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
postnew [5]
3 years ago
8

Scientists who study races and their origins are called

Physics
2 answers:
trapecia [35]3 years ago
6 0
The answer is B. Bye because B those study speed.
Nikolay [14]3 years ago
4 0

the answer is C in USA test prep

You might be interested in
For an object to be in static equilibrium, the net force must be equal to zero and and The center of gravity must be above the s
iren [92.7K]

Answer:

The normal force must equal the weight.

8 0
3 years ago
If a receiver is overly selective:
VMariaS [17]

Answer:

C) only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results.

Explanation:

Selectivity is the ability of a receiver to respond only to a specific signal on a wanted frequency and reject other signals nearby in frequency.

If a receiver is overly selective, only part of the bandwidth of the AM signal is amplified, causing some of the sideband information to be lost and distortion results. Whereas, if a receiver is underselective, the receiver can pick different signals on different frequencies at the same time.

7 0
3 years ago
The gravitational force between the Sun (mass = 1.99 × 1030 kg) and Mercury (mass = 3.30 × 1023 kg) is 8.99 × 1021 N. How far is
Vlad [161]

Mercury is 35.98 million miles from the Sun.

4 0
3 years ago
Read 2 more answers
A 125 N box is being raised from the ground floor and accelerating due to a 175 N force. Identify all the forces and find the Ne
Finger [1]

Answer:

<em>Fn = 50 N</em>

Explanation:

<u>Net Force</u>

The net force is the sum of all the forces acting on an object.

When all the forces act in a single line, the direction of the forces is given by their signs. Positive signs are assumed to be up and left on both axes.

The box being raised by a force has a weight of W=-125 N. The negative sign indicates the weight points down. The accelerating force goes up and its value is F=175 N. The positive sign indicates this force pushes the box up.

The forces acting on the box are:

The weight W=-125 N

The accelerating force F=175 N

The net force is

Fn = W + F = -125N + 175 N

Fn = 50 N

7 0
2 years ago
What is the difference between a neutralization reaction and a double-displacement reaction?
Mariana [72]
<span> Neutralization reactions always produce water and a salt.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Objects: A balloon full of helium in the air. Air- 1.27 kg/ml or Helium Balloon- 0.33 kg/ml
    8·1 answer
  • How does a message travel across the gap at a synapse?
    15·1 answer
  • How do you suppose the frequency of an electromagnetic wave compares with the frequency of the electrons it sets into oscillatio
    15·1 answer
  • A transformer has a primary coil with 375 turns of wire and a secondary coil with 1,875 turns. An AC voltage source connected ac
    9·1 answer
  • An apple weighs at 1N. the net force on the apple when it is in free fall is?
    11·1 answer
  • A frequently quoted rule of thumb in aircraft design is that wings should produce about 1000 n of lift per square meter of wing.
    8·1 answer
  • The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm
    8·1 answer
  • Describe an instance when the motion energy of an object changed, causing some other energy change as well.
    9·1 answer
  • The moon Ariel orbits Uranus at a distance of 1.91 x 108 m once every 2.52 days. Use that data to calculate the mass of Uranus.
    15·1 answer
  • A solid weighs weighs 20g in air,a8.2g in a liquid and 18g in water. Calculate
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!