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
hjlf
4 years ago
6

A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car’s average acceleration? A. 0.17 m/s2 B. 1.67

m/s2 C. 6 m/s2 D. 7 m/s2 E. none of the above
Physics
2 answers:
aliya0001 [1]4 years ago
5 0
Acceleration =velocity /time
=42/7
=6
tamaranim1 [39]4 years ago
4 0

C. 6 m/s2 is correct

You might be interested in
I need helpppppppppppppppppp!
allsm [11]

Answer:

i think its B

Explanation:

but check it before do it  

3 0
3 years ago
Read 2 more answers
An object with 10 protons 14 electrons and 5 neutrons would have what charge
True [87]

Answer:-4

Explanation:because

10protone +10

14 electrone-14

5 neutrones0 the result will be

10-14=-4

7 0
3 years ago
A 0.0450-kg golf ball initially at rest is given a speed of 25.2 m/s when a club strikes. part a part complete if the club and b
Ksenya-84 [330]
We are given information:
m = 0.0450 kg
Δv = 25.2 m/s
Δt = 1.95 ms = 0.00195s

To find force we use formula:
F = m * a

a is acceleration. To find it we use formula:
a = Δv / Δt 
a = 25.2 / 0.00195
a = 12923.1 m/s^2

Now we can find force:
F = 0.0450 * 12923.1
F = 581.5 N 


To check the effect of the ball's weight on this movement we need to calculate it and then compare it to this force.
W = m * g
W = 0.0450 * 9.81
W = 0.44145 N 

We can see that weight is much smaller than the applied force so it's influence in negligible.
3 0
3 years ago
Which best explains how the diffraction pattern observed in young’s experiment supports the wave theory of light?.
KIM [24]

Answer: the airy pattern can only arise from wave propagation

Explanation:if particles went in straight lines through a slit, they would progate linearly and not interfere. The airy pattern arises from diffraction as waves interfere, producing peaks (constructive interference where peaks of waves from each slit coincide) and troughs (destructive interference where peaks and troughs of waves from each slit cancel out). If intensity rather than field is measured nodes occur where 0 values line up instead of troughs

6 0
2 years ago
What shape is the graph produced by a force vs acceleration graph?
hammer [34]

The answer to the question<u> What shape is the graph produced by a force vs acceleration graph</u> is A. Linear

Since Force, F = ma where m = mass and a = acceleration. For constant mass, F ∝ a. That is, F is directly proportional to acceleration, a.

Since this is a linear relationship, the graph of force vs acceleration will be linear.

The answer to the question<u> What shape is the graph produced by a force vs acceleration graph</u> is A. Linear

Learn more about graphs here:

brainly.com/question/24322515

6 0
2 years ago
Other questions:
  • Two objects that may be considered point masses are initially separated by a distance d. The separation distance is then decreas
    9·1 answer
  • Which group's right to vote is protected by the Nineteenth Amendment? Question 7 options: African Americans Native Americans 18-
    13·2 answers
  • If you break quartz to learn if it splits smoothly in a certain direction, what physical property are you testing?
    13·2 answers
  • all but which of the following might cause a tsunami? a. volcanic eruption b. flooding c. landslide d. earthquake
    12·2 answers
  • In a RLC circuit, a second capacitor is connected in parallel with the capacitor previously in the circuit. What is the effect o
    10·1 answer
  • Asap PLEASE HELP!!!!<br> Match these vocabulary words with their definitions.
    15·1 answer
  • An element’s __________ is its row in the periodic table.
    8·1 answer
  • Calculate the mass of material whose density is 0.798gcm and the mass of 25g ​
    9·1 answer
  • Pls help!! science. ​
    5·1 answer
  • The strength of an object's gravitational force is affected by both____<br> and____
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!