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
deff fn [24]
3 years ago
9

Find the range of a projectile launched at an angle of 30° with an initial velocity of 20m/s.​

Physics
1 answer:
Tems11 [23]3 years ago
7 0

Answer:

<em>The range is 35.35 m</em>

Explanation:

<u>Projectile Motion</u>

It's the type of motion that experiences an object projected near the Earth's surface and moves along a curved path exclusively under the action of gravity.

Being vo the initial speed of the object, θ the initial launch angle, and g=9.8m/s^2 the acceleration of gravity, then the maximum horizontal distance traveled by the object (also called Range) is:

\displaystyle d={\frac  {v_o^{2}\sin(2\theta )}{g}}

The projectile was launched at an angle of θ=30° with an initial speed vo=20 m/s. Calculating the range:

\displaystyle d={\frac  {20^{2}\sin(2\cdot 30^\circ )}{9.8}}

\displaystyle d={\frac  {400\sin(60^\circ )}{9.8}}

d=35.35\ m

The range is 35.35 m

You might be interested in
Rogan claims that he can run 8 miles per hour. Use the speed formula to determine how many minutes it would take him to run one
MAXImum [283]

Answer:

he would have to run at a 7 and a half mile to get 8 miles in an hour

Explanation:

8 0
3 years ago
Read 2 more answers
Subduction occurs at which of the following tectonic plate boundaries?
exis [7]
When two tectonic plates collide and form a converging plate boundry, normally one of the plates will slide underneath the other and that is when Subduction occurs.
5 0
3 years ago
Necesito ayudaaaaaa por favor
natima [27]

MAnswer:

Explanation:

4 0
3 years ago
Read 2 more answers
When the mass of the bottle is 0.125 kg, the KE is______ kg m2/s2.
DiKsa [7]
Answers are:
(1) KE = 1 kg m^2/s^2
(2) KE = 2 kg m^2/s^2
(3) KE = 3 kg m^2/s^2
(4) KE = 4 kg m^2/s^2


Explanation:

(1) Given mass = 0.125 kg
speed = 4 m/s

Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
Hence:
KE = (1/2) * 0.125 * (16)
KE = 1 kg m^2/s^2

(2) Given mass = 0.250 kg
speed = 4 m/s

Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
Hence:
KE = (1/2) * 0.250 * (16)
KE = 2 kg m^2/s^2

(3) Given mass = 0.375 kg
speed = 4 m/s

Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
Hence:
KE = (1/2) * 0.375 * (16)
KE = 3 kg m^2/s^2

(4) Given mass = 0.500 kg
speed = 4 m/s

Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
Hence:
KE = (1/2) * 0.5 * (16)
KE = 4 kg m^2/s^2
3 0
3 years ago
A protein molecule in an electrophoresis gel has a negative charge. The exact charge depends on the pH of the solution, but 30 e
Reika [66]

Answer:

7.401 * 10^(-15) N

Explanation:

30 electrons will have a charge:

30 * -1.6022 * 10^(-19) C

= - 4.806 * 10^(-18) C

The relationship between electric field and electric force is:

E = F/q

This means that force, F, is

|F| = |E|*|q|

|F| = |1540| * |-4.806 * 10^(-18)|

|F| = |-7401.24 * 10^(-18)|

|F| = 7.401 * 10^(-15) N

7 0
3 years ago
Other questions:
  • A string is wrapped several times around the rim of a small hoop with a radius of 8.00 cm and mass 0.180 kg. The free end of the
    15·1 answer
  • Which of the following is the best name for CaF2?
    5·2 answers
  • Which carries information by changing original sounds into numbers?
    11·2 answers
  • Un cuerpo gira con movimiento circular uniforme un ángulo total de 1080° en 20
    13·1 answer
  • A train moves from rest to a speed of 25 m/s in 30.0 seconds . What is the acceleration
    12·1 answer
  • Near the surface of the Earth, objects in free fall (but not terminal velocity) experience
    6·2 answers
  • You are making a telephone out of two aluminum cans and some string. You can choose between two types of string: a 2-m length of
    12·1 answer
  • What’s Chemical energy
    13·2 answers
  • Plz help me plz its in the picture
    12·1 answer
  • Cara is building a model of the solar system, which includes the Sun. She plans to include a written description to provide deta
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!