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
Nataly_w [17]
3 years ago
11

Which ocean borders the west coast of this United States

Physics
1 answer:
Gennadij [26K]3 years ago
3 0
The Pacific.
Hope it helps!
You might be interested in
Beginning about 55 seconds into the video, you'll see an animation of a photographer looking through her camera at a man, a set
RideAnS [48]

Answer and Explanation

The concept of parallax and relative motion is responsible for this.

That is, the photographer's motion prompts her to see parallax for the man and the trees, because their positions appear to keep shifting even though they are not really moving.

5 0
3 years ago
Explain the law of inertia in your own words.
natita [175]

A

An object at rest will remain at rest unless acted on by a force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by a force.

Explanation:

6 0
3 years ago
Read 2 more answers
The speed of a certain proton is 350 km/s. If the uncertainty in its momentum is 0.100%, what is the necessary uncertainty in it
Evgesh-ka [11]

Answer:

\Delta x = 1.807 \times 10^{-10}m

Explanation:

mass of proton, m = 1.67 x 10^-27 kg

speed of proton, v = 350 km/s = 350,000 m/s

Momentum of proton, p = mass x speed

p =  1.67 x 10^-27 x 350000 = 5.845 x 10^-22 kg m /s

uncertainty in momentum, Δp = 0.1 % of p

Δp = \frac{0.1\times 5.845 \times 10^{-22}}{100}=5.845 \times 10^{-25}

According to the principle

\Delta x\times \Delta p \geq  \frac{h}{2\pi }

where, Δx be the uncertainty in position

\Delta x\times 5.845 \times 10^{-25}=  \frac{6.634 \times 10^{-34}}{2\times 3.14}

\Delta x = 1.807 \times 10^{-10}m

5 0
3 years ago
A U-shaped tube open to the air at both ends contains some mercury. A quantity of water is carefully poured into the left arm of
pishuonlain [190]

Answer:

Explanation:

a ) gauge pressure will be due to water column of length 15 cm .

pressure = h d g , h is height of column , d is density of column and g is gravitational acceleration .

= .15 x 10³ x 9.8

= 1470 Pa .

b )

Let due of weight of water column , mercury level in left column goes down by distance h . The level of mercury in right column will rise by the same distance ie by distance h .

So mercury column of 2h height is balancing the water column of height 15 cm

2h x 13.6 x 10³ x g = .15 x 10³ x g

h = .15 / (2 x 13.6)

= .55 x 10⁻² m

= . 55 cm

Difference of height of water column and mercury column

= 15 - 2 x .55 cm

= 13.9 cm .

3 0
3 years ago
A 40.0-kg boy, riding a 2.50-kg skateboard at a velocity of +5.30 m/s across a level sidewalk, jumps forward to leap over a wall
OleMash [197]

Answer:

v_2 = -4.584\ m/s

Explanation:

given,

mass of boy(m₁) = 40 kg

mass of the skateboard(m₂) = 2.50 kg

velocity of skateboard(V) = 5.30 m/s

speed of the boy(v₁) = 6 m/s at 9.50° above the horizontal

friction force is not acting in x-direction hence no we can apply conservation of momentum in x- direction

as the boy jumps over sidewalk skateboard cannot go through the sidewalk,  there must be some force in the y direction  so, momentum is not conserved.

P_{before}x = P_{after}x

(m_1+m_2)V= m_1v_1+ m_2v_2

(40+2.5)\times 5.30 = 40 \times v cos (\theta )+ 2.5v_2

225.25 = 40 \times 6\times cos (9.50^0 )+ 2.5v_2

225.25 = 236.71+ 2.5v_2

v_2 = \dfrac{225.25-236.71}{2.5}

v_2 = -4.584\ m/s

negative sign represent velocity of the skateboard is in the opposite direction of boy.

8 0
3 years ago
Other questions:
  • Does light have mass?
    12·2 answers
  • How long does it take a car to cross a 20m bridge if it starts from rest and accelerates at 5 m/s^2?
    15·1 answer
  • Why do alpha particles and nuclei repel each other rather than attract eachother
    5·1 answer
  • . Two people are pushing a car of mass 2000 kg.
    15·1 answer
  • Guys help...A spring that obeys Hooke's law, with a spring constant k1, is cut into N identical springs, each with a spring cons
    5·1 answer
  • Find the angular momentum of a hollow spinning sphere when its angular speed is 20rad/s. The rotational inertia of the sphere is
    9·1 answer
  • A merry-go-round accelerating uniformly from rest achieves itsoperating speed of 2.5rpm in five revolution.
    12·1 answer
  • Which of the following is an example of positive potential energy with reference to the floor? PLS HELP
    13·1 answer
  • Work done= ________ transferred
    9·1 answer
  • Two balls are dropped from rest and allowed to fall. If one ball is allowed to fall for 1 s and the other for 3 s compare the di
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!