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
Rzqust [24]
3 years ago
9

A 5kg object accelerates from 3m/s to 7m/s in 5 seconds. Calculate the force required

Physics
1 answer:
Ad libitum [116K]3 years ago
3 0

Answer:

4N

Explanation:

a = (7-3)/5 = 0.8m/s^2

F = ma = (5)(0.8) = 4 Newtons

You might be interested in
A disadvantage of some geophysical techniques based on magnetism is that their use in urban areas may be subject to distortion r
julsineya [31]

Answer:

Resistivity Method

Explanation:

A disadvantage of some geophysical techniques based on magnetism is that their use in urban areas may be subject to distortion resulting from power lines and metals in the immediate vicinity. One method that can be used in such areas relies on soil moisture and the ground's resistance to electricity and is known as Resistivity.

It is usually carried out by injecting a small electrical current through the earth and measured a subtle  sub-surface change in resistance over a given area.

3 0
3 years ago
is weigh-in time for the local under-85-kg rugby team. The bathroom scale used to assess eligibility can be described by Hooke’s
yulyashka [42]

Answer:

a) 156960 N/m

b) Yes the player can play on the team.

Explanation:

F = Force

a = Acceleration due to gravity = 9.81 m/s²

m = Mass

k = Spring constant

x = Deformation length of spring

F = ma

From Hooke's law

F=kx\\\Rightarrow ma=kx\\\Rightarrow k=\frac{ma}{x}\\\Rightarrow k=\frac{120\times 9.81}{0.0075}\\\Rightarrow k=156960\ N/m

The effective spring constant is 156960 N/m

When x = 0.48 cm = 0.0048 m

m=\frac{kx}{a}\\\Rightarrow m=\frac{156960\times 0.0048}{9.81}\\\Rightarrow m=76.8\ kg

The mass of the player is 76.8 kg which is less than the required mass limit of the players' which is 85 kg. So, the player is eligible to play.

5 0
3 years ago
Greatest to least 56.2,56.32,56.321
Juli2301 [7.4K]
56.321, 56.32, 56.2 is the answer
3 0
3 years ago
Read 2 more answers
What is the difference between an electrolyte and a nonelectrolyte
Pepsi [2]

Answer:

The difference between the Electrolyte and Non-Electrolyte are given in the explanation part.    

Explanation:

  • ELECTROLYTES are salts or molecules which ionize in solution fully.
  • Electrolyte solutions thus conduct electricity readily.    

 whereas

  • NON ELECTROLYTES in water do not dissociate from ions,
  • non-electrolyte solutions do not conduct electricity.
7 0
4 years ago
A 10 Ω resistor is connected to a 120-V ac power supply. What is the peak current through the resistor?
11111nata11111 [884]

Answer:

Peak current = 16.9 A

Explanation:

Given that

RMS voltage = 120 Volts

V_{rms} = 120 V

AC is connected across resistance

R = 10 ohm

now by ohm's law

V = i R

120 = i (10)

i_{rms} = \frac{120}{10} = 12 A

now peak value of current will be given as

i_{peak} = \sqrt{2} i_{rms}

i_{peak} = \sqrt2 (12) = 16.9 A

8 0
3 years ago
Other questions:
  • Acceleration question plz help
    6·1 answer
  • Which of the following most accurately represents John Dalton’s model of the atom?
    14·2 answers
  • A location gets its drinking water from wells drilled into the Earth. The people in the location have reported that their drinki
    9·2 answers
  • How often is water added to the Earth system?
    10·1 answer
  • A driver of a car stopped at a gas station to fill up his gas tank. He looked at his watch, and the time read exactly 4 : 45 4:4
    11·1 answer
  • Which one of the following temperatures is equal to 5°c?
    9·2 answers
  • A block that has a mass M = 500 g is hanging at rest on a light string. A projectile with a mass m = 15 g moving horizontally wi
    14·1 answer
  • A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is
    15·2 answers
  • How would you explain conduction?
    8·2 answers
  • A 1000 kg rocket carrying 25 kg of fuel and oxygen rises at a velocity of 305 m/s. If all the mass of fuel and oxygen is burned
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!