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
andrezito [222]
3 years ago
12

A nurse counts 66 heartbeats in one minute. What is the period of the hearts oscillation? In minutes

Physics
1 answer:
inn [45]3 years ago
7 0

The frequency is  66 / minute .

The period is 1/frequency = minute / 66 =

(60 seconds) / 66 = 0.91 second

You might be interested in
If two swimmers compete in a race, does the faster swimmer develop more power?
valkas [14]
Power is equal to energy per unit time. In this case, power is proportional to energy while is inversely proportional to time,on the other hand. Given the two swimmers exerts same amount of energy but the faster swimmer just does things in faster time, then the faster swimmer should develop more power from shorter time
7 0
3 years ago
A box falls off of a tailgate and slides along the street for a distance of 62.5 m. Friction slows the box at –5.0 m/s2. At what
Mila [183]

Answer:

25 m/s

Explanation:

This question can be solved using equation of motion

v^2 = u^2 + 2as

where

v is the final velocity

u is the initial velocity

s is the distance covered while moving from initial to final velocity

a is the acceleration

_____________________________________________

Given

box moved for distance of 62.5 m

Friction slows the box at –5.0 m/s2----> this statement means that there is deceleration , speed of truck decreases by 5 m/s in every second until the box comes to rest. Friction causes this deceleration.

thus in this problem

a = -5.0 m/s2

V = 0   as body came to rest due to friction deceleration

u the initial velocity we have to find

the initial velocity of box will be the same as speed of truck, as the box was in the truck and hence box will pick the speed of truck.

so if we find speed of box, we will be able get sped of truck as well.

using equation of motion

v^2 = u^2 + 2as\\0^2 = u^2 + 2*-5* 62.5\\0 = u^2 - 625\\u^2 = 625\\\sqrt{u^2} = \sqrt{625} \\u = 25

Thus, initial speed with the truck was travelling was 25 m/s.

3 0
3 years ago
If an inclined plane is 6 m long and 2 m high, what is its mechanical advantage?
choli [55]

Answer:

the answer should be C owo

5 0
3 years ago
Read 2 more answers
Are the two atoms shown below in the image from the same element?
kvasek [131]

The answer is yes

They are isotopes.

7 0
3 years ago
Can yall Please fill out them blanks i need help it's due Today.
hjlf

Answer:

tech ed class

Explanation:

4 0
3 years ago
Other questions:
  • If a fast-moving car making a loud noise approaches and moves past the person, what will happen as the distance between the two
    10·2 answers
  • Which part of an atom is responsible<br>fon the flow of electricity?*​
    11·1 answer
  • Two very flat, metallic plates separated a distance d have a potential difference of 600 Volts between them as shown below. A pr
    10·1 answer
  • Assume that charge −q is placed on the top plate, and +q is placed on the bottom plate. What is the magnitude of the electric fi
    12·1 answer
  • Two resistors of resistances R1 and R2, with R2&gt;R1, are connected to a voltage source with voltage V0. When the resistors are
    11·1 answer
  • An electron is moving at a speed of 4.8 × 10 6 m/s at an angle of 30.0° with respect to a uniform magnetic field of 9.2 × 10 –4
    6·1 answer
  • he force between two long parallel conductors is 15 kg/metre. the conductor spacing is 10 cm. If one conductor carries twice the
    5·1 answer
  • An object has a mass of 7g and a volume of 14cm. What is the density
    14·1 answer
  • F?=75N,F?=40N,F?=75N,F?=90N.
    9·1 answer
  • t. In the fig. the long straight wires at separatioad-16.0 cm carr currents i1=3.6 mA and i2=3.00 i1 out the page a, were on the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!