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
kumpel [21]
3 years ago
11

HELP NEEDED ASAP I'M GIVING BRAINLIEST

Physics
2 answers:
guajiro [1.7K]3 years ago
7 0

Answer:

1.

d . A stream of particles

2. D. Radiowave

3. Microwaves

son4ous [18]3 years ago
4 0

Answer:

1.

d . A stream of particles

2. D. Radiowave

3. Microwaves

Explanation:

You might be interested in
A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy? GPE=m
saw5 [17]

Answer:

Ep = 3924 [J]

Explanation:

To calculate this value we must use the definition of potential energy which tells us that it is the product of mass by the acceleration of gravity by height.

E_{p}=m*g*h\\

where:

Ep = potential energy [J] (units of Joules)

m = mass = 40 [kg]

g = gravity acceleration = 9.81 [m/s²]

h = elevation = 10 [m]

E_{p} =40*9.81*10\\E_{p} = 3924 [J]

7 0
2 years ago
What will a spring scale read for the weight of a 75.0-kg woman in an elevator that moves upward with constant speed of 5.8 m/s
Sholpan [36]
<span>On the scale the only external forces are the man's weight acting downwards and the normal force which the scale exerts back to support his weight. So F = Ma = mg + Fs The normal force Fs (which is actually the reading on the scale) = Ma + Mg But a = 0 So Fs = Mg which is just his weight. Fs = 75 * 9.8 = 735N</span>
7 0
3 years ago
If one stand of DNA reads as AATTCCGGATCG, what would the opposite strand bases be?
3241004551 [841]
TTAAGGCCTAGC

hope this helps
4 0
3 years ago
PLEASE HELP THIS IS DUE LIKE HELP ME PLEASE
marysya [2.9K]

Answer:

At the end points of motion (either side) the velocity must be zero because the velocity is changing from - to + (it can't turn around around without passing thru zero,

The velocity will then increase to the midpoint of the motion.

m g h = 1/2 m v^2    where h is the vertical distance thru which the pendulum travels

5 0
2 years ago
A string is tied between two posts separated by 2.4 m. When the string is driven by an oscillator at frequency 567 Hz, 5 points
Alex787 [66]

Explanation:

The given data is as follows.

       Length (l) = 2.4 m

       Frequency (f) = 567 Hz

Formula to calculate the speed of a transverse wave is as follows.

                  f = \frac{5}{2l} \times v

Putting the gicven values into the above formula as follows.

                  f = \frac{5}{2l} \times v

                 567 Hz = \frac{5}{2 \times 2.4 m} \times v

                      v = 544.32 m/s

Thus, we can conclude that the speed (in m/s) of a transverse wave on this string is 544.32 m/s.

5 0
3 years ago
Other questions:
  • An object with charge q=−6.00×10−9C is placed in a region of uniform electric field and is released from rest at point A. After
    5·1 answer
  • An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 6.25 m/s2.
    10·2 answers
  • When an object moves in a circle, what is its displacement equal to? How do you know?
    11·1 answer
  • A commonly used unit of mass in the English system is the pound-mass, abbreviated lbm, where 1 lbm = 0.454 kg. What is the densi
    9·1 answer
  • A 75.0 kg students sits 1.15 m away from a 68.4 kg student. What is the force of gravitational attraction between them?
    15·1 answer
  • 2. Mrs. Stern is standing still on rollerblades on a frictionless floor in the middle of the A-gym while
    7·1 answer
  • Hey I need help can someone help me out, please
    12·1 answer
  • Calculate the mechanical advantage of a pulley system if only 10 lb is required to lift a 500 lb block.
    9·1 answer
  • A sound wave has a wavelength of 15 meters with a frequency of 2.5 Hz. What would the velocity be for this situation in
    9·1 answer
  • A baseball is tossed straight up in the air. The table shows the height and velocity of the ball at different times as it moves
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!