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
Otrada [13]
3 years ago
9

What is the T- test pribcipally a test of?

Physics
1 answer:
Zanzabum3 years ago
4 0
Agility is the answer. Hope this helps have an awesome day!
You might be interested in
Two particles with the same charge will repel each other. True or false
FinnZ [79.3K]
True. Think of a magnet and how they only connect to the opposite charges. 
7 0
3 years ago
A 73-kg Norwegian olympian ski champion is going down a hill sloped at 39 ◦ . The coefficient of kinetic friction between the sk
bazaltina [42]

Answer:

Explanation:

net force on the skier = mg sin 39 - μ mg cos39

mg ( sin39 - μ cos39 )

= 73 x 9.8 ( .629 - .116)

= 367 N

impulse = net force x time = change in momentum .

= 367 x 5 = 1835 kg m /s

velocity of the skier after 5 s = 1835 / 73

= 25.13 m /s

b )

net force becomes zero

mg ( sin39 - μ cos39 ) = 0

μ = tan39

= .81

c )

net force becomes zero , so he will continue to go ahead with constant speed of 25.13 m /s

so he will have speed of 25.13 m /s after 5 s .

5 0
2 years ago
You drop a batitin a stationary elevator and the ball hits the floor in o 50 s. How long does it take for the ball to hit the fl
solmaris [256]

Answer:

option (a) 0.61 s

Explanation:

Given;

Time taken by the ball to reach the ground  = 0.50 s

Let us first calculate the distance through which the ball falls on the ground

from the Newton's equation of motion, we have

s=ut+\frac{1}{2}at^2

where,  

s is the distance

a is the acceleration

t is the time

here it is the case of free fall

thus, a = g = acceleration due to gravity

u =  initial speed of the ball = 0

on substituting the values, we get

s=0\times 0.50+\frac{1}{2}\times9.8\times0.50^2

or

s = 1.225 m

Now,

when the elevator is moving up with speed of 1.0 m/s

the initial speed of the ball = -1.0 m/s   (as the elevator is moving in upward direction)

thus , we have

s=ut+\frac{1}{2}at^2

or

1.225=-1.0\times\ t+\frac{1}{2}\times9.8t^2

or

4.9t^2 - t  - 1.225 = 0

or

t = 0.612 s

hence, the correct answer is option (a) 0.61 s

4 0
3 years ago
Please someone knows the answer? it is physics ​
Assoli18 [71]

Answer:C

Explanation:  I took the quiz if you don't believe me then your gonna miss the problem.

3 0
2 years ago
❐мoderators
Solnce55 [7]

Answer:

3m2

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • The seatbelt across your chest should have about ______ fist width of slack
    13·1 answer
  • A uniform rod of mass m has very tiny lead balls, each of mass m, welded to each end. If the rod hangs in empty space, and a for
    15·1 answer
  • If you walk eight blocks north and then three blocks south from your home what is your position compared to your home? what dist
    15·1 answer
  • A car accelerate from a stop to 27 m/sec in 5 seconds. What was the car's acceleration?
    6·1 answer
  • Fill in the blank: An object is most likely to sink in water if _________________.
    11·2 answers
  • If you have just combed your hair and you hold the comb near a small, uncharged object, what will most likely happen?
    9·2 answers
  • Which statement about speed and/or velocity is true?
    12·2 answers
  • A 0.650 kg block is attached to a spring with spring constant 18.0 N/m . While the block is sitting at rest, a student hits it w
    13·1 answer
  • Karla Ayala pulls a sled on an icy road (dangerous!). Because of Karla's pull, the tension force is 151 N, and the rope makes a
    13·1 answer
  • Explain the working and principle of perisocope.​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!