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
bazaltina [42]
3 years ago
5

Who is the silentest that revised the atomic modle

Physics
1 answer:
Bas_tet [7]3 years ago
7 0
Bohr is the scientist you are looking for my friend...;)
You might be interested in
A ball with a horizontal speed of 1.0m/s rolls off a bench 2.0 m high. (a) how long will the ball take to reach the floor? (b) h
bixtya [17]
The motion of the ball is a composition of two motions:
- on the x (horizontal) axis, it is a uniform motion with initial velocity v_x = 1.0 m/s
- on the y (vertical) axis, it is a uniformly accelerated motion with acceleration g= 9.81 m/s^2 

(a) to solve this part, we just analyze the motion on the vertical axis. The law of motion here is
y(t) = h - \frac{1}{2} gt^2
By requiring y(t)=0, we find the time t at which the ball reaches the floor:
h- \frac{1}{2}gt^2=0
t= \sqrt{ \frac{2h}{g} }= \sqrt{ \frac{2\cdot 2.0 m}{9.81 m/s^2} }=0.64 s

(b) for this part, we can analyze only the motion on the horizontal axis. To find how far the ball will land, we must calculate the distance covered on the x-axis, x(t), when the ball reaches the ground (so, after a time t=0.64 s):
x(t) = v_x t = (1.0 m/s)(0.64 s)=0.64 m
4 0
3 years ago
A football player kicks a ball at a 30o angle from the ground with an initial velocity of 15 m/s. What is the final velocity of
navik [9.2K]

Given that,

Angle = 30°

Initial velocity = 15 m/s

We need to calculate the time of flight

Using formula of time of flight

T=\dfrac{2u\sin\theta}{g}

Where, u = initial velocity

g = acceleration due to gravity

Put the value into the formula

T=\dfrac{2\times15\sin30}{9.8}

T=1.5\ sec

We need to calculate the final velocity of the ball

Using equation of motion

v=u+gt

v=15+9.8\times1.5

v=29.7\ m/s

Hence, The final velocity of the ball is 29.7 m/s.

7 0
3 years ago
What’s the net force of an object being throwing into the air
timurjin [86]

Answer: forces acting on an object being thrown into the air is gravity and possibly air resistance

Explanation:

4 0
3 years ago
Bill Nye help.. I didn’t get link to vid, hoping y’all have seen it. 20 POINTS!
Lyrx [107]

Answer:

Potential, Kinetic and Chemical energy.

Explanation:

btw, congratulations for turning into an expert.

6 0
3 years ago
Imagine that someone is sitting down to enjoy a cup of coffee or hot chocolate. Use your experiences to describe how heat flows
Reika [66]

The heat flows into my body and I start with a warming feeling going down my throat as it starts there I get this warm feeling and I break out in a coldsweat from consuming a warm drink a cold drink will help cool me down :

Explanation:

If drink warm will make u warm drinking cool will make u cool down faster

8 0
3 years ago
Read 2 more answers
Other questions:
  • We have a rod made of a certain metal. The rod’s length is L = 1.2 m and has a circular cross section with radius r= 3.8mm. If w
    6·1 answer
  • A pendulum swings back and forth 5 times in 10 seconds what is the period of the pendulum?
    12·1 answer
  • WHICH IS THE HARDEST SUBSTANCE IN EARTH?
    7·2 answers
  • The radius of a right circular cone is increasing at a rate of 1.5 in/s while its height is decreasing at a rate of 2.4 in/s. At
    6·1 answer
  • If it took 10sec to climb the ladder what was your power in watts nd kilowatt?
    7·1 answer
  • A 0.300 kg potato is tied to a string with length 2.30 m , and the other end of the string is tied to a rigid support. The potat
    14·1 answer
  • Which statement is the best interpretation of the ray diagrem shown below
    14·2 answers
  • A 1000 kg boulder sits at the top of a 50-meter high cliff. Determine the amount of potential energy possessed by the boulder if
    15·2 answers
  • Can anyone help me on this thnxs ​
    9·1 answer
  • A shell is launched with an initial velocity at an angle of 40.0° above horizontal
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!