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
qaws [65]
3 years ago
13

Jenna is learning how to ice skate. She wants her mother to pull her along so that she has an acceleration of 0.76 m/s2. If Jenn

a’s mass is 32.0 kg, with what force does her mother need to pull her? (Neglect any resistance between the ice and Jenna’s skates.)
Physics
1 answer:
Mademuasel [1]3 years ago
8 0
So you can use the equation force = mass x acceleration so if the equation is 0.76 and her mass is 32 you do 32 x 0.76 which is 24.32 N hope this helps :)
You might be interested in
An ocean wave traveling in one direction has a wavelength of 1.0 m and a frequency of 1.25 Hz. Take the direction of wave propag
aliina [53]

Answer:

a) v=1*1.25=1.25\: m/s

b) y(x,t)=2sin(2\pi( x-1.25 t)  

c) y(3,10)=1.73 m    

Explanation:

a) The speed of a wave is given by the following equation:

v=\lambda f

Where:

λ is the wavelength

f is the frequency

v=1*1.25=1.25\: m/s

b) The harmonic wave has the following equation:

y=Asin(kx-\omega t)

A is the amplitude (2 m)

k is the wavenumber (2π/λ)  

ω is the angular frequency (2πf)

y(x,t)=2sin(2\pi x-2\pi*1.25 t)  

y(x,t)=2sin(2\pi( x-1.25 t)  

c) Here we need to find the heigth at x=3 m and t =10 s, so we need to find y(3,10).

y(3,10)=2sin(2\pi(3-1.25*10)

y(3,10)=2sin(2\pi(3-1.25*10)              

y(3,10)=1.73 m              

I hope it helps you!

 

6 0
3 years ago
A box with a mass of 2 kg accelerates in a straight line
mihalych1998 [28]

Answer: 16N

Explanation:

Given that:

mass of box M= 2 kg

Initial speed V1 = 4 m/s

Final speed V2 = 8 m/s

Time taken T= 0.5 s

Average strength of this force F = ?

Now, recall that Force is the rate of change of momentum per unit time

i.e Force = momentum / time

Hence, F = M x (V2 - V1)/T

F = 2kg x (8 m/s - 4 m/s) / 0.5s

F = 2kg x (4 m/s / 0.5s)

F = 2kg x 8 m/s/s)

F = 16N

Thus, the average strength of this

force is 16 newton.

7 0
3 years ago
In an open system, the vapor pressure is equal to the outside air pressure. true false
Anvisha [2.4K]
False if the pressure is in an open system it could not be equal to the outside

8 0
3 years ago
Read 2 more answers
What is the kinetic energy of a golf ball with a mass of 0.046 kg traveling at 15.5<br> m/s?
Serjik [45]

Answer:

<h2>5.53 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 0.046 \times {15.5}^{2}  \\  = 0.023 \times 240.25 \\  = 5.52575

We have the final answer as

<h3>5.53 J</h3>

Hope this helps you

3 0
3 years ago
Please help the question is the picture below.
balu736 [363]

Its 30 kg cause I got 30 kg dude.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Explain why dogs pant during hot summer days using the concept of evaporation?
    14·1 answer
  • When observing a group of children at a daycare center, Emily made the following observations: Five year old children played in
    13·2 answers
  • Rank these significant figures numbers from the least to the most
    8·1 answer
  • How much work does the electric field do in moving a proton from a point with a potential of +130 v to a point where it is -70 v
    14·1 answer
  • Is kicking a ball a conservation of momentum ?
    14·1 answer
  • A spy satellite uses a telescope with a 1.7-m-diameter mirror. It orbits the earth at a height of 180 km.
    9·1 answer
  • A block of mass m is initially moving to the right on a horizontal frictionless surface at a
    6·2 answers
  • You're an electrical engineer designing an alternator (the generator that charges a car's battery). Mechanical engineers specify
    6·1 answer
  • you are given two circuits with two batteries of emf e and internal resistance r1 each. circuit a has the batteries connected in
    12·1 answer
  • Jennifer runs 5 miles east, then stops to take a break. after her break, she continues running 4 more miles east. what is her di
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!