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
BARSIC [14]
3 years ago
7

The period of time required for the moon to complete a cycle of phases is called the ________ month.

Physics
1 answer:
eduard3 years ago
3 0
Synodic month, also known as a lunar month.
You might be interested in
A concave mirror has a radius of curvature of 1.6m. Find the focal length
Yuki888 [10]
Given,

Radius of curvature of concave mirror = 1.6m

We know that ,

Focal length = radius/2

Hence ,

Focal length of concave mirror = radius of concave mirror /2

=> F = 1.6/2

=> F = 0.8m

Hence the focal length of concave mirror is 0.8 m
5 0
2 years ago
Read 2 more answers
An ultraviolet wave traveling through a vacuum has wavelength of 4.0 x 10^-7 m. The waves frequency, written in scientific notat
Naily [24]

Answer:

λ = c / f     or    f = c / λ

f = 3.0E8 / 4.0E-7 = .75E15 / sec = 7.5E14 / sec = 7.5 X 10^14 /sec

5 0
1 year ago
A 3.00-kg ball swings rapidly in a complete vertical circle of radius 2.00 m by a light string that is fixed at one end. The bal
Brut [27]

Answer:

  • The gravity does a work of - 117.6 Joules.
  • The tension does not do work as the force is perpendicular to the direction of motion at any point in the trajectory.

Explanation:

The work done by the gravity simply is the difference in gravitational potential energy multiplied by -1:

W_g = - \Delta E_p = - (mgh_f  - m g h_i)

where m is the mass of the ball, g is the acceleration due to gravity, h_f is the final height and h_i is the initial height.

So, if the radius is 2.00 m, then the difference of height will be 4 meters:

W_g = - mg (h_f - h_i)

W_g = - 3.00 \ kg \ 9.8 \frac{m}{s^2} \ 4 \m

W_g = - 117.6 Joules

As the tension is perpendicular to the velocity of the ball, the force is always perpendicular to the direction of motion. So, the differential of work will be:

dW = \vec{F}  d\vec{r} = 0

6 0
2 years ago
You have two identical beakers A and B. Each beaker is filled with water to the same height. Beaker B has a rock floating at the
gregori [183]

Answer:

a) if we assume that the water does not spill, Beaker B weighs more than beaker S, or which in this case Beaker A weighs more

b) If it is spilled in water the weight of the two beakers is the same

Explanation:

The beaker weight is

 beaker A

          W_total = W_ empty + W_water

Beaker B

            W_total = W_ empty + W_water + W_roca

a) if we assume that the water does not spill, Beaker B weighs more than beaker S, or which in this case Beaker A weighs more

b) If it is spilled in water, the weight of the two beakers is the same because the amount of liquid spilled and equal to the weight of the stone, therefore the two beakers weigh the same

4 0
3 years ago
"Force" can be defined as a push or a<br> O pull<br> O grab
Nady [450]

Answer:

pull

is your answer please give me some thanks

4 0
2 years ago
Read 2 more answers
Other questions:
  • A quarterback throws a football at 40.0 km/hr to a receiver 50.0 yd away. How much time does it take the football to reach the r
    12·1 answer
  • Describe how switching the desk lamp on and off shows that light waves transfer energy
    6·2 answers
  • Magnetism at the centre of a bar magnet is
    15·1 answer
  • For an isolated system, the law of conservation of momentum is valid: A. for inelastic collisions. B. for elastic collisions. C.
    5·1 answer
  • A positive charge is moved from point a to point b along an equipotential surface. How much work is performed or required in mov
    15·1 answer
  • A cube and a square pyramid were joined to form the composite solid. A cube with side lengths of 12 inches. A square pyramid wit
    7·2 answers
  • Differentiate convection and conduction class 7
    12·1 answer
  • A 2 cm tall object is placed 30cm in front of a concave mirror with focal length of 25 cm. What is the height of the image?
    7·1 answer
  • What happens in the gray zone between solid and liquid?-,-​
    15·1 answer
  • The table below shows the measurements you took in an experiment. Trial Length ( miles) 1.9 4.2 N 3 5.9 4 What is the longest me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!