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
liq [111]
3 years ago
8

Which of the following statements about radiation is true?

Physics
1 answer:
omeli [17]3 years ago
7 0
I'm not sure but I think it is A.
You might be interested in
Which of the following is a TRUE statement?
pshichka [43]

Answer:

e. All of these statements are false.

Explanation:

As we know that heat transfer take place from high temperature to low temperature.

It is possible to convert all work into heat but it is not possible to convert all heat in to work some heat will be reject to the surrounding.

The first law of thermodynamics is the energy conservation law.

Second law of thermodynamics  states that it is impossible to construct a device which convert all energy into work without rejecting the heat to the surrounding.

By using heat pump ,heat can transfer from cooler body to the hotter body.

Therefore all the answer is False.

5 0
3 years ago
ASAP! AWARDING BRAINLIEST see attached photo.
stellarik [79]

Answer:d

Explanation:

6 0
3 years ago
Read 2 more answers
If the object represented by the FBD below has a mass of 2.5 kg, what is the acceleration of the object?
Debora [2.8K]

Answer:

4 m/s² down

Explanation:

We'll begin by calculating the net force acting on the object.

The net force acting on the object from the left and right side is zero because the same force is applied on both sides.

Next, we shall determine the net force acting on the object from the up and down side. This can be obtained as follow:

Force up (Fᵤ) = 15 N

Force down (Fₔ) = 25 N

Net force (Fₙ) =?

Fₙ = Fₔ – Fᵤ

Fₙ = 25 – 15

Fₙ = 10 N down

Finally, we shall determine the acceleration of the object. This can be obtained as follow:

Mass (ml= 2.5 Kg

Net force (Fₙ) = 10 N down

Acceleration (a) =?

Fₙ = ma

10 = 2.5 × a

Divide both side by 2.5

a = 10 / 2.5

a = 4 m/s² down

Therefore, the acceleration of the object is 4 m/s² down

6 0
3 years ago
1. How does RNA differ from DNA?
9966 [12]
The answer is c) RNA contains uracil and ribose.
7 0
2 years ago
Read 2 more answers
Which of the following is one way that an electric motor's rotation speed can be controlled?
malfutka [58]
Depending on which type of motor you're talking about, but the first 3 are true.  A stronger magnetic field in a DC motor will slow it down but increase its torque.
The amount of current in the motor will control the magnetic fields and therefore affect the speed (and torque).  In an induction motor, the rotational speed is given by n= \frac{120f}{p}  where f is the line frequency and p is the number of poles.  Thus fewer poles makes it go faster.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to the equilibrium price and quantity for jelly when the price of peanut butter increases? (Assume that peanut butt
    9·1 answer
  • Leftover planetesimals that formed in the region of the solar system now occupied by the jovian planets are called
    7·1 answer
  • A substance with a pH of 9 has
    14·1 answer
  • Near the surface of Earth an electric field points radially downward and has a magnitude of approximately 100 N/C. What charge (
    8·1 answer
  • A hungry 11.5 kg predator fish is coasting from west to east at 75.0 cm/s when it suddenly swallows a 1.25 kg fish swimming from
    11·1 answer
  • A 7.3 cm diameter loop of wire is initially oriented so that its plane is perpendicular to a magnetic field of 0.61 T pointing u
    6·1 answer
  • When plugging in metric facts, always remember that 1 big unit = # small units. Fill in these facts: 1.________ s= ________μs 2.
    12·1 answer
  • What part of the diagram represents the proton​
    8·2 answers
  • PLEASE HELP ME WITH THIS ONE QUESTION
    14·1 answer
  • Two people hear a tornado siren, but one listener is 81.9 times farther away from the source of the sound than the other. What i
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!