Answer:
Frequency = 3.0 Hertz
Explanation:
Given the following data;
Period = 0.333 seconds
To find the frequency;
Mathematically, frequency of a wave is given by the formula;
Frequency = 1/period
Substituting into the formula, we have;
Frequency = 1/0.333
Frequency = 3.0 Hertz
B. Slow it down
C. Change its direction
D. Apply balanced forces
Answer:
a) Kinetic energies
K₁ = 1.2 J
K₂ = 7.5 J
b) The bullet that has the highest kinetic energy is the one with the highest speed , v = 50 m/s , K₂ = 7.5 J
c) K₂ -K₁ = 6.3 J
Explanation:
The kinetic energy (K) is that due to the movement of a body and is calculated as follows:
K = (1/2) m*v² (J)
Where :
m : the mass of the body ( kg)
v is the speed of the body (m/s)
Data
m₁ = m₂ = 0.006 Kg
v₁ = 20 m/s
v₂ = 50 m/s
a)Calculation of the kinetic energy
K₁ = (1/2) (m₁)*(v₁)²
K₁ = (1/2) (0.006)*(20)²
K₁ = 1.2 J
K₂= (1/2) (m₂)*(v₂)²
K₂ = (1/2) (0.006)*(50)²
K₂ = 7.5 J
b) K₂ ˃ K₁
The bullet that has the highest kinetic energy is the one with the highest speed , v = 50 m/s, K₂ = 7.5 J
c) Difference of their kinetic energies (K₂ -K₁)
K₂ -K₁ = 7.5 J - 1.2 J = 6,3 J
Answer:100 g of ca
Explanation:
what is the puppy's acceleration?
Answer:
-5.6m/s²
Explanation:
Given parameters:
Initial speed = 11.2m/s
Time of running = 2s
Unknown:
Acceleration of the puppy = ?
Solution:
Acceleration is the rate of change of velocity with time.
So;
Acceleration =
final speed = 0m/s
Acceleration = = -5.6m/s²
The puppy's acceleration is -5.6 m/s².
Acceleration is a measure of how quickly an object changes its speed. The formula for acceleration is a = Δv / Δt, where Δv is the change in velocity and Δt is the change in time. To find the puppy's acceleration, we can use the formula for acceleration:
acceleration = (final velocity - initial velocity) / time.
In this case, the initial velocity is 11.2 m/s and the final velocity is 0 m/s (since the puppy stops running). The time taken to stop is 2 s.
Substituting the values into the formula, we get:
acceleration = (0 m/s - 11.2 m/s) / 2 s.
Simplifying the equation gives us the acceleration of the puppy, which is -5.6 m/s².
#SPJ3