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
Anna71 [15]
4 years ago
6

HELP ASAP!!

Physics
2 answers:
Sidana [21]4 years ago
7 0

Answer:

700 N

Explanation:

force divides in both the hand's

Stells [14]4 years ago
5 0

Answer:

the answer is actually 762 N

Explanation:

I put 700 N and got it wrong so

You might be interested in
The frequency of an electromagnetic wave is 1E5 Hz. What is the wavelength of the light in meters?
astra-53 [7]
Just use the formula
speed=Frequency X Wavelength 
where speed of electromagnetic waves in vacuum is always 3X10^8
3 0
3 years ago
How will you show that white light is made of several colours?
Leviafan [203]

Answer:

Newton passed sunlight through a glass prism to separate the colors into a rainbow spectrum. He then passed sunlight through a second glass prism and combined the two rainbows. The combination produced white light. His simple experiment proved conclusively that white light is a mixture of colors.

hope this helps

5 0
3 years ago
A bicycle wheel is rotating at 49 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration
raketka [301]
In 9 sec, it increases the angular velocity by (0.45 x 9) rad/s which will give us 4.05 rad/s 
Now get the angular velocity and divide it 2pi = 4.05 by 2(pi) to give how many revolutions 4.05 rad is equivalent to = 0.6446 rps 
Them, multiply this by 60 to get it from rps to rpm increase (0.6446 x 60)=38.676 rpm 
Add this and the starting revolution frequency of 49 rpm to give: (49 rpm + 38.676 rpm) = 87.6760 rpm
6 0
4 years ago
Read 2 more answers
A spacecraft is fueled using hydrazine (N2H4; molecular weight of 32 grams per mole [g/mol]) and carries 1640 kilograms [kg] of
Sauron [17]

Answer:

The value is t = 689.029 \  hours

Explanation:

From the question we are told that

The molar mass of hydrazine is Z =  32 g/mol = \frac{32}{1000} = 0.032 \  kg/mol

The initial temperature is T_i  =  -186 ^o F = (-186-32) *\frac{5}{9} +273.15 = 152\ K

The final temperature is T_f  =  78 ^o F = (78-32) *\frac{5}{9} +273.15 = 298.7 \ K

The specific heat capacity is c_h  =  0.099 [kJ/(mol K)] = 0.099 *10^3 J/(mol/K)

The power available is P = 300 \ W

The mass of the fuel is m =   1640 \  kg

Generally the number of moles of hydrazine present is

n  =  \frac{m}{Z}

=> n  =  \frac{1640}{= 0.032}

=> n  =  51250 \ mol

Generally the quantity of heat energy needed is mathematically represented as

Q =  n * c_h * (T_f -T_i)

=> Q =  51250  * 0.099 *10^3  * (298.7 - 152)

=> Q =  7.441516913 * 10^{8} \  J

Generally the time taken is mathematically represented as

t =  \frac{Q}{P}

=> t =  \frac{7.441516913 * 10^{8} }{300}

=> t = 2480505.6377 s

Converting to hours

t = \frac{2480505.6377}{3600}

=> t = 689.029 \  hours

6 0
3 years ago
What is the specific heat of a substance that absorbs 1600 joules of heat when a sample
kramer

Answer:

8.08 J/g °C

Explanation:

Q=m*Cp*ΔT-->

Cp=Q/(m*ΔT) -->

Cp=1600/[18*(31-20)]-->

Cp=8.08 J/g °C

6 0
3 years ago
Other questions:
  • The voltage entering a transformer’s primary winding is 120 volts. The primary winding is wrapped around the iron core 10 times.
    13·2 answers
  • A block of mass m 5 kg slides with an initial speed vi = 5 m/s to the right toward a ramp of mass M = 20 kg. The ramp itself can
    5·1 answer
  • A glass plate whose index of refraction is 1.66 is immersed in a liquid. The surface of the glass is inclined at an angle of 44º
    15·1 answer
  • What is the difference between burning and heating? How can you tell in the lab if you are heating or burning?
    15·1 answer
  • Compare the electric and gravitational force between the electron and the proton in a hydrogen atom. The electric charge of the
    14·1 answer
  • g What is the specific heat of silver? The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to rai
    14·1 answer
  • ok this question is for y'all how do what is the coriolis effect and what do it produce and how and i know the answer
    9·1 answer
  • A 630 W bulb and a 315 W bulb are both designed to operate at standard household voltage of 120 V. Determine which bulb has the
    9·1 answer
  • A bobsled accelerates from rest at a constant rate of 2 m/s2. How fast is it going after 3.5 seconds
    15·1 answer
  • What is the momentum of a 8kg ball rolling at 25 m/s?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!