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
dangina [55]
2 years ago
7

Mrs. Miller is acting a little strange and is pushing as hard as she can against a wall. Using Newton's Laws, what could be say

about the force she is exerting?
Physics
2 answers:
deff fn [24]2 years ago
8 0
Newton’s 3rd Law of Motion
Stells [14]2 years ago
4 0
The wall is exerting the same amount of force back at her
You might be interested in
Please answer the question
AfilCa [17]
The answer is Cㅤㅤㅤㅤㅤ
4 0
3 years ago
An object starts from rest and uniformly accelerates at a rate of 1.25 m/s2 for 7.0 seconds.
stich3 [128]

Explanation:

Since its accelerating, the velocity vs time graph is linear

For displacement we need initial velocity (which is zero because it starts from rest) and final velocity (which is calculatee thro acceleration formula

A= (vf - vi)/t

a= vf-0/t

1.25=vf / 7

1.25*7=vf

8.75 = vf

Now for displacement plug all the values in

X = 1/2(vf-vi)/t formula

The displacement (x) is 30.625 m

For part 3, we know new displacement that is 22m , the final and initial velocities are the same so just plug in the values for same formula above

The answer is t = 5.02

Im pretty sure all the answers are correct

8 0
2 years ago
A car is driving away from a crosswalk. The formula d = t 2 + 2 t expresses the car's distance from the crosswalk in feet, d , i
Ede4ka [16]

Answer:

1) No, the car does not travel at constant speed.

2) V = 9 ft/s

3) No, the car does not travel at constant speed.

4) V = 5.9 ft/s

Explanation:

In order to know if the car is traveling at constant speed we need to derive the given formula. That way we get speed as a function of time:

V(t) = 2*t + 2   Since the speed depends on time, the speed is not constant at any time.

For the average speed we evaluate the formula for t=2 and t=5:

d(2) = 8 ft     and      d(5) = 35 ft

V_{2-5}=\frac{d(5)-d(2)}{5-2}=9 ft/s

Again, for the average speed we evaluate the formula for t=1.8 and t=2.1:

d(1.8) = 6.84 ft     and      d(2.1) = 8.61 ft

V_{1.8-2.1}=\frac{d(2.1)-d(1.8)}{2.1-1.8}=5.9 ft/s

4 0
3 years ago
To determine power, it is necessary to know the A. energy required and the time it takes. B. amount of work and the distance cov
Y_Kistochka [10]
The answer for this would be A. since power is Joules/seconds and energy is rated in Joules
5 0
3 years ago
Read 2 more answers
How does speed measure​
kvv77 [185]

Answer:

Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.

Explanation:

Plz give brainliest!

4 0
3 years ago
Other questions:
  • (a) Calculate the magnitude of the gravitational force exerted by Mars on a 67 kg human standing on the surface of Mars. (The ma
    8·1 answer
  • Describe two forms of energy-efficient transportation.
    5·1 answer
  • Match the player positions with his or her job on the court.
    6·2 answers
  • How do elastic objects behave when different forces are applied?
    12·1 answer
  • Average value of A.c. for complete cycle
    11·1 answer
  • Betty (mass 40 kg), standing on slippery ice, catches her leaping dog (mass 15 kg) moving horizontally at 3.0 m/s. Show that the
    6·1 answer
  • Answer the question plz
    15·1 answer
  • Describe the functions of fluids in the body?<br><br><br>Help​
    11·1 answer
  • Someone please help!!!
    14·1 answer
  • List the planet name and position from the Sun for each one (1, 2, 3)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!