Answer:
Density.
Explanation:
If the object is more dense than the fluid, it will sink, if it is less dense, it will float.
Question: A commuter backs her car out of her garage with an acceleration of 1.4 m/s² (a) How long does it take her to reach a speed of 2.00 m/s
Answer:
1.43 s
Explanation:
Applying,
a = (v-u)/t........... Equation 1
Where a = acceleration, v = final velocity, u = initial velocity, t = time
make t the subject of the equation
t = (v-u)/a........... Equation 2
From the question,
Given: v = 2 m/s, u = 0m/s (from rest), a = 1.4 m/s²
Substitute into equation 2
t = (2-0)/1.4
t = 1.43 s
Answer:
1350kgm/s
Explanation:
Given parameters:
Mass of footballer = 75kg
Velocity = 18m/s
Unknown:
Momentum = ?
Solution:
The momentum of a body is the quantity of motion it posses.
It is mathematically given as:
Momentum = mass x velocity
Momentum = 75 x 18
Momentum = 1350kgm/s
Answer:
the first one
Explanation: the first one because they were all on two different continents so when they seperated half of the species went on one continent and the other half went onto another one
Answer:
yes for both.
Explanation:
according to Newton's first law an object in motion will stay in motion until acted on by an outside force and an object at rest will stay at rest until acted on by an outside force. this means that an object that is moving will stay moving in the direction that it's moving and at the same speed unless there's an outside force acting on it and it will keep in motion until there is an outside force acting on it.