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MAXImum [283]
3 years ago
9

3. High speed strobe light photographs show the head of a 215 g golf club traveling at 55 m/s just before it strikes a 46

Physics
1 answer:
Murrr4er [49]3 years ago
7 0

Answer:

61 m/s

Explanation:

Momentum before collision = momentum after collision

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(215 g) (55 m/s) + (46 g) (0 m/s) = (215 g) (42 m/s) + (46 g) v

v ≈ 61 m/s

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If you want to play a tune on wine glasses, you’ll need to adjust the oscillation frequencies by adding water to the glasses. Th
jonny [76]

Answer:Reducing mass i.e. water

Explanation:

Frequency For given mass in glass is given by

f=\frac{1}{2\pi }\sqrt{\frac{k}{m}}

where k =stiffness of the glass

m=mass of water in glass

from the above expression we can see that if mass is inversely Proportional to frequency

thus reducing mass we can increase frequency  

6 0
4 years ago
Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push the shovel 0.25
Sergeu [11.5K]

Answer:

Option B. 6.25 J/S

Explanation:

Data obtained from the question include:

t (time) = 2secs

F (force) = 50N

d (distance) = 0.25m

P (power) =?

The power can be obtained by using the formula P = workdone/time.

P = workdone / time

P = (50 x 0.25)/ 2

P = 6.25J/s

3 0
3 years ago
*5. What is the mass number of a magnesium atom, Mg that has 12 neutrons?
elena-s [515]

Answer:

24

Explanation:

24.305 of atomic mass has 12 neutrons

5 0
3 years ago
What happens when parallel rays of light hit a smooth mirror surface
Gnesinka [82]

Answer:it rotate

Explanation:

it just spin

8 0
3 years ago
how much work did the movers do (horizontally) pushing a 41.0- kg crate 10.3 m across a rough floor without acceleration, if the
11111nata11111 [884]

W=2485.65 J ,work did the movers do friction force a 41.0- kg crate 10.3 m across a rough floor without acceleration

<h3>What is a basic friction force?</h3>

Two surfaces that come into contact and slide against one another produce a force known as frictional force. Several aspects that influence the frictional force include: The surface texture as well as the amount of force attracting them together have the most effects on these forces.

<h3>What outcomes does friction produce?</h3>

It generates heat, which is useful for warming our bodies or specific areas of any object. Power is also lost as a result. It makes noise during every operation. We are able to walk, run, dance, etc. due to friction.

To know  more about friction force visit:

brainly.com/question/1389727

#SPJ4

7 0
1 year ago
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