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riadik2000 [5.3K]
4 years ago
9

Have any comets or asteroids collided with Earth?

Physics
2 answers:
Scrat [10]4 years ago
7 0
Yea an asteroid hit the dinosaurs
zvonat [6]4 years ago
4 0

Answer:

yes.........it happens many times in the history..

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A soccer player kicks a soccer ball at +10.0 m/s at an angle of 60°. What are the horizontal and vertical components of velocity
Nastasia [14]
This seems like a calculus problem. I'm assuming you would use cos and sin. so here's the vertical component +10.0m/s multiplied by sin60 = 8.66 rounded to the hundreths place. Now for horizontal, that would be +10.0m/s multiplied by cos60 = 5. hope this helped.
3 0
3 years ago
Read 2 more answers
When a pitcher throws a baseball, it reaches a top speed of 39 m/s. if the
Aliun [14]

From the calculation, the acceleration of the body is 26m/s^2.

<h3>What is motion under gravity?</h3>

When an object is thrown up or down, the motion of the body is influenced by the gravitational pull on the body.

Now;

Given that;

v = 39 m/s

t = 1.5 s

u = 0 m/s

a = ?

v = u + at

v = at

a = v/t

a = 39 m/s/1.5 s

a = 26m/s^2

Learn more about acceleration:brainly.com/question/12550364

#SPJ1

4 0
2 years ago
A rod 25 cm long moves in a plane perpendicular to a magnetic field of 600 G. The velocity of the rod is perpendicular to its le
Airida [17]

Answer:

v = 666.667 m/s

Explanation:

<u>Given</u>: length L = 25 cm = 0.25 m,  B = 600 G =  0.06 T ( 1G = 0.0001 T)

emf= 10 V

Solution:

emf = vBL

v= emf / BL

v = 10 V / (0.06 T× 0.25 m)

v = 666.667 m/s

3 0
3 years ago
A diathermy machine, used in physiotherapy, generates electromagnetic radiation that gives the effect of "deep heat" when absorb
olga nikolaevna [1]

Answer:

The wavelength of the given radiation is 0.327 m

Explanation:

The wavelength and the frequency of a wave are related by the formula, given below:

v = fλ

where.

v = speed of wave

f = frequency of wave = 915 MHz = 915000000 Hz

λ = wavelength of the wave = ?

For the electromagnetic radiations we know that:

v = c = speed of light = 3 x 10^8 m/s

Therefore,

c = fλ

λ = c/f

λ = (300000000 m/s)/(915000000 Hz)

<u>λ = 0.327 m</u>

5 0
3 years ago
Read 2 more answers
Calculate the acceleration using the formula acceleration = (final velocity - initial velocity)/time
kari74 [83]

Explanation:

Acceleration is defined as the rate of change of velocity with time. In most acceleration problems:

the given parameters will be;

   Initial velocity

   final velocity

   time.

Using the equation below:

  Acceleration  = \frac{Final velocity  -   initial velocity}{time}

 

one can solve for acceleration. The unit is usually in m/s²

Learn more:

velocity brainly.com/question/10962624

#learnwithBrainly

4 0
4 years ago
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