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
andrew11 [14]
4 years ago
6

7. A 1.50 x 103 kg car accelerates uniformly from rest to 10.0 m/s in 3.00 s.

Chemistry
1 answer:
MArishka [77]4 years ago
8 0

75,000‬J

25,000W

Explanation:

Given parameters:

Mass of car = 1500kg

Velocity  = 10m/s

time taken = 3s

Unknown:

Work done = ?

Power delivered by engine = ?

Solution:

Work done here is the kinetic energy possessed by the car as it covers the distance.

Work done and energy are related quantities.

  Work done = Kinetic energy = \frac{1}{2} mv²

m is the mass of the body

v is the velocity

   Therefore, inputting the parameters gives:

      K.E  = \frac{1}{2}  x 1500 x 10² = 75,000‬J

The work done is 75,000‬J

Power is the rate at which work is done:

   Power = \frac{work done }{time}

 Power = \frac{75000}{3} = 25000W

learn more:

Kinetic energy brainly.com/question/9059731

Power supply brainly.com/question/4322575

#learnwithBrainly

You might be interested in
By the way...... what do those symbols for the elements have in common (for number 7-11): Pb, Au, Cu, Hg, Na ? *
Keith_Richards [23]

Answer:

those have symbols for their Latin or Greek name

Explanation:

hope it helps

8 0
3 years ago
Read 2 more answers
What do you call the ability of a gas to completely spread out and mix with other substances?
olganol [36]
The ability for gas to mix with other substances is diffusion.
6 0
3 years ago
Read 2 more answers
State two reasons atom X is different than atom X+1
insens350 [35]

Explanation:

atom X

it is neutral

and may not exist independently

atom X+1

it is ion which has a charge on it positive or negative

it exists independently

6 0
3 years ago
What is chemical reaction?​
Natali5045456 [20]

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Or

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

4 0
2 years ago
1. Write the molecular equation, ionic equation, and net ionic equation for the reaction between calcium chloride and ammonium p
aalyn [17]

Answer:

(molecular) 3 CaCl₂(aq) + 2 (NH₄)₃PO₄(aq) ⇄ Ca₃(PO₄)₂(s) +  6 NH₄Cl(aq)

(ionic) 3 Ca²⁺(aq) + 6 Cl⁻(aq) + 6 NH₄⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s) + 6 NH₄⁺(aq) + 6 Cl⁻(aq)

(net ionic) 3 Ca²⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s)

Explanation:

The molecular equation includes al the species in the molecular form.

3 CaCl₂(aq) + 2 (NH₄)₃PO₄(aq) ⇄ Ca₃(PO₄)₂(s) +  6 NH₄Cl(aq)

The ionic equation includes all the ions (species that dissociate in water) and the species that do not dissociate in water.

3 Ca²⁺(aq) + 6 Cl⁻(aq) + 6 NH₄⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s) + 6 NH₄⁺(aq) + 6 Cl⁻(aq)

The net ionic equation includes only the ions that participate in the reaction and the species that do not dissociate in water. In does not include <em>spectator ions</em>.

3 Ca²⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s)

3 0
3 years ago
Other questions:
  • The molar heat of fusion for water is 6.01 kJ/mol. How much energy must be added to a 75.0-g block of ice at 0°C to change it to
    15·2 answers
  • C2H5OH is able to dissociate in water to conduct an electric current. This compound could be classified as
    9·1 answer
  • List the steps needed to convert the number of atoms to the mass of an element. (Hint: there are 2).
    5·1 answer
  • This is the normal nucleotide sequence on a DNA strand:
    14·2 answers
  • How do you explain density column?
    8·1 answer
  • 21+ Cl2 → 12+201 -
    9·1 answer
  • The emission spectrum for an element is? Select all that apply
    8·1 answer
  • Draw the structure of the alkene with the molecular formula C6H10 that reacts with Br2 to give this compound.
    13·1 answer
  • Describe how you would find out whether copper(ii) oxide was a catalyst for the decomposition of hydrogen peroxide solution. You
    9·1 answer
  • Based on the given information, which of the following is the students' correct conclusion about their experiment?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!