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
Gnoma [55]
2 years ago
5

In-Class Problem #2

Physics
1 answer:
love history [14]2 years ago
4 0

Answer:

8.16m/s south

Explanation:

North is the negative direction.

60kg*(-5m/s)+79.5kg*v=(79.5kg+60kg)*(2.5m/s)

-300kgm/s+79.5kg*v=348.75kgm/s

79.5kg*v=648.75kgm/s

v=8.16m/s

You might be interested in
Work out the efficiency of a lamp that transfers 7500 kJ of energy, 4500 kJ of which is transferred into light energy, 2900 kJ o
aev [14]
I think the answer is 0.4
so 40%

hope this helps :)
8 0
3 years ago
Suppose a container holds 1000 hydrogen molecules and 1000 oxygen molecules that react to form water. how many water molecules w
Murrr4er [49]

The reaction is:

H_{2} +  \frac{1}{2} O_{2} =  H_{2}O

From the equation, he limiting reactant is the oxygen. Assuming 100% yield, all of the oxygen must react to form water.

1000 mol O_{2} * (1 mol H_{2}O ÷ ½ mol O_{2}) = 2000 moles water produced

6 0
3 years ago
What substance is represented by chemical formula C60​
olga55 [171]
Buckminsterfullerene
4 0
4 years ago
Genes are located within a cell’s BLANK. Each gene controls the production of one or more specific BLANK. Changes in the structu
Thepotemich [5.8K]

Answer:

Genes are located in the CHROMOSOME

Explanation:

chromosome is were genes are located

7 0
3 years ago
A current of 1.75 A flows through a 55.4 Ω resistor for 9.5 min. How much heat was generated by the resistor? Answer in units of
kirill115 [55]

Answer:

9.67\times 10^4 J

Explanation:

We are given that

Current=I=1.75 A

Resistance =R=55.4 ohm

Time=t=9.5 min=9.5\times 60=570 s

1 min=60 s

We have to find the heat generated by the resistor.

We know that

Heat=E=I^2Rt

Using the formula

Heat,E=(1.75)^2\times 55.4\times 570=9.67\times 10^{4} J

Hence, the heat generated by the resistor =9.67\times 10^4 J

6 0
3 years ago
Other questions:
  • how long does it take a 750watt heater operating at full rating to rais the temperature of 1kg of water From 40°C to 70°C {S.H.C
    11·1 answer
  • If a boat and its riders have a mass of 1200 kg and the boat drifts in at 1.8 m/s how much work does sam do to stop it?
    5·1 answer
  • "room temperature" is often taken to be 68âf. what is this on the celsius scale?
    13·1 answer
  • How does the velocity, the distance it has fallen and the acceleration of a free falling body change with time?
    13·1 answer
  • What happens to the gas pressure within a sealed gallon can when it is heated? when it is cooled?
    14·1 answer
  • ​Al2(SO4)3 + BaCl2 BaSO4 + AlCl3
    10·1 answer
  • When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
    9·1 answer
  • How long does it take for an airplane to change its velocity from 140 m/s to 180 m/s if its
    15·1 answer
  • Help with either I don’t understand this I know W=f*d but don’t get how it applies here
    6·1 answer
  • What is the relationship between impulse and momentum.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!