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
Sophie [7]
3 years ago
5

19. Find the recoil velocity of a 65 kg ice hockey goalie who

Physics
1 answer:
Alexxx [7]3 years ago
4 0

Answer:

c. 0.12 m/s

Explanation:

by using momentum formula v_2=\frac{m_1\times v_1}{m_1+m_2}

we get

v_2=\frac{0.15\times 50}{0.15+65}=0.12

You might be interested in
Which force is opposite gravity?
aev [14]

The answer you are looking for is A

5 0
3 years ago
Read 2 more answers
Assume that the amplifiers on the stage operate at a combined power of 5,000 Watts, and that 80% of this is converted to sound.
rusak2 [61]

Answer:

0.04

Explanation:

Fraction of power converted to sound = 80% = 0.08

Fraction incident upon each eardrum onstage = 0.08/2 = 0.04

6 0
3 years ago
Which type of energy will definitely not be used in the lighting of a match?
In-s [12.5K]
I say that the answere would be B
4 0
3 years ago
A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. suppose that a storm is in progress wit
Agata [3.3K]

Before we answer this question, let us first understand what alternate hypothesis is.

The alternative hypothesis is the hypothesis which is used in the hypothesis testing and this is opposite to the null hypothesis. This is the test hypothesis which is usually taken to be that the observations are the result of a real effect in an experiment.

In this case since what we want to set up is the statistical test to see if the waves are dying down, then this means we are trying to determine if the wave height are decreasing, so lesser than 16.4 feet. Therefore:

The alternative hypothesis would state                 (ANSWER)

Ha: μ less than 16.4 feet and P-value area is on the left of the mean.

 

While the null hypothesis is the opposite and would state

H0: mu equals 16.4 feet 

4 0
3 years ago
Two hockey pucks are sliding along the ice, towards the same goal, one directly in front of the other. The hockey puck in front
grandymaker [24]

Answer: A.9.2m/s

Explanation:

6 0
2 years ago
Other questions:
  • What is the timeline for the law of conservation of energy
    5·1 answer
  • State the difference between sensible heat and latent heat
    6·1 answer
  • The cpu might be covered by a(n) ________, which dissipates the heat generated by the chip.
    11·1 answer
  • Is it inhumane to keep a cat in one room?
    5·1 answer
  • Assuming the density of the wine to be 1.0 g/ml, what caloric content does the alcohol (ethanol) in a 6-oz glass of wine (177 ml
    11·2 answers
  • A harmonic oscillator begins to vibrate with an amplitude of 1.6 m, but after a time of 1.5 minutes, the amplitude has dropped t
    14·1 answer
  • A geologic event causes changes to the physical makeup of a particular place and occurs _____.
    5·2 answers
  • At what constant rate of acceleration will a car starting from rest cover 18m in the first 3 seconds?
    9·1 answer
  • Which material is a composite? A. gold B.silicon C.polycarbonate D.aluminum
    10·1 answer
  • If you can answer my last post ill give you 75 points pls its very important and please make sure it correct!!!!!!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!