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
Schach [20]
3 years ago
8

NEED HELP!!! ANSWER THESE 5 QUESTIONS FOR 25 POINTS!!!! PLEASE ANSWER!! I WILL GIVE YOU BRAINLIEST

Physics
2 answers:
ladessa [460]3 years ago
4 0
1.A
2. C
3. Not Sure
4. Not Sure
5. Biometrics can help to identify
who's at risk for injuries and when
they're able to safely return, and
they can gauge athlete readiness to
determine when they'll be
performing at an optimal level.
vova2212 [387]3 years ago
4 0

Explanation:

number one:b

number 2:dont know

number 3:d

number 4:d

number 5:b

You might be interested in
a man of mass 50 kg climbs up stairs each of height 0.2 m in 20 seconds .calculate the power of the man​
Delicious77 [7]
How many stairs?
You can use this to find the work
U
W=mgh
And the power by
P=W/T
4 0
3 years ago
Receiver
77julia77 [94]

Answer:

What is the best description for the volume of air volume of air provided in a high quality rescue breath?

Explanation:

A) only Enough air to create a visible rise of the chest.

B) Until you can no longer force air in.

C) plenty of air make sure it is adequate to sustain life

D) clear and obvious rise of the chest, sustained over a few seconds

5 0
2 years ago
Please help will mark Brainliest the
VLD [36.1K]

Answer: 100 units

Explanation:

4 0
2 years ago
****PLEASE HELP**** WILL MARK BRAINLIEST
allochka39001 [22]

Answer:

The Current decreases

Explanation:

HOPE THIS HELPS!

4 0
2 years ago
A 1.20 kg water balloon will break if it experiences more than 530 N of force. Your 'friend' whips the water balloon toward you
soldi70 [24.7K]

Answer:

t = 0.029s

Explanation:

In order to calculate the interaction time at the moment of catching the ball, you take into account that the force exerted on an object is also given by the change, on time, of its linear momentum:

F=\frac{\Delta p}{\Delta t}=m\frac{\Delta v}{\Delta t}       (1)

m: mass of the water balloon = 1.20kg

Δv: change in the speed of the balloon = v2 - v1

v2: final speed = 0m/s (the balloon stops in my hands)

v1: initial speed = 13.0m/s

Δt: interaction time = ?

The water balloon brakes if the force is more than 530N. You solve the equation (1) for Δt and replace the values of the other parameters:

|F|=|530N|= |m\frac{v_2-v_1}{\Delta t}|\\\\|530N|=| (1.20kg)\frac{0m/s-13.0m/s}{\Delta t}|\\\\\Delta t=0.029s

The interaction time to avoid that the water balloon breaks is 0.029s

5 0
3 years ago
Other questions:
  • How much is one degree Celsius in temperature change ?
    9·1 answer
  • Technician A says that a proper U-joint inspection can be done with the driveshaft in place on the vehicle. Technician B says th
    11·1 answer
  • Natalie accelerates her skateboard along a straight path from 4 m/s to 0 m/s in 25.0 s. Find the acceleration.
    11·1 answer
  • You are driving your 1700 kg car at 21 m/s down a hill with a 5.0∘ slope when a deer suddenly jumps out onto the roadway. You sl
    9·1 answer
  • The equilibrium constant for a given reaction... Group of answer choices always increases with temperature. increases with tempe
    12·1 answer
  • A balanced force has a net force of how many Newton’s?
    7·2 answers
  • Two cars are traveling along a straight line in the same direction, the lead car at 24.7m/s and the other car at 29.9m/s. at the
    6·1 answer
  • An object is moved 29 meters with a force of 289 N. what is the work done
    12·1 answer
  • Perhaps you have attended a party where balloons floated. A balloon filled with air does not rise above your head, but a balloon
    7·1 answer
  • Which is better, forward bias or reverse bias, and why ?!<br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!