Answer:
When an object slows down, its acceleration is opposite to the direction of its motion. This is known as deceleration.
Explanation:
Answer:
Options A, D and E....make up cell theory
Answer:
The impala pushed down the ground with a force of 37.49N
Explanation:
The force at which the impala pushed down the ground can be calculated for using the Newton's second law of motion,
Force = mass × acceleration
Force = mass ×(velocity/time)
Given mass = 25.5kg
Time = 0.21seconds
To get the velocity, we will use one of the equation of motions;
Using v² = u²+2gH
where;
H is the height reached from the ground = 2.5m
g = 9.81m/s²
u is the initial velocity = 0m/s
v is the final velocity=?
Substituting this values to get the final velocity v;
v² = 0²+2(9.81)(2.5)
v² = 49.05
v = √49.05
v = 7.0m/s
Substituting this velocity into the formula for force we have;
Force = 25.5×(7.0/0.21)
Force = 25.5 × 1.47
Force = 37.49N
The impala pushed down the ground with a force of 37.49N
Answer:
1.89 x 10⁵ Pa
Explanation:
given,
depth of the lake = 9.05 m
atmospheric pressure = 1.01 × 10⁵ Pa
absolute pressure = ?
we know,
Absolute pressure = atmospheric pressure + gauge pressure
Absolute pressure = 1.01 × 10⁵ Pa + ρgh
Absolute pressure = 1.01 × 10⁵ Pa + 1000 x 9.8 x 9.05
Absolute pressure = 1.89 x 10⁵ Pa
hence, absolute pressure is equal to 1.89 x 10⁵ Pa
Bohr<span> thought that electrons orbited the nucleus in circular paths; whereas in the</span>modern<span> view </span>atomic<span> electron structure is more like 3D standing waves. </span>Bohr<span> built upon Rutherford's </span>model<span> of the </span>atom<span>. We still use bohrs one for some things.</span>