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
bulgar [2K]
2 years ago
14

Two workers push on a wooden crate. One worker push with a force of 543 N and the other with a force of 333 N. The mass of the w

ooden crate is 206 kg. What is the acceleration of the crate?
Physics
1 answer:
Vinil7 [7]2 years ago
5 0

Answer:

a=4.2524\ m.s^{-2}

Explanation:

Given:

two workers push a crate.

  • Force by first worker, F_1=543\ N
  • force by second worker, F_2=333\ N
  • mass of crate, m=206\ kg

(Assuming that both the workers push in the same direction.)

We know that,

<u>Acceleration is given as:</u>

a=\frac{F}{m}

a=\frac{F_1+F_2}{m}

a=\frac{543+333}{206}

a=4.2524\ m.s^{-2}

You might be interested in
Electromagnetic waves with low frequencies have been used for long-distance underwater communication. These waves most likely be
Romashka [77]
These waves most likely belong to the part<span> of the electromagnetic spectrum that contains radio waves, since radio waves have the lowest frequency of any of the other waves.</span>
7 0
2 years ago
Two particles having charges of 0.440 nC and 11.0 nC are separated by a distance of 1.80 m . 1) At what point along the line con
Harlamova29_29 [7]

Answer:

a) 0.3 m

b) r = 0.45 m

Explanation:

given,

q₁ = 0.44 n C   and q₂ = 11.0 n C

assume the distance be r from q₁  where the electric field is zero.

distance of point from q₂  be equal to 1.8 -r

now,

        E₁ = E₂

\dfrac{K q_2}{(1.8-r)^2} = \dfrac{K q_1}{r^2}

(\dfrac{1.8-r}{r})^2= \dfrac{q_2}{q_1}

\dfrac{1.8-r}{r}= \sqrt{\dfrac{11}{0.44}}

1.8 = 6 r

r = 0.3 m

<h3>b) zero when one charge is negative.</h3>

let us assume  q₁  be negative so, distance from  q₁ be r

from charge q₂ the distance of the point be 1.8 +r

now,

   E₁ = E₂

\dfrac{K q_2}{(1.8+r)^2} = \dfrac{K q_1}{r^2}

(\dfrac{1.8+r}{r})^2= \dfrac{q_2}{q_1}

\dfrac{1.8+r}{r}= \sqrt{\dfrac{11}{0.44}}

1.8 =4 r

r = 0.45 m

4 0
3 years ago
A 8.00g sample of substance (substance, molar mass = 152.0 g/mol) was combusted in a bomb calorimeter with a heat capacity of 6.
aleksandrvk [35]

Answer:

ΔH°comb=-5899.5 kJ/mol

Explanation:

First, consider the energy balance:

m_{c} *Cp*(T_{2}-T_{1})=-n_{s} *H_{c} Where m_{c} is the calorimeter mass and n_{s} is the number of moles of the samples; H_{c} is the combustion enthalpy. The energy balance says that the energy that the reaction release is employed in rise the temperature of the calorimeter, which is designed to be adiabatic, so it is suppose that the total energy is employed rising the calorimeter temperature.

The product m_{c} *Cp is the heat capacity, so the balance equation is:

6.21\frac{kJ}{K}*(75-25)=-8.00g*\frac{mol}{152.0g}*H_{c}

So, the enthalpy of combustion can be calculated:

H_{c}=-5899.5\frac{kJ}{mol}

I will be happy to solve any doubt you have.

4 0
3 years ago
A 1200 kg car traveling east at 4.5 m/s crashes into the side of a 2100 kg truck that is not moving. During the collision, the v
Rasek [7]

Answer:

Explanation:

This is a simple Law of Momentum Conservation problem of the inelastic type. The equation for this is

[m_1v_1+m_2v_2]_b=[(m_1+m_2)v]_a  Filling in:

[1200(4.5)+2100(0)]=[(1200+2100)v] which simplifies to

5400 + 0 = 3300v

so v = 1.6 m/s to the east, choice B

6 0
2 years ago
The organ system that moves blood around your body?
dusya [7]
The cardiovascular system moves blood through hour body. It is made up of the Heart pumping the blood that is circulated around the body through its networks of arteries, veins and capillaries. The cardiovascular and lymphatic systems together make up the circulatory system.
3 0
3 years ago
Other questions:
  • The following graph shows the rates of decay for four parent isotopes. Based on the graph, which parent isotope most likely has
    11·2 answers
  • 25° 20' 42" S 131° 2' E<br> 1. What is the place?
    13·1 answer
  • Two manned satellites approaching one another at a relative speed of 0.450 m/s intend to dock. The first has a mass of 4.50 ✕ 10
    10·1 answer
  • Identical +7.67 μC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed
    15·1 answer
  • Two men decide to use their cars to pull a truck stuck in mud. They attach ropes and one pulls with a force of 598 N at an angle
    15·1 answer
  • Describe what happens to the average kinetic energy of water molecules as water freezes.
    10·1 answer
  • Batman, whose mass is 89.5 kg, is holding on to the free end of a 13.4 m rope, the other end of which is fixed to a tree limb ab
    12·1 answer
  • For an object to appear red, what must happen?
    12·1 answer
  • A kickoff sends a football with an initial velocity of 25 m/s at an angle of 50
    15·1 answer
  • A box has a mass of 6.0 kg. What is its weight on the mars, where the acceleration due to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!