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
ololo11 [35]
3 years ago
7

A stone is thrown with an initial speed of 12 m/s at an angle of 30o above the horizontal from the top edge of a cliff. If it ta

kes the stone 5.6 s to reach the bottom, how far does the stone travel horizontally
Physics
1 answer:
kherson [118]3 years ago
8 0

Answer:

d=58m

Explanation:

From the question we are told that:

Initial Speed U=12m/s

Time T=5.6s

Angle \theta=30

Generally the  Newton's equation for motion is mathematically given by

d=d'+ut+\frac{at^2}{2}

d=12cos30*5.6

d=58m

You might be interested in
A nonconducting sphere has radius R = 1.29 cm and uniformly distributed charge q = +3.83 fC. Take the electric potential at the
zalisa [80]

Answer:

a) -2.516 × 10⁻⁴ V

b) -1.33 × 10⁻³ V

Explanation:

The electric field inside the sphere can be expressed as:

E= \frac{kqr}{R^3}

The potential at a distance can be represented as:

V(r) - V(0) = -\int\limits^r_0 {\frac{kqr}{R^3} } \, dr^2

V(r) - V(0) = [\frac{qr^2}{8 \pi E_0R^3 }]₀

V(r) =   -[\frac{qr^2}{8 \pi E_0R^3 }]₀

Given that:

q = +3.83 fc = 3.83 × 10⁻¹⁵ C

r = 0.56 cm

 = 0.56 × 10⁻² m

R = 1.29 cm

  =  1.29 × 10⁻² m

E₀ = 8.85 × 10⁻¹² F/m

Substituting our values; we have:

V(r) = -\frac{(3.83*10^{-15}C)(0.560*10^{-2}m)^2}{8 \pi (8.85*10^{-12}F/m)(1.29*10^{-2}m)^3}

V(r) = -2.15  × 10⁻⁴ V

The difference between the radial distance  and center can be expressed as:

V(r) - V(0) = -\int\limits^R_0 {\frac{kqr}{R^3} } \, dr^2

V(r) - V(0) =  [\frac{qr^2}{8 \pi E_0R^3 }]^R

V(r) = -\frac{qR^2}{8 \pi E_0R^3 }

V(r) = -\frac{q}{8 \pi E_0R }

V(r) = -\frac{(3.83*10^{-15}C)}{8 \pi (8.85*10^{-12}F/m)(1.29*10^{-2}m)}

V(r) = -0.00133

V(r) = - 1.33 × 10⁻³ V

8 0
2 years ago
How much momentum does a 77 kg football player have if he is running with a speed of 4 m/s
worty [1.4K]

Answer:

308 N-s

Explanation:

Momentum is given by

P= mv

P= 77 x 4

P= 308

4 0
2 years ago
Can a average velocity be zero.Why? ​
marishachu [46]

<u>Answer:</u>

Yes

<u>Explanation:</u>

Average velocity is the ratio of total displacement and time taken for that displacement:

average \space\ velocity = \frac{displacement}{time}

This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

4 0
2 years ago
3) show thal escape veloerty ve where symbols have their usual meaning?​
murzikaleks [220]

Answer:

v = \sqrt{\frac{2GM}{r} }

The formula for escape velocity where:

G - Gravitational constant (9.81 etc.)

M - the mass of the object the escape should be made from

r - distance to the centre of that mass

8 0
2 years ago
What is the seventh planet from the sun?
stiv31 [10]

The seventh planet from the sun is Uranus.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What does newtons 2nd law say about the relationship between Net Force and Acceleration?
    14·2 answers
  • Romeo lanza suavemente guijarros a la ventana de julieta y quiere que los guijarros golpeen la ventana solo con con un component
    15·1 answer
  • Classyfying— what is the name of the force you exert on a sponge when you squeeze it?
    11·2 answers
  • Carol can be defined as a social drinker because she can easily limit drinking and she chiefly drinks alcohol when she is out wi
    8·2 answers
  • A child goes down the slide,starting from rest. If the length of the slide is 2m and it takes the child 3 seconds to go down the
    10·1 answer
  • A scientist counts the number of bacteria colonies growing in each of six lab dishes.
    14·2 answers
  • What is the average speed, over the first 4.0 s of its motion, of a pebble released from rest off a bridge?
    9·1 answer
  • 1. What is the arrangement of the outer planets? 2. What effect does their placement have the planets?
    11·1 answer
  • Problem #2: An apple is thrown upward with an initial velocity of +24.0 m/s. a. Sketch the apple's trip and label what you know.
    14·1 answer
  • A wave traveling at 200 m/sec has a wavelength of 2.5 meters. What is the frequency of this wave
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!