3 years ago

How can you find the nuetrons in youre element ??

1 answer:

5 0

Answer: you subtract the number of protons from the mass number, on the periodic table your atomic number is your protons and your atomic mass is the mass number

Explanation:

You might be interested in

Giving brainly if correct show work

Orlov [11]

Answer:

Umm Lucy will weigh to many pounds

Explanation:

5 0

2 years ago

The slope of a position-time graph can be used to find the moving obiects

Naya [18.7K]

Answer:

Is this a true and false statement?

Explanation:

6 0

3 years ago

Ultrasound involves high-frequency sound waves. Sound waves can be used to image internal structures. This is the basis of

Naddik [55]

Answer:

tomography

Explanation:

3 0

3 years ago

Read 2 more answers

From a static hot air balloon, a 10kg projectile is launched at a speed of 10m / s upwards. If the balloon has a mass of 90kg. W

lesya692 [45]

Answer:

c. 1.11 m/s down

Explanation:

Momentum is conserved.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

Assuming the balloon and projectile are originally at rest:

(90 kg) (0 m/s) + (10 kg) (0 m/s) = (90 kg) v + (10 kg) (10 m/s)

0 kg m/s = (90 kg) v + 100 kg m/s

v = -1.11 m/s

8 0

3 years ago

Two balls are kicked with the same initial speeds. Ball A was kicked at the angle 20° above horizontal and ball B was kicked at

inysia [295]

Answer:Impossible to answer without knowing their actual initial speeds

Explanation:

Given

Ball A launched at angle of $20^{\circ}$

Ball B is launched at angle of $75^{\circ}$

At the highest point Ball vertical velocity will be and there will be only horizontal velocity i.e. $v_acos20$ and $v_bcos75$

where $v_a and v_b$ is the velocity of A & B

thus to find which one is greater we need to know their initial velocity.

It is impossible to know which one have higher velocity at highest point.

7 0

3 years ago