

TL sin 61 = WL/2

L will cancel out.

T sin 61 = 255.06/2

T x 0.8746 = 127.53

T = 127.53/0.8746 = 145.82 N

Now, the equation to determine the vertical component of the force that the hinge exerts on the beam is given as;

T + F = W

Thus;

145.82 + F = 255.06

F = 255.06 - 145.82 = 109.24 N

8 0
3 years ago
The cockroach Periplaneta americana can detect a static electric field of magnitude 8.50 kN/C using their long antennae. If the
erica [24]

Answer:

0.235 nC

Explanation:

Given:

  • E = the magnitude of electric field = 8.50\ kN/C =8.50\times 10^{3}\ N/C
  • F = the magnitude of electric force on each antenna = 2.00\ \mu N =2.00\times 10^{-6}\ N
  • q = The magnitude of charge on each antenna

Since the electric field is the electric force applied on a charged body of unit charge.

\therefore E = \dfrac{F}{q}\\\Rightarrow q =\dfrac{F}{E}\\\Rightarrow q =\dfrac{2.00\times 10^{-6}\ N}{8.50\times 10^{3}\ N/C}\\\Rightarrow q =0.235\times 10^{-9}\ C\\\Rightarrow q =0.235\ nC

Hence, the value of q is 0.235 nC.

4 0
3 years ago
Im need some help with this please
hram777 [196]
The answer is D, human.


Happy Friday!!!
8 0
3 years ago
Maurice pulls on the end of a spring scale. He lets go of the end and observes the spring snap back into place. What force resto
andreev551 [17]
Elastic is the right answer.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the role of the air spaces in insulating materials? Select all that apply.
    9·2 answers
  • Two students, Student 1 and Student 2, did a hands-on mining exercise with cookies to compare the total cost of mining in two di
    13·1 answer
  • Unlike mechanical waves, electromagnetic waves do not require to travel through.
    9·2 answers
  • A piano tuner stretches a steel piano wire with a tension of 765 N . The steel wire has a length of 0.600 m and a mass of 4.50g
    15·1 answer
  • What is the amount of disorder in a system
    13·1 answer
  • The air going into the tyre was warmed up by the pumping. What effect will this have on the motion of Gad molecules in the air i
    10·1 answer
  • Atoms giving up valence electrons indicates that an ionic bond is present ture or false
    5·2 answers
  • Two risks of exposure to High levels of UV radiation
    10·2 answers
  • Suppose that we replace the aluminum with a mystery metal and repeat the experiment in the video. As in the video, the mass of t
    12·1 answer
  • Which pathway is the foundation for the majority of ecosystems and food chains on earth?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!