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
kramer
3 years ago
8

Brainliest for correct answer :)

Physics
2 answers:
kiruha [24]3 years ago
8 0

Answer:

B!

Explanation:

melisa1 [442]3 years ago
5 0

Answer:

B- They both have travelled equal distances in 7 minutes

Hope this helps!

You might be interested in
The wavelength of a water wave is 6 cm when the frequency is 10 hertz .
dedylja [7]

  1. The distance between successive crests (or successive troughs) is defined as the wavelength. The time elapsed between the crossings of two successive crests through a given point is the period of the wave.
  2. The Velocity of propagation (Vp) of a cable is the speed at which an electrical signal can propagate through the cable in comparison to the speed of light. For example, in a vacuum, the velocity of propagation would be 100% or 1 (depending on how it is represented).
  3. The wave period is the time it takes to complete one cycle. The standard unit of a wave period is in seconds, and it is inversely proportional to the frequency of a wave, which is the number of cycles of waves that occur in one second.

4 0
3 years ago
Which has more momentum, a speeding baseball or an ocean liner at rest in a harbor?
uranmaximum [27]
Momentum is (mass) times (speed), so nothing that is at rest has any momentum. If the battleship is at rest, then a mosquito in flight, a leaf falling from a tree, and your speedy baseball each have more momentum than the ship has.
4 0
3 years ago
A sealed tank containing seawater to a height of 12.8 m also contains air above the water at a gauge pressure of 2.90 atm . Wate
exis [7]

Answer:

The velocity of water at the bottom, v_{b} = 28.63 m/s

Given:

Height of water in the tank, h = 12.8 m

Gauge pressure of water, P_{gauge} = 2.90 atm

Solution:

Now,

Atmospheric pressue, P_{atm} = 1 atm = 1.01\tiems 10^{5} Pa

At the top, the absolute pressure, P_{t} = P_{gauge} + P_{atm} = 2.90 + 1 = 3.90 atm = 3.94\times 10^{5} Pa

Now, the pressure at the bottom will be equal to the atmopheric pressure, P_{b} = 1 atm = 1.01\times 10^{5} Pa

The velocity at the top, v_{top} = 0 m/s, l;et the bottom velocity, be v_{b}.

Now, by Bernoulli's eqn:

P_{t} + \frac{1}{2}\rho v_{t}^{2} + \rho g h_{t} = P_{b} + \frac{1}{2}\rho v_{b}^{2} + \rho g h_{b}

where

h_{t} -  h_{b} = 12.8 m

Density of sea water, \rho = 1030 kg/m^{3}

\sqrt{\frac{2(P_{t} - P_{b} + \rho g(h_{t} - h_{b}))}{\rho}} =  v_{b}

\sqrt{\frac{2(3.94\times 10^{5} - 1.01\times 10^{5} + 1030\times 9.8\times 12.8}{1030}} =  v_{b}

v_{b} = 28.63 m/s

5 0
4 years ago
Please answer this question.
Len [333]

Answer:

Explanation:

need more work

6 0
3 years ago
Which frequencies can humans can hear but not mice
Blizzard [7]
Of approximately 1 to 4 kHz6 and approximately 16 kHz for mice.
6 0
3 years ago
Other questions:
  • You take a 3 hour nap on a train traveling 40 miles per hour
    15·2 answers
  • Which phase of cell division results in the formation of 4 new haploid cells
    9·1 answer
  • A pool player hit a ball with a mass of 0.25kg. The ball travels at a velocity of 15 m/s for 0.75 s until it hits the side of th
    13·1 answer
  • A rocket is fired at 100 m/s at an angle of 37, how many seconds did it take to get to the top?
    12·1 answer
  • I will Mark as the brainliest answer​
    6·2 answers
  • What point does a basketball have the greatest potential energy
    12·2 answers
  • A thin, metallic spherical shell of radius 0.187 m has a total charge of 6.53×10−6 C placed on it. A point charge of 5.15×10−6 C
    6·1 answer
  • The uncertainty in position of a proton confined to the nucleus of an atom is roughly the diameter of the nucleus. If this diame
    6·1 answer
  • Two positive point charges repel each other with force 0.36 N when their separation is 1.5 m. What force do they exert on each o
    10·1 answer
  • WILL GIVE BRAINLIEST!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!