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blondinia [14]
3 years ago
13

Why did scientists gather at Los Alamos in 1945?

Physics
1 answer:
QveST [7]3 years ago
5 0

Answer:

Oppenheimer suggested that the bomb laboratory operate secretly in an isolated area but allow free exchange of ideas among the scientists on the staff.

Explanation:

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A Ferris wheel is a vertical, circular amusement ride with radius 6.0 m. Riders sit on seats that swivel to remain horizontal. T
Oksana_A [137]

Answer:

Incomplete question

The complete question is

A Ferris wheel is a vertical, circular amusement ride with radius 6.0 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at a constant rate, going around once in 9.6 s. Consider a rider whose mass is 96 kg.

At the bottom of the ride, what is the rate of change of the rider's momentum?

Explanation:

Radius of wheel is 6m

Rider mass=96kg

He completes one revolution in 9.6s

Let get angular velocity (w)

1 Revolution =2πrad

θ=2πrad

w= θ/t

w=2π/9.6

w=0.654rad/s

Linear speed is give as

v=wr

v=0.654×6

v=3.93m/s

Centripetal acceleration a

a=rw²

a=6×0.654²

a=2.57m/s²

Acceleration due to gravity g=9.81m/s²

According to Newton's second law of motion net force acting on the rider at the bottom of the ride is given by: the two force acting at the bottom is the normal and the weight of the rider

ΣF = ma

N-W=ma

N-mg=ma

N=ma+mg

N=m(a+g)

N=96(2.57+9.81)

N=1188.48 N

Therefore the rate of change of momentum at the bottom of the ride is 1188.48 N.

8 0
3 years ago
For many years Colonel John P. Stapp, USAF, held the world's land speed record. He participated in studying whether a jet pilot
Margarita [4]

Answer:

(a) -202 m/s²

(b) 198 m

Explanation:

Given data

  • Initial speed (v₀): 283 m/s

\frac{632mi}{h} .\frac{1609.34m}{1mi} .\frac{1h}{3600s} =283m/s

  • Final speed (vf): 0 (rest)
  • Time (t): 1.40 s

(a) The acceleration (a) is the change in the speed over the time elapsed.

a = (vf - v₀)/t = (0 - 283 m/s)/ 1.40s = -202 m/s²

(b) We can find the distance traveled (d) using the following kinematic expression.

y = v₀ × t + 1/2 × a × t²

y = 283 m/s × 1.40 s + 1/2 × (-202 m/s²) × (1.40 s)²

y = 198 m

3 0
3 years ago
A water dwelling slug like animal
rusak2 [61]
The answer you are looking for is a leech! 

Hope this helps!
8 0
3 years ago
Read 2 more answers
Alai is comparing the physical property of two materials. He is hitting each with a hammer to observe what happens. What physica
dalvyx [7]

Answer:

C:Hardness

Explanation:

if youre hitting something your going to see wich one breaks first

8 0
2 years ago
Read 2 more answers
Work may be measured using units of <br> A.watts<br> B.newton<br> C.joules<br> D.newtons per second
DochEvi [55]

If you are working with electricity most people will measure it in watts.

So, A. watts is your best answer.

Hope I helped! ^w^

3 0
3 years ago
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