Answer:
d. aeration
Explanation:
A 0.2 m/sec²
B 5 m/sec²
C10 m/sec²
D 20 m/sec2
An object starting from rest accelerates at a rate of 3.0 meters/seconds squared for
the obiect at the end of this time is
Answer:
Let's solve these two problems step by step:
1. The acceleration of the car:
You can use the formula for acceleration, which is:
\(a = {v - u}/{t})
where:
- \(a\) is acceleration,
- \(v\) is final velocity (10 m/s in this case),
- \(u\) is initial velocity (0 m/s since the car starts from rest), and
- \(t\) is time (2 seconds).
Plugging in the values:
\(a = {10 m/s - 0 m/s}/{2 s} = {10 m/s}/{2 s} = 5 m/s²)
So, the acceleration of the car is 5 m/s², which corresponds to option B.
2. The final velocity of an object starting from rest with an acceleration of 3.0 m/s² after a certain time:
You can use the following kinematic equation:
\(v = u + at)
where:
- \(v\) is the final velocity (which you want to find),
- \(u\) is the initial velocity (0 m/s since it starts from rest),
- \(a\) is the acceleration (3.0 m/s²), and
- \(t\) is the time (you haven't provided this value).
If you provide the value of time, I can calculate the final velocity for you.
Answer:
the answer is pounds
Explanation:
c) What is the magnitude of the contact force on the student by the ground?
Answer:
Explanation:
a) The magnitude of the net force on the student = 0 N since the student is standing still on level ground and upward reaction force = downward force.
b) the magnitude of the contact force on the student by the backpack = 80 N since the student was backing the backpack
c) the magnitude of the contact force o the student by the ground = 550 N + 80 N = 630 N reactional force on the student
B. red
C. yellow
D. white
Answer:
C. yellow
Explanation:
The stars have different color depending on their temperature, in general the more blue or violet a star is, the higher its surface temperature, and the more orange or red, the lower its surface temperature.
In the stellar classification, stars with temperatures ranging from 5000K to 6000K are G type stars which are characterized by having a yellow color.
An example of a G-type star is the sun, which has a surface temperature of around 5700K.
How fast would Keesha say the ball is traveling toward her?
Answer:
B
Explanation: