7. A box with a mass of 3.2 kg is pushed 0.667 m across a floor with an acceleration of 3.2 m/s². How much work is done on the box?

The specific heat capacity of silver is 0.06 cal/g°C. How much energy is needed to flow into a 5-gram sample to change its temperature from 10°C to 11°C?

Water is pumped through a pipe of diameter 15.0 cm, from the Colorado River up to Grand Canyon Village, located on the rim of the canyon. The river is at an elevation of 564 m, and the village is at an elevation of 2096 m.

You measure or observe two events to occur at the same time one nearby and one further away. Which one did you actually see first?

A fixed resistor, (R) is in parallel with a variable resistor; both are connected to a real battery (internal resistance is not negligible). A) Originally the fixed and variable resistors have the same resistance.

A rock is thrown horizontally at a speed of 5 m/s front the top of a cliff 64.7 m high. The rock hits the ground 18 m from the base of the cliff. How would this distance change if the rock was thrown at 10 m/s?

When is an object that has been dropped from a great height through the air closest to vein in a free fall? At it's terminal velocity < - - this one?

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200-kg puck has a speed of 1.00 m/s at an angle of? = 52.0

Ariella drove 40 miles to see her cousin. The trip took Ariella 2 hours. Then drove from her cousins house to a store for 30 miles. It took Ariella to hours to Ariella to arrive at the store. What was the average speed of the trip

A meandering river is flowing in a broad, alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control.

The Sun 1. Sara has made this list to summarize what she learned in science class today: 1. Core 2. Radiation zone 3. Convection zone What is the best title for her list? a. The Layers of the Interior of the Sun b. The Layers of the Sun c.